debug

Signed-off-by: Itxaka <itxaka.garcia@spectrocloud.com>

.dockerignore

@@ -0,0 +1,4 @@
+# More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+# Ignore build and test binaries.
+bin/
+testbin/

.github/workflows/e2e-tests.yml

@@ -0,0 +1,64 @@
+name: End to end tests
+on:
+  push:
+    paths-ignore:
+      - 'README.md'
+    branches:
+      - main
+  pull_request:
+    paths-ignore:
+      - 'README.md'
+
+jobs:
+  e2e-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - label: "local-encryption"
+          - label: "remote-auto"
+          - label: "remote-static"
+          - label: "remote-https-pinned"
+          - label: "remote-https-bad-cert"
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Install Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ^1.20
+      - name: Run tests
+        env:
+          LABEL: ${{ matrix.label }}
+          KVM: true
+        run: |
+          sudo apt update && \
+          sudo apt install -y git qemu-system-x86 qemu-utils swtpm jq make glibc-tools \
+          openssl curl gettext ca-certificates curl gnupg lsb-release
+
+          curl -L  https://github.com/mudler/luet/releases/download/0.33.0/luet-0.33.0-linux-amd64 -o luet
+          chmod +x luet
+          sudo mv luet /usr/bin/luet
+          sudo mkdir -p /etc/luet/repos.conf.d/
+          sudo luet repo add -y kairos --url quay.io/kairos/packages --type docker
+          LUET_NOLOCK=true sudo -E luet install -y container/kubectl utils/k3d utils/earthly
+
+          earthly -P +iso
+          export ISO=$PWD/build/challenger.iso
+          
+          # Configure earthly to use the docker mirror in CI
+          # https://docs.earthly.dev/ci-integration/pull-through-cache#configuring-earthly-to-use-the-cache
+          cat << EOF > ~/.earthly/config.yml
+          global:
+            buildkit_additional_config: |
+              [registry."docker.io"]
+                mirrors = ["registry.docker-mirror.svc.cluster.local:5000"]
+              [registry."registry.docker-mirror.svc.cluster.local:5000"]
+                insecure = true
+          EOF
+
+          # We run with sudo to be able to access /dev/kvm
+          sudo -E ./scripts/e2e-tests.sh

.github/workflows/image.yml

@@ -0,0 +1,63 @@
+---
+name: 'build container images'
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '*'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Prepare
+        id: prep
+        run: |
+          DOCKER_IMAGE=quay.io/kairos/kcrypt-challenger
+          VERSION=latest
+          SHORTREF=${GITHUB_SHA::8}
+          # If this is git tag, use the tag name as a docker tag
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          fi
+          TAGS="${DOCKER_IMAGE}:${VERSION},${DOCKER_IMAGE}:${SHORTREF}"
+          # If the VERSION looks like a version number, assume that
+          # this is the most recent version of the image and also
+          # tag it 'latest'.
+          if [[ $VERSION =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
+          fi
+          # Set output parameters.
+          echo ::set-output name=tags::${TAGS}
+          echo ::set-output name=docker_image::${DOCKER_IMAGE}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@master
+
+      - name: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_USERNAME }}
+          password: ${{ secrets.QUAY_PASSWORD }}
+
+      - name: Build
+        uses: docker/build-push-action@v2
+        with:
+          builder: ${{ steps.buildx.outputs.name }}
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.prep.outputs.tags }}

.github/workflows/lint.yml

@@ -0,0 +1,30 @@
+name: Lint
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    paths:
+      - '**'
+env:
+  FORCE_COLOR: 1
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Install Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ^1.20
+      - name: Install earthly
+        uses: Luet-lab/luet-install-action@v1
+        with:
+          repository: quay.io/kairos/packages
+          packages: utils/earthly
+      - name: Run Lint checks
+        run: |
+          earthly +lint

.github/workflows/unit-tests.yml

@@ -0,0 +1,19 @@
+---
+name: Unit tests
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Run tests
+        run: |
+          ./earthly.sh +test

.gitignore

@@ -0,0 +1,26 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+bin
+testbin/*
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Kubernetes Generated files - skip generated files, except for vendored files
+
+!vendor/**/zz_generated.*
+
+# editor and IDE paraphernalia
+.idea
+*.swp
+*.swo
+*~
+
+/helm-chart

.yamllint

@@ -0,0 +1,21 @@
+extends: default
+
+rules:
+  # 80 chars should be enough, but don't fail if a line is longer
+  line-length:
+    max: 150
+    level: warning
+
+  # accept both     key:
+  #                   - item
+  #
+  # and             key:
+  #                 - item
+  indentation:
+    indent-sequences: whatever
+
+  truthy:
+    check-keys: false
+
+  document-start:
+    present: false

Dockerfile

@@ -0,0 +1,28 @@
+# Build the manager binary
+FROM golang:1.20 as builder
+
+WORKDIR /workspace
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
+RUN go mod download
+
+# Copy the go source
+COPY main.go main.go
+COPY api/ api/
+COPY pkg/ pkg/
+COPY controllers/ controllers/
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
+
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY --from=builder /workspace/manager .
+USER 65532:65532
+
+ENTRYPOINT ["/manager"]

Earthfile

@@ -0,0 +1,122 @@
+VERSION 0.6
+ARG BASE_IMAGE=quay.io/kairos/core-ubuntu:latest
+ARG OSBUILDER_IMAGE=quay.io/kairos/osbuilder-tools
+# renovate: datasource=docker depName=golang
+ARG GO_VERSION=1.20
+ARG LUET_VERSION=0.33.0
+
+build-challenger:
+    FROM golang:alpine
+    COPY . /work
+    WORKDIR /work
+    RUN CGO_ENABLED=0 go build -o kcrypt-discovery-challenger ./cmd/discovery
+    SAVE ARTIFACT /work/kcrypt-discovery-challenger AS LOCAL kcrypt-discovery-challenger
+
+image:
+    FROM $BASE_IMAGE
+    ARG IMAGE
+    COPY +build-challenger/kcrypt-discovery-challenger /system/discovery/kcrypt-discovery-challenger
+    SAVE IMAGE $IMAGE
+
+image-rootfs:
+  FROM +image
+  SAVE ARTIFACT --keep-own /. rootfs
+
+grub-files:
+    FROM alpine
+    RUN apk add wget
+    RUN wget https://raw.githubusercontent.com/c3os-io/c3os/master/overlay/files-iso/boot/grub2/grub.cfg -O grub.cfg
+    SAVE ARTIFACT --keep-own grub.cfg grub.cfg
+
+iso:
+    ARG OSBUILDER_IMAGE
+    ARG ISO_NAME=challenger
+    FROM $OSBUILDER_IMAGE
+    WORKDIR /build
+    COPY --keep-own +grub-files/grub.cfg /build/files-iso/boot/grub2/grub.cfg
+    COPY --keep-own +image-rootfs/rootfs /build/rootfs
+    RUN /entrypoint.sh --name $ISO_NAME --debug build-iso --squash-no-compression --date=false --local --overlay-iso /build/files-iso --output /build/ dir:/build/rootfs
+    SAVE ARTIFACT /build/$ISO_NAME.iso kairos.iso AS LOCAL build/$ISO_NAME.iso
+    SAVE ARTIFACT /build/$ISO_NAME.iso.sha256 kairos.iso.sha256 AS LOCAL build/$ISO_NAME.iso.sha256
+
+test:
+    ARG GO_VERSION
+    FROM golang:$GO_VERSION
+    ENV CGO_ENABLED=0
+
+    WORKDIR /work
+
+    # Cache layer for modules
+    COPY go.mod go.sum ./
+    RUN go mod download && go mod verify
+
+    RUN go get github.com/onsi/gomega/...
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/internal@v2.1.4
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/generators@v2.1.4
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/labels@v2.1.4
+    RUN go install -mod=mod github.com/onsi/ginkgo/v2/ginkgo
+
+    COPY . /work
+    RUN PATH=$PATH:$GOPATH/bin ginkgo run --covermode=atomic --coverprofile=coverage.out -p -r pkg/challenger cmd/discovery/client
+    SAVE ARTIFACT coverage.out AS LOCAL coverage.out
+
+# Generic targets
+# usage e.g. ./earthly.sh +datasource-iso --CLOUD_CONFIG=tests/assets/qrcode.yaml
+datasource-iso:
+  ARG OSBUILDER_IMAGE
+  ARG CLOUD_CONFIG
+  FROM $OSBUILDER_IMAGE
+  RUN zypper in -y mkisofs
+  WORKDIR /build
+  RUN touch meta-data
+
+  COPY ${CLOUD_CONFIG} user-data
+  RUN cat user-data
+  RUN mkisofs -output ci.iso -volid cidata -joliet -rock user-data meta-data
+  SAVE ARTIFACT /build/ci.iso iso.iso AS LOCAL build/datasource.iso
+
+luet:
+    FROM quay.io/luet/base:$LUET_VERSION
+    SAVE ARTIFACT /usr/bin/luet /luet
+
+e2e-tests-image:
+    FROM opensuse/tumbleweed
+    RUN zypper in -y go git qemu-x86 qemu-arm qemu-tools swtpm docker jq docker-compose make glibc libopenssl-devel curl gettext-runtime
+    ENV GOPATH="/go"
+
+    COPY . /test
+    WORKDIR /test
+
+    RUN go install -mod=mod github.com/onsi/ginkgo/v2/ginkgo
+    RUN go get github.com/onsi/gomega/...
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/internal@v2.7.1
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/generators@v2.7.1
+    RUN go get github.com/onsi/ginkgo/v2/ginkgo/labels@v2.7.1
+
+    IF [ -e /test/build/kairos.iso ]
+        ENV ISO=/test/build/kairos.iso
+    ELSE
+        COPY +iso/kairos.iso kairos.iso
+        ENV ISO=/test/kairos.iso
+    END
+
+    COPY +luet/luet /usr/bin/luet
+    RUN mkdir -p /etc/luet/repos.conf.d/
+    RUN luet repo add -y kairos --url quay.io/kairos/packages --type docker
+    RUN LUET_NOLOCK=true luet install -y container/kubectl utils/k3d
+
+e2e-tests:
+    FROM +e2e-tests-image
+    ARG LABEL
+
+    WITH DOCKER --allow-privileged
+        RUN ./scripts/e2e-tests.sh
+    END
+
+lint:
+    BUILD +yamllint
+
+yamllint:
+    FROM cytopia/yamllint
+    COPY . .
+    RUN yamllint .github/workflows/

Makefile

@@ -0,0 +1,260 @@
+# VERSION defines the project version for the bundle.
+# Update this value when you upgrade the version of your project.
+# To re-generate a bundle for another specific version without changing the standard setup, you can:
+# - use the VERSION as arg of the bundle target (e.g make bundle VERSION=0.0.2)
+# - use environment variables to overwrite this value (e.g export VERSION=0.0.2)
+VERSION ?= 0.0.1
+
+# CHANNELS define the bundle channels used in the bundle.
+# Add a new line here if you would like to change its default config. (E.g CHANNELS = "candidate,fast,stable")
+# To re-generate a bundle for other specific channels without changing the standard setup, you can:
+# - use the CHANNELS as arg of the bundle target (e.g make bundle CHANNELS=candidate,fast,stable)
+# - use environment variables to overwrite this value (e.g export CHANNELS="candidate,fast,stable")
+ifneq ($(origin CHANNELS), undefined)
+BUNDLE_CHANNELS := --channels=$(CHANNELS)
+endif
+
+# DEFAULT_CHANNEL defines the default channel used in the bundle.
+# Add a new line here if you would like to change its default config. (E.g DEFAULT_CHANNEL = "stable")
+# To re-generate a bundle for any other default channel without changing the default setup, you can:
+# - use the DEFAULT_CHANNEL as arg of the bundle target (e.g make bundle DEFAULT_CHANNEL=stable)
+# - use environment variables to overwrite this value (e.g export DEFAULT_CHANNEL="stable")
+ifneq ($(origin DEFAULT_CHANNEL), undefined)
+BUNDLE_DEFAULT_CHANNEL := --default-channel=$(DEFAULT_CHANNEL)
+endif
+BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL)
+
+# IMAGE_TAG_BASE defines the docker.io namespace and part of the image name for remote images.
+# This variable is used to construct full image tags for bundle and catalog images.
+#
+# For example, running 'make bundle-build bundle-push catalog-build catalog-push' will build and push both
+# kairos.io/kcrypt-controller-bundle:$VERSION and kairos.io/kcrypt-controller-catalog:$VERSION.
+IMAGE_TAG_BASE ?= quay.io/kairos/kcrypt-controller
+
+# BUNDLE_IMG defines the image:tag used for the bundle.
+# You can use it as an arg. (E.g make bundle-build BUNDLE_IMG=<some-registry>/<project-name-bundle>:<tag>)
+BUNDLE_IMG ?= $(IMAGE_TAG_BASE)-bundle:v$(VERSION)
+
+# BUNDLE_GEN_FLAGS are the flags passed to the operator-sdk generate bundle command
+BUNDLE_GEN_FLAGS ?= -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS)
+
+# USE_IMAGE_DIGESTS defines if images are resolved via tags or digests
+# You can enable this value if you would like to use SHA Based Digests
+# To enable set flag to true
+USE_IMAGE_DIGESTS ?= false
+ifeq ($(USE_IMAGE_DIGESTS), true)
+	BUNDLE_GEN_FLAGS += --use-image-digests
+endif
+
+# Image URL to use all building/pushing image targets
+IMG ?= controller:latest
+# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
+ENVTEST_K8S_VERSION = 1.24.2
+
+# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
+ifeq (,$(shell go env GOBIN))
+GOBIN=$(shell go env GOPATH)/bin
+else
+GOBIN=$(shell go env GOBIN)
+endif
+
+# Setting SHELL to bash allows bash commands to be executed by recipes.
+# Options are set to exit when a recipe line exits non-zero or a piped command fails.
+SHELL = /usr/bin/env bash -o pipefail
+.SHELLFLAGS = -ec
+
+.PHONY: all
+all: build
+
+##@ General
+
+# The help target prints out all targets with their descriptions organized
+# beneath their categories. The categories are represented by '##@' and the
+# target descriptions by '##'. The awk commands is responsible for reading the
+# entire set of makefiles included in this invocation, looking for lines of the
+# file as xyz: ## something, and then pretty-format the target and help. Then,
+# if there's a line with ##@ something, that gets pretty-printed as a category.
+# More info on the usage of ANSI control characters for terminal formatting:
+# https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters
+# More info on the awk command:
+# http://linuxcommand.org/lc3_adv_awk.php
+
+.PHONY: help
+help: ## Display this help.
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+##@ Development
+
+.PHONY: manifests
+manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
+	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases
+
+.PHONY: generate
+generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
+	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
+
+.PHONY: fmt
+fmt: ## Run go fmt against code.
+	go fmt ./...
+
+.PHONY: vet
+vet: ## Run go vet against code.
+	go vet ./...
+
+.PHONY: test
+test: manifests generate fmt vet envtest ## Run tests.
+	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" go test ./pkg/... -coverprofile cover.out
+
+##@ Build
+
+.PHONY: build
+build: generate fmt vet ## Build manager binary.
+	go build -o bin/manager main.go
+
+.PHONY: run
+run: manifests generate fmt vet ## Run a controller from your host.
+	go run ./main.go
+
+.PHONY: docker-build
+docker-build: test ## Build docker image with the manager.
+	docker build -t ${IMG} .
+
+.PHONY: docker-push
+docker-push: ## Push docker image with the manager.
+	docker push ${IMG}
+
+##@ Deployment
+
+ifndef ignore-not-found
+  ignore-not-found = true
+endif
+
+.PHONY: install
+install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
+	$(KUSTOMIZE) build config/crd | kubectl apply -f -
+
+.PHONY: uninstall
+uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/crd | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+
+.PHONY: deploy
+deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	$(KUSTOMIZE) build config/default | kubectl apply -f -
+
+.PHONY: undeploy
+undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/default | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+
+##@ Build Dependencies
+
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
+
+## Tool Binaries
+KUSTOMIZE ?= $(LOCALBIN)/kustomize
+CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
+ENVTEST ?= $(LOCALBIN)/setup-envtest
+
+## Tool Versions
+KUSTOMIZE_VERSION ?= v3.8.7
+CONTROLLER_TOOLS_VERSION ?= v0.9.2
+
+KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
+.PHONY: kustomize
+kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary.
+$(KUSTOMIZE): $(LOCALBIN)
+	test -s $(LOCALBIN)/kustomize || { curl -s $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); }
+
+.PHONY: controller-gen
+controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
+$(CONTROLLER_GEN): $(LOCALBIN)
+	test -s $(LOCALBIN)/controller-gen || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
+
+.PHONY: envtest
+envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
+$(ENVTEST): $(LOCALBIN)
+	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
+
+.PHONY: bundle
+bundle: manifests kustomize ## Generate bundle manifests and metadata, then validate generated files.
+	operator-sdk generate kustomize manifests -q
+	cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
+	$(KUSTOMIZE) build config/manifests | operator-sdk generate bundle $(BUNDLE_GEN_FLAGS)
+	operator-sdk bundle validate ./bundle
+
+.PHONY: bundle-build
+bundle-build: ## Build the bundle image.
+	docker build -f bundle.Dockerfile -t $(BUNDLE_IMG) .
+
+.PHONY: bundle-push
+bundle-push: ## Push the bundle image.
+	$(MAKE) docker-push IMG=$(BUNDLE_IMG)
+
+.PHONY: opm
+OPM = ./bin/opm
+opm: ## Download opm locally if necessary.
+ifeq (,$(wildcard $(OPM)))
+ifeq (,$(shell which opm 2>/dev/null))
+	@{ \
+	set -e ;\
+	mkdir -p $(dir $(OPM)) ;\
+	OS=$(shell go env GOOS) && ARCH=$(shell go env GOARCH) && \
+	curl -sSLo $(OPM) https://github.com/operator-framework/operator-registry/releases/download/v1.23.0/$${OS}-$${ARCH}-opm ;\
+	chmod +x $(OPM) ;\
+	}
+else
+OPM = $(shell which opm)
+endif
+endif
+
+# A comma-separated list of bundle images (e.g. make catalog-build BUNDLE_IMGS=example.com/operator-bundle:v0.1.0,example.com/operator-bundle:v0.2.0).
+# These images MUST exist in a registry and be pull-able.
+BUNDLE_IMGS ?= $(BUNDLE_IMG)
+
+# The image tag given to the resulting catalog image (e.g. make catalog-build CATALOG_IMG=example.com/operator-catalog:v0.2.0).
+CATALOG_IMG ?= $(IMAGE_TAG_BASE)-catalog:v$(VERSION)
+
+# Set CATALOG_BASE_IMG to an existing catalog image tag to add $BUNDLE_IMGS to that image.
+ifneq ($(origin CATALOG_BASE_IMG), undefined)
+FROM_INDEX_OPT := --from-index $(CATALOG_BASE_IMG)
+endif
+
+# Build a catalog image by adding bundle images to an empty catalog using the operator package manager tool, 'opm'.
+# This recipe invokes 'opm' in 'semver' bundle add mode. For more information on add modes, see:
+# https://github.com/operator-framework/community-operators/blob/7f1438c/docs/packaging-operator.md#updating-your-existing-operator
+.PHONY: catalog-build
+catalog-build: opm ## Build a catalog image.
+	$(OPM) index add --container-tool docker --mode semver --tag $(CATALOG_IMG) --bundles $(BUNDLE_IMGS) $(FROM_INDEX_OPT)
+
+# Push the catalog image.
+.PHONY: catalog-push
+catalog-push: ## Push a catalog image.
+	$(MAKE) docker-push IMG=$(CATALOG_IMG)
+
+CLUSTER_NAME?="kairos-challenger-e2e"
+
+kind-setup:
+	kind create cluster --name ${CLUSTER_NAME} || true
+	$(MAKE) kind-setup-image
+
+kind-setup-image: docker-build
+	kind load docker-image --name $(CLUSTER_NAME) $(IMG)
+
+kind-prepare-tests: kind-setup install undeploy-dev deploy-dev
+
+.PHONY: deploy-dev
+deploy-dev: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
+	cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
+	$(KUSTOMIZE) build config/dev | kubectl apply -f -
+
+.PHONY: undeploy-dev
+undeploy-dev: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/dev | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+
+kubesplit: manifests kustomize
+	rm -rf helm-chart
+	mkdir helm-chart
+	$(KUSTOMIZE) build config/default | kubesplit -helm helm-chart

PROJECT

@@ -0,0 +1,19 @@
+domain: kairos.io
+layout:
+- go.kubebuilder.io/v3
+plugins:
+  manifests.sdk.operatorframework.io/v2: {}
+  scorecard.sdk.operatorframework.io/v2: {}
+projectName: kcrypt-controller
+repo: github.com/kairos-io/kairos-challenger
+resources:
+- api:
+    crdVersion: v1
+    namespaced: true
+  controller: true
+  domain: kairos.io
+  group: keyserver
+  kind: SealedVolume
+  path: github.com/kairos-io/kairos-challenger/api/v1alpha1
+  version: v1alpha1
+version: "3"

README.md

@@ -0,0 +1,92 @@
+<h1 align="center">
+  <br>
+     <img width="184" alt="kairos-white-column 5bc2fe34" src="https://user-images.githubusercontent.com/2420543/193010398-72d4ba6e-7efe-4c2e-b7ba-d3a826a55b7d.png"><br>
+    Kcrypt challenger
+<br>
+</h1>
+
+<h3 align="center">Kcrypt TPM challenger</h3>
+<p align="center">
+  <a href="https://opensource.org/licenses/">
+    <img src="https://img.shields.io/badge/licence-APL2-brightgreen"
+         alt="license">
+  </a>
+  <a href="https://github.com/kairos-io/kcrypt-challenger/issues"><img src="https://img.shields.io/github/issues/kairos-io/kcrypt-challenger"></a>
+  <a href="https://kairos.io/docs/" target=_blank> <img src="https://img.shields.io/badge/Documentation-blue"
+         alt="docs"></a>
+  <img src="https://img.shields.io/badge/made%20with-Go-blue">
+  <img src="https://goreportcard.com/badge/github.com/kairos-io/kcrypt-challenger" alt="go report card" />
+  <a href="https://github.com/kairos-io/kcrypt-challenger/actions/workflows/e2e-tests.yml?query=branch%3Amain"> <img src="https://github.com/kairos-io/kcrypt-challenger/actions/workflows/e2e-tests.yml/badge.svg?branch=main"></a>
+</p>
+
+
+With Kairos you can build immutable, bootable Kubernetes and OS images for your edge devices as easily as writing a Dockerfile. Optional P2P mesh with distributed ledger automates node bootstrapping and coordination. Updating nodes is as easy as CI/CD: push a new image to your container registry and let secure, risk-free A/B atomic upgrades do the rest.
+
+
+<table>
+<tr>
+<th align="center">
+<img width="640" height="1px">
+<p> 
+<small>
+Documentation
+</small>
+</p>
+</th>
+<th align="center">
+<img width="640" height="1">
+<p> 
+<small>
+Contribute
+</small>
+</p>
+</th>
+</tr>
+<tr>
+<td>
+
+ 📚 [Getting started with Kairos](https://kairos.io/docs/getting-started) <br> :bulb: [Examples](https://kairos.io/docs/examples) <br> :movie_camera: [Video](https://kairos.io/docs/media/) <br> :open_hands:[Engage with the Community](https://kairos.io/community/)
+  
+</td>
+<td>
+  
+🙌[ CONTRIBUTING.md ]( https://github.com/kairos-io/kairos/blob/master/CONTRIBUTING.md ) <br> :raising_hand: [ GOVERNANCE ]( https://github.com/kairos-io/kairos/blob/master/GOVERNANCE.md ) <br>:construction_worker:[Code of conduct](https://github.com/kairos-io/kairos/blob/master/CODE_OF_CONDUCT.md) 
+  
+</td>
+</tr>
+</table>
+
+| :exclamation: | This is experimental! |
+|-|:-|
+
+This is the Kairos kcrypt-challenger Kubernetes Native Extension. 
+
+## Usage
+
+See the documentation in our website: https://kairos.io/docs/advanced/partition_encryption/.
+
+## Installation
+
+To install, use helm:
+
+```
+# Adds the kairos repo to helm
+$ helm repo add kairos https://kairos-io.github.io/helm-charts
+"kairos" has been added to your repositories
+$ helm repo update                                        
+Hang tight while we grab the latest from your chart repositories...
+...Successfully got an update from the "kairos" chart repository
+Update Complete. ⎈Happy Helming!⎈
+
+# Install the CRD chart
+$ helm install kairos-crd kairos/kairos-crds
+NAME: kairos-crd
+LAST DEPLOYED: Tue Sep  6 20:35:34 2022
+NAMESPACE: default
+STATUS: deployed
+REVISION: 1
+TEST SUITE: None
+
+# Installs challenger
+$ helm install kairos-challenger kairos/kcrypt-challenger
+```

api/v1alpha1/groupversion_info.go

@@ -0,0 +1,36 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1alpha1 contains API Schema definitions for the keyserver v1alpha1 API group
+// +kubebuilder:object:generate=true
+// +groupName=keyserver.kairos.io
+package v1alpha1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	// GroupVersion is group version used to register these objects
+	GroupVersion = schema.GroupVersion{Group: "keyserver.kairos.io", Version: "v1alpha1"}
+
+	// SchemeBuilder is used to add go types to the GroupVersionKind scheme
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	// AddToScheme adds the types in this group-version to the given scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)

api/v1alpha1/sealedvolume_types.go

@@ -0,0 +1,77 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+// NOTE: json tags are required.  Any new fields you add must have json tags for the fields to be serialized.
+
+// SealedVolumeSpec defines the desired state of SealedVolume
+type SealedVolumeSpec struct {
+	TPMHash     string          `json:"TPMHash,omitempty"`
+	Partitions  []PartitionSpec `json:"partitions,omitempty"`
+	Quarantined bool            `json:"quarantined,omitempty"`
+}
+
+// PartitionSpec defines a Partition. A partition can be identified using
+// any of the fields: Label, DeviceName, UUID. The Secret defines the secret
+// which decrypts the partition.
+type PartitionSpec struct {
+	Label      string      `json:"label,omitempty"`
+	DeviceName string      `json:"deviceName,omitempty"`
+	UUID       string      `json:"uuid,omitempty"`
+	Secret     *SecretSpec `json:"secret,omitempty"`
+}
+
+type SecretSpec struct {
+	Name string `json:"name,omitempty"`
+	Path string `json:"path,omitempty"`
+}
+
+// SealedVolumeStatus defines the observed state of SealedVolume
+type SealedVolumeStatus struct {
+	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+}
+
+//+kubebuilder:object:root=true
+//+kubebuilder:subresource:status
+
+// SealedVolume is the Schema for the sealedvolumes API
+type SealedVolume struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   SealedVolumeSpec   `json:"spec,omitempty"`
+	Status SealedVolumeStatus `json:"status,omitempty"`
+}
+
+//+kubebuilder:object:root=true
+
+// SealedVolumeList contains a list of SealedVolume
+type SealedVolumeList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []SealedVolume `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&SealedVolume{}, &SealedVolumeList{})
+}

api/v1alpha1/zz_generated.deepcopy.go

@@ -0,0 +1,157 @@
+//go:build !ignore_autogenerated
+// +build !ignore_autogenerated
+
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by controller-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *PartitionSpec) DeepCopyInto(out *PartitionSpec) {
+	*out = *in
+	if in.Secret != nil {
+		in, out := &in.Secret, &out.Secret
+		*out = new(SecretSpec)
+		**out = **in
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PartitionSpec.
+func (in *PartitionSpec) DeepCopy() *PartitionSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(PartitionSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SealedVolume) DeepCopyInto(out *SealedVolume) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
+	in.Spec.DeepCopyInto(&out.Spec)
+	out.Status = in.Status
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SealedVolume.
+func (in *SealedVolume) DeepCopy() *SealedVolume {
+	if in == nil {
+		return nil
+	}
+	out := new(SealedVolume)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *SealedVolume) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SealedVolumeList) DeepCopyInto(out *SealedVolumeList) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]SealedVolume, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SealedVolumeList.
+func (in *SealedVolumeList) DeepCopy() *SealedVolumeList {
+	if in == nil {
+		return nil
+	}
+	out := new(SealedVolumeList)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *SealedVolumeList) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SealedVolumeSpec) DeepCopyInto(out *SealedVolumeSpec) {
+	*out = *in
+	if in.Partitions != nil {
+		in, out := &in.Partitions, &out.Partitions
+		*out = make([]PartitionSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SealedVolumeSpec.
+func (in *SealedVolumeSpec) DeepCopy() *SealedVolumeSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(SealedVolumeSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SealedVolumeStatus) DeepCopyInto(out *SealedVolumeStatus) {
+	*out = *in
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SealedVolumeStatus.
+func (in *SealedVolumeStatus) DeepCopy() *SealedVolumeStatus {
+	if in == nil {
+		return nil
+	}
+	out := new(SealedVolumeStatus)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SecretSpec) DeepCopyInto(out *SecretSpec) {
+	*out = *in
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SecretSpec.
+func (in *SecretSpec) DeepCopy() *SecretSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(SecretSpec)
+	in.DeepCopyInto(out)
+	return out
+}

cmd/discovery/client/client.go

@@ -0,0 +1,147 @@
+package client
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/jaypipes/ghw/pkg/block"
+	"github.com/kairos-io/kairos-challenger/pkg/constants"
+	"github.com/kairos-io/kairos-challenger/pkg/payload"
+	"github.com/kairos-io/kcrypt/pkg/bus"
+	"github.com/kairos-io/tpm-helpers"
+	"github.com/mudler/go-pluggable"
+	"github.com/mudler/yip/pkg/utils"
+)
+
+var errPartNotFound error = fmt.Errorf("pass for partition not found")
+var errBadCertificate error = fmt.Errorf("unknown certificate")
+
+func NewClient() (*Client, error) {
+	conf, err := unmarshalConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	return &Client{Config: conf}, nil
+}
+
+// ❯ echo '{ "data": "{ \\"label\\": \\"LABEL\\" }"}' | sudo -E WSS_SERVER="http://localhost:8082/challenge" ./challenger "discovery.password"
+func (c *Client) Start() error {
+	factory := pluggable.NewPluginFactory()
+
+	// Input: bus.EventInstallPayload
+	// Expected output: map[string]string{}
+	factory.Add(bus.EventDiscoveryPassword, func(e *pluggable.Event) pluggable.EventResponse {
+
+		b := &block.Partition{}
+		err := json.Unmarshal([]byte(e.Data), b)
+		if err != nil {
+			return pluggable.EventResponse{
+				Error: fmt.Sprintf("failed reading partitions: %s", err.Error()),
+			}
+		}
+
+		pass, err := c.waitPass(b, 30)
+		if err != nil {
+			return pluggable.EventResponse{
+				Error: fmt.Sprintf("failed getting pass: %s", err.Error()),
+			}
+		}
+
+		return pluggable.EventResponse{
+			Data: pass,
+		}
+	})
+
+	return factory.Run(pluggable.EventType(os.Args[1]), os.Stdin, os.Stdout)
+}
+
+func (c *Client) generatePass(postEndpoint string, p *block.Partition) error {
+
+	rand := utils.RandomString(32)
+	pass, err := tpm.EncryptBlob([]byte(rand))
+	if err != nil {
+		return err
+	}
+	bpass := base64.RawURLEncoding.EncodeToString(pass)
+
+	opts := []tpm.Option{
+		tpm.WithCAs([]byte(c.Config.Kcrypt.Challenger.Certificate)),
+		tpm.AppendCustomCAToSystemCA,
+		tpm.WithAdditionalHeader("label", p.Label),
+		tpm.WithAdditionalHeader("name", p.Name),
+		tpm.WithAdditionalHeader("uuid", p.UUID),
+	}
+	conn, err := tpm.Connection(postEndpoint, opts...)
+	if err != nil {
+		return err
+	}
+
+	return conn.WriteJSON(payload.Data{Passphrase: bpass, GeneratedBy: constants.TPMSecret})
+}
+
+func (c *Client) waitPass(p *block.Partition, attempts int) (pass string, err error) {
+	// IF we don't have any server configured, just do local
+	if c.Config.Kcrypt.Challenger.Server == "" {
+		return localPass(c.Config)
+	}
+
+	challengeEndpoint := fmt.Sprintf("%s/getPass", c.Config.Kcrypt.Challenger.Server)
+	postEndpoint := fmt.Sprintf("%s/postPass", c.Config.Kcrypt.Challenger.Server)
+
+	for tries := 0; tries < attempts; tries++ {
+		var generated bool
+		pass, generated, err = getPass(challengeEndpoint, c.Config.Kcrypt.Challenger.Certificate, p)
+		if err == errPartNotFound {
+			// IF server doesn't have a pass for us, then we generate one and we set it
+			err = c.generatePass(postEndpoint, p)
+			if err != nil {
+				return
+			}
+			// Attempt to fetch again - validate that the server has it now
+			tries = 0
+			continue
+		}
+
+		if generated { // passphrase is encrypted
+			return c.decryptPassphrase(pass)
+		}
+
+		if err == errBadCertificate { // No need to retry, won't succeed.
+			return
+		}
+
+		if err == nil { // passphrase available, no errors
+			return
+		}
+
+		fmt.Printf("Failed with error: %s . Will retry.\n", err.Error())
+		time.Sleep(1 * time.Second) // network errors? retry
+	}
+
+	return
+}
+
+// decryptPassphrase decodes (base64) and decrypts the passphrase returned
+// by the challenger server.
+func (c *Client) decryptPassphrase(pass string) (string, error) {
+	blob, err := base64.RawURLEncoding.DecodeString(pass)
+	if err != nil {
+		return "", err
+	}
+
+	// Decrypt and return it to unseal the LUKS volume
+	opts := []tpm.TPMOption{}
+	if c.Config.Kcrypt.Challenger.CIndex != "" {
+		opts = append(opts, tpm.WithIndex(c.Config.Kcrypt.Challenger.CIndex))
+	}
+	if c.Config.Kcrypt.Challenger.TPMDevice != "" {
+		opts = append(opts, tpm.WithDevice(c.Config.Kcrypt.Challenger.TPMDevice))
+	}
+	passBytes, err := tpm.DecryptBlob(blob, opts...)
+
+	return string(passBytes), err
+}

cmd/discovery/client/config.go

@@ -0,0 +1,39 @@
+package client
+
+import (
+	"github.com/kairos-io/kairos/pkg/config"
+	kconfig "github.com/kairos-io/kcrypt/pkg/config"
+)
+
+type Client struct {
+	Config Config
+}
+
+type Config struct {
+	Kcrypt struct {
+		Challenger struct {
+			Server string `yaml:"challenger_server,omitempty"`
+			// Non-volatile index memory: where we store the encrypted passphrase (offline mode)
+			NVIndex string `yaml:"nv_index,omitempty"`
+			// Certificate index: this is where the rsa pair that decrypts the passphrase lives
+			CIndex      string `yaml:"c_index,omitempty"`
+			TPMDevice   string `yaml:"tpm_device,omitempty"`
+			Certificate string `yaml:"certificate,omitempty"`
+		}
+	}
+}
+
+func unmarshalConfig() (Config, error) {
+	var result Config
+
+	c, err := config.Scan(config.Directories(kconfig.ConfigScanDirs...), config.NoLogs)
+	if err != nil {
+		return result, err
+	}
+
+	if err = c.Unmarshal(&result); err != nil {
+		return result, err
+	}
+
+	return result, nil
+}

cmd/discovery/client/enc.go

@@ -0,0 +1,98 @@
+package client
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/kairos-io/kairos-challenger/pkg/constants"
+	"github.com/kairos-io/kairos-challenger/pkg/payload"
+
+	"github.com/jaypipes/ghw/pkg/block"
+	"github.com/kairos-io/tpm-helpers"
+	"github.com/mudler/yip/pkg/utils"
+	"github.com/pkg/errors"
+)
+
+const DefaultNVIndex = "0x1500000"
+
+func getPass(server, certificate string, partition *block.Partition) (string, bool, error) {
+	msg, err := tpm.Get(server,
+		tpm.WithCAs([]byte(certificate)),
+		tpm.AppendCustomCAToSystemCA,
+		tpm.WithAdditionalHeader("label", partition.Label),
+		tpm.WithAdditionalHeader("name", partition.Name),
+		tpm.WithAdditionalHeader("uuid", partition.UUID))
+	if err != nil {
+		return "", false, err
+	}
+	result := payload.Data{}
+	err = json.Unmarshal(msg, &result)
+	if err != nil {
+		return "", false, errors.Wrap(err, string(msg))
+	}
+
+	if result.HasPassphrase() {
+		return fmt.Sprint(result.Passphrase), result.HasBeenGenerated() && result.GeneratedBy == constants.TPMSecret, nil
+	} else if result.HasError() {
+		if strings.Contains(result.Error, "No secret found for") {
+			return "", false, errPartNotFound
+		}
+		if strings.Contains(result.Error, "x509: certificate signed by unknown authority") {
+			return "", false, errBadCertificate
+		}
+		return "", false, fmt.Errorf(result.Error)
+	}
+
+	return "", false, errPartNotFound
+}
+
+func genAndStore(k Config) (string, error) {
+	opts := []tpm.TPMOption{}
+	if k.Kcrypt.Challenger.TPMDevice != "" {
+		opts = append(opts, tpm.WithDevice(k.Kcrypt.Challenger.TPMDevice))
+	}
+	if k.Kcrypt.Challenger.CIndex != "" {
+		opts = append(opts, tpm.WithIndex(k.Kcrypt.Challenger.CIndex))
+	}
+
+	// Generate a new one, and return it to luks
+	rand := utils.RandomString(32)
+	blob, err := tpm.EncryptBlob([]byte(rand))
+	if err != nil {
+		return "", err
+	}
+	nvindex := DefaultNVIndex
+	if k.Kcrypt.Challenger.NVIndex != "" {
+		nvindex = k.Kcrypt.Challenger.NVIndex
+	}
+	opts = append(opts, tpm.WithIndex(nvindex))
+	return rand, tpm.StoreBlob(blob, opts...)
+}
+
+func localPass(k Config) (string, error) {
+	index := DefaultNVIndex
+	if k.Kcrypt.Challenger.NVIndex != "" {
+		index = k.Kcrypt.Challenger.NVIndex
+	}
+	opts := []tpm.TPMOption{tpm.WithIndex(index)}
+	if k.Kcrypt.Challenger.TPMDevice != "" {
+		opts = append(opts, tpm.WithDevice(k.Kcrypt.Challenger.TPMDevice))
+	}
+	encodedPass, err := tpm.ReadBlob(opts...)
+	if err != nil {
+		// Generate if we fail to read from the assigned blob
+		return genAndStore(k)
+	}
+
+	// Decode and give it back
+	opts = []tpm.TPMOption{}
+	if k.Kcrypt.Challenger.CIndex != "" {
+		opts = append(opts, tpm.WithIndex(k.Kcrypt.Challenger.CIndex))
+	}
+	if k.Kcrypt.Challenger.TPMDevice != "" {
+		opts = append(opts, tpm.WithDevice(k.Kcrypt.Challenger.TPMDevice))
+	}
+	pass, err := tpm.DecryptBlob(encodedPass, opts...)
+	return string(pass), err
+}

cmd/discovery/main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/kairos-io/kairos-challenger/cmd/discovery/client"
+	"github.com/kairos-io/kcrypt/pkg/bus"
+	"github.com/kairos-io/tpm-helpers"
+)
+
+func main() {
+	if len(os.Args) >= 2 && bus.IsEventDefined(os.Args[1]) {
+		c, err := client.NewClient()
+		checkErr(err)
+		checkErr(c.Start())
+		return
+	}
+
+	pubhash, err := tpm.GetPubHash()
+	checkErr(err)
+	fmt.Print(pubhash)
+}
+
+func checkErr(err error) {
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}

config/crd/bases/keyserver.kairos.io_sealedvolumes.yaml

@@ -0,0 +1,71 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.9.2
+  creationTimestamp: null
+  name: sealedvolumes.keyserver.kairos.io
+spec:
+  group: keyserver.kairos.io
+  names:
+    kind: SealedVolume
+    listKind: SealedVolumeList
+    plural: sealedvolumes
+    singular: sealedvolume
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: SealedVolume is the Schema for the sealedvolumes API
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation
+              of an object. Servers should convert recognized schemas to the latest
+              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this
+              object represents. Servers may infer this from the endpoint the client
+              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: SealedVolumeSpec defines the desired state of SealedVolume
+            properties:
+              TPMHash:
+                type: string
+              partitions:
+                items:
+                  description: 'PartitionSpec defines a Partition. A partition can
+                    be identified using any of the fields: Label, DeviceName, UUID.
+                    The Secret defines the secret which decrypts the partition.'
+                  properties:
+                    deviceName:
+                      type: string
+                    label:
+                      type: string
+                    secret:
+                      properties:
+                        name:
+                          type: string
+                        path:
+                          type: string
+                      type: object
+                    uuid:
+                      type: string
+                  type: object
+                type: array
+              quarantined:
+                type: boolean
+            type: object
+          status:
+            description: SealedVolumeStatus defines the observed state of SealedVolume
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}

config/crd/kustomization.yaml

@@ -0,0 +1,21 @@
+# This kustomization.yaml is not intended to be run by itself,
+# since it depends on service name and namespace that are out of this kustomize package.
+# It should be run by config/default
+resources:
+- bases/keyserver.kairos.io_sealedvolumes.yaml
+#+kubebuilder:scaffold:crdkustomizeresource
+
+patchesStrategicMerge:
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix.
+# patches here are for enabling the conversion webhook for each CRD
+#- patches/webhook_in_sealedvolumes.yaml
+#+kubebuilder:scaffold:crdkustomizewebhookpatch
+
+# [CERTMANAGER] To enable cert-manager, uncomment all the sections with [CERTMANAGER] prefix.
+# patches here are for enabling the CA injection for each CRD
+#- patches/cainjection_in_sealedvolumes.yaml
+#+kubebuilder:scaffold:crdkustomizecainjectionpatch
+
+# the following config is for teaching kustomize how to do kustomization for CRDs.
+configurations:
+- kustomizeconfig.yaml

config/crd/kustomizeconfig.yaml

@@ -0,0 +1,19 @@
+# This file is for teaching kustomize how to substitute name and namespace reference in CRD
+nameReference:
+- kind: Service
+  version: v1
+  fieldSpecs:
+  - kind: CustomResourceDefinition
+    version: v1
+    group: apiextensions.k8s.io
+    path: spec/conversion/webhook/clientConfig/service/name
+
+namespace:
+- kind: CustomResourceDefinition
+  version: v1
+  group: apiextensions.k8s.io
+  path: spec/conversion/webhook/clientConfig/service/namespace
+  create: false
+
+varReference:
+- path: metadata/annotations

config/crd/patches/cainjection_in_sealedvolumes.yaml

@@ -0,0 +1,7 @@
+# The following patch adds a directive for certmanager to inject CA into the CRD
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)
+  name: sealedvolumes.keyserver.kairos.io

config/crd/patches/webhook_in_sealedvolumes.yaml

@@ -0,0 +1,16 @@
+# The following patch enables a conversion webhook for the CRD
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: sealedvolumes.keyserver.kairos.io
+spec:
+  conversion:
+    strategy: Webhook
+    webhook:
+      clientConfig:
+        service:
+          namespace: system
+          name: webhook-service
+          path: /convert
+      conversionReviewVersions:
+      - v1

config/default/kustomization.yaml

@@ -0,0 +1,74 @@
+# Adds namespace to all resources.
+namespace: kcrypt-controller-system
+
+# Value of this field is prepended to the
+# names of all resources, e.g. a deployment named
+# "wordpress" becomes "alices-wordpress".
+# Note that it should also match with the prefix (text before '-') of the namespace
+# field above.
+namePrefix: kcrypt-controller-
+
+# Labels to add to all resources and selectors.
+#commonLabels:
+#  someName: someValue
+
+bases:
+- ../crd
+- ../rbac
+- ../manager
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- ../webhook
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'. 'WEBHOOK' components are required.
+#- ../certmanager
+# [PROMETHEUS] To enable prometheus monitor, uncomment all sections with 'PROMETHEUS'.
+#- ../prometheus
+
+patchesStrategicMerge:
+# Protect the /metrics endpoint by putting it behind auth.
+# If you want your controller-manager to expose the /metrics
+# endpoint w/o any authn/z, please comment the following line.
+- manager_auth_proxy_patch.yaml
+
+# Mount the controller config file for loading manager configurations
+# through a ComponentConfig type
+#- manager_config_patch.yaml
+
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- manager_webhook_patch.yaml
+
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'.
+# Uncomment 'CERTMANAGER' sections in crd/kustomization.yaml to enable the CA injection in the admission webhooks.
+# 'CERTMANAGER' needs to be enabled to use ca injection
+#- webhookcainjection_patch.yaml
+
+# the following config is for teaching kustomize how to do var substitution
+vars:
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER' prefix.
+#- name: CERTIFICATE_NAMESPACE # namespace of the certificate CR
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: CERTIFICATE_NAME
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#- name: SERVICE_NAMESPACE # namespace of the service
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: SERVICE_NAME
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service

config/default/manager_auth_proxy_patch.yaml

@@ -0,0 +1,39 @@
+# This patch inject a sidecar container which is a HTTP proxy for the
+# controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: kube-rbac-proxy
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+              - "ALL"
+        image: gcr.io/kubebuilder/kube-rbac-proxy:v0.13.0
+        args:
+        - "--secure-listen-address=0.0.0.0:8443"
+        - "--upstream=http://127.0.0.1:8080/"
+        - "--logtostderr=true"
+        - "--v=0"
+        ports:
+        - containerPort: 8443
+          protocol: TCP
+          name: https
+        resources:
+          limits:
+            cpu: 500m
+            memory: 128Mi
+          requests:
+            cpu: 5m
+            memory: 64Mi
+      - name: manager
+        args:
+        - "--health-probe-bind-address=:8081"
+        - "--metrics-bind-address=127.0.0.1:8080"
+        - "--leader-elect"

config/default/manager_config_patch.yaml

@@ -0,0 +1,20 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager
+        args:
+        - "--config=controller_manager_config.yaml"
+        volumeMounts:
+        - name: manager-config
+          mountPath: /controller_manager_config.yaml
+          subPath: controller_manager_config.yaml
+      volumes:
+      - name: manager-config
+        configMap:
+          name: manager-config

config/dev/kustomization.yaml

@@ -0,0 +1,74 @@
+# Adds namespace to all resources.
+namespace: kcrypt-controller-system
+
+# Value of this field is prepended to the
+# names of all resources, e.g. a deployment named
+# "wordpress" becomes "alices-wordpress".
+# Note that it should also match with the prefix (text before '-') of the namespace
+# field above.
+namePrefix: kcrypt-controller-
+
+# Labels to add to all resources and selectors.
+#commonLabels:
+#  someName: someValue
+
+bases:
+- ../crd
+- ../rbac
+- ../manager
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- ../webhook
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'. 'WEBHOOK' components are required.
+#- ../certmanager
+# [PROMETHEUS] To enable prometheus monitor, uncomment all sections with 'PROMETHEUS'.
+#- ../prometheus
+
+patchesStrategicMerge:
+# Protect the /metrics endpoint by putting it behind auth.
+# If you want your controller-manager to expose the /metrics
+# endpoint w/o any authn/z, please comment the following line.
+- manager_auth_proxy_patch.yaml
+- pull.yaml
+# Mount the controller config file for loading manager configurations
+# through a ComponentConfig type
+#- manager_config_patch.yaml
+
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- manager_webhook_patch.yaml
+
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'.
+# Uncomment 'CERTMANAGER' sections in crd/kustomization.yaml to enable the CA injection in the admission webhooks.
+# 'CERTMANAGER' needs to be enabled to use ca injection
+#- webhookcainjection_patch.yaml
+
+# the following config is for teaching kustomize how to do var substitution
+vars:
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER' prefix.
+#- name: CERTIFICATE_NAMESPACE # namespace of the certificate CR
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: CERTIFICATE_NAME
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#- name: SERVICE_NAMESPACE # namespace of the service
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: SERVICE_NAME
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service

config/dev/manager_auth_proxy_patch.yaml

@@ -0,0 +1,39 @@
+# This patch inject a sidecar container which is a HTTP proxy for the
+# controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: kube-rbac-proxy
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+              - "ALL"
+        image: gcr.io/kubebuilder/kube-rbac-proxy:v0.13.0
+        args:
+        - "--secure-listen-address=0.0.0.0:8443"
+        - "--upstream=http://127.0.0.1:8080/"
+        - "--logtostderr=true"
+        - "--v=0"
+        ports:
+        - containerPort: 8443
+          protocol: TCP
+          name: https
+        resources:
+          limits:
+            cpu: 500m
+            memory: 128Mi
+          requests:
+            cpu: 5m
+            memory: 64Mi
+      - name: manager
+        args:
+        - "--health-probe-bind-address=:8081"
+        - "--metrics-bind-address=127.0.0.1:8080"
+        - "--leader-elect"

config/dev/manager_config_patch.yaml

@@ -0,0 +1,21 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager
+        imagePullPolicy: IfNotPresent
+        args:
+        - "--config=controller_manager_config.yaml"
+        volumeMounts:
+        - name: manager-config
+          mountPath: /controller_manager_config.yaml
+          subPath: controller_manager_config.yaml
+      volumes:
+      - name: manager-config
+        configMap:
+          name: manager-config

config/dev/pull.yaml

@@ -0,0 +1,12 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager
+        imagePullPolicy: IfNotPresent
+

config/manager/controller_manager_config.yaml

@@ -0,0 +1,21 @@
+apiVersion: controller-runtime.sigs.k8s.io/v1alpha1
+kind: ControllerManagerConfig
+health:
+  healthProbeBindAddress: :8081
+metrics:
+  bindAddress: 127.0.0.1:8080
+webhook:
+  port: 9443
+leaderElection:
+  leaderElect: true
+  resourceName: 8fc84668.kairos.io
+# leaderElectionReleaseOnCancel defines if the leader should step down volume
+# when the Manager ends. This requires the binary to immediately end when the
+# Manager is stopped, otherwise, this setting is unsafe. Setting this significantly
+# speeds up voluntary leader transitions as the new leader don't have to wait
+# LeaseDuration time first.
+# In the default scaffold provided, the program ends immediately after
+# the manager stops, so would be fine to enable this option. However,
+# if you are doing or is intended to do any operation such as perform cleanups
+# after the manager stops then its usage might be unsafe.
+# leaderElectionReleaseOnCancel: true

config/manager/kustomization.yaml

@@ -0,0 +1,16 @@
+resources:
+- manager.yaml
+
+generatorOptions:
+  disableNameSuffixHash: true
+
+configMapGenerator:
+- files:
+  - controller_manager_config.yaml
+  name: manager-config
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+images:
+- name: controller
+  newName: controller
+  newTag: latest

config/manager/manager.yaml

@@ -0,0 +1,85 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: system
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+  labels:
+    control-plane: controller-manager
+spec:
+  selector:
+    matchLabels:
+      control-plane: controller-manager
+  replicas: 1
+  template:
+    metadata:
+      annotations:
+        kubectl.kubernetes.io/default-container: manager
+      labels:
+        control-plane: controller-manager
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        # TODO(user): For common cases that do not require escalating privileges
+        # it is recommended to ensure that all your Pods/Containers are restrictive.
+        # More info: https://kubernetes.io/docs/concepts/security/pod-security-standards/#restricted
+        # Please uncomment the following code if your project does NOT have to work on old Kubernetes
+        # versions < 1.19 or on vendors versions which do NOT support this field by default (i.e. Openshift < 4.11 ).
+        # seccompProfile:
+        #   type: RuntimeDefault
+      containers:
+      - command:
+        - /manager
+        args:
+        - --leader-elect
+        image: controller:latest
+        name: manager
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+              - "ALL"
+        livenessProbe:
+          httpGet:
+            path: /healthz
+            port: 8081
+          initialDelaySeconds: 15
+          periodSeconds: 20
+        readinessProbe:
+          httpGet:
+            path: /readyz
+            port: 8081
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        # TODO(user): Configure the resources accordingly based on the project requirements.
+        # More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
+        resources:
+          limits:
+            cpu: 500m
+            memory: 128Mi
+          requests:
+            cpu: 10m
+            memory: 64Mi
+      serviceAccountName: controller-manager
+      terminationGracePeriodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+    labels:
+        control-plane: controller-manager
+    name: kcrypt-escrow-server
+    namespace: system
+spec:
+    type: NodePort
+    ports:
+        - name: wss
+          port: 8082
+          protocol: TCP
+          targetPort: wss

config/manifests/kustomization.yaml

@@ -0,0 +1,27 @@
+# These resources constitute the fully configured set of manifests
+# used to generate the 'manifests/' directory in a bundle.
+resources:
+- bases/kcrypt-controller.clusterserviceversion.yaml
+- ../default
+- ../samples
+- ../scorecard
+
+# [WEBHOOK] To enable webhooks, uncomment all the sections with [WEBHOOK] prefix.
+# Do NOT uncomment sections with prefix [CERTMANAGER], as OLM does not support cert-manager.
+# These patches remove the unnecessary "cert" volume and its manager container volumeMount.
+#patchesJson6902:
+#- target:
+#    group: apps
+#    version: v1
+#    kind: Deployment
+#    name: controller-manager
+#    namespace: system
+#  patch: |-
+#    # Remove the manager container's "cert" volumeMount, since OLM will create and mount a set of certs.
+#    # Update the indices in this path if adding or removing containers/volumeMounts in the manager's Deployment.
+#    - op: remove
+#      path: /spec/template/spec/containers/1/volumeMounts/0
+#    # Remove the "cert" volume, since OLM will create and mount a set of certs.
+#    # Update the indices in this path if adding or removing volumes in the manager's Deployment.
+#    - op: remove
+#      path: /spec/template/spec/volumes/0

config/prometheus/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+- monitor.yaml

config/prometheus/monitor.yaml

@@ -0,0 +1,20 @@
+
+# Prometheus Monitor Service (Metrics)
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: controller-manager-metrics-monitor
+  namespace: system
+spec:
+  endpoints:
+    - path: /metrics
+      port: https
+      scheme: https
+      bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
+      tlsConfig:
+        insecureSkipVerify: true
+  selector:
+    matchLabels:
+      control-plane: controller-manager

config/rbac/auth_proxy_client_clusterrole.yaml

@@ -0,0 +1,9 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: metrics-reader
+rules:
+- nonResourceURLs:
+  - "/metrics"
+  verbs:
+  - get

config/rbac/auth_proxy_role.yaml

@@ -0,0 +1,17 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: proxy-role
+rules:
+- apiGroups:
+  - authentication.k8s.io
+  resources:
+  - tokenreviews
+  verbs:
+  - create
+- apiGroups:
+  - authorization.k8s.io
+  resources:
+  - subjectaccessreviews
+  verbs:
+  - create

config/rbac/auth_proxy_role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: proxy-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: proxy-role
+subjects:
+- kind: ServiceAccount
+  name: controller-manager
+  namespace: system

config/rbac/auth_proxy_service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: controller-manager-metrics-service
+  namespace: system
+spec:
+  ports:
+  - name: https
+    port: 8443
+    protocol: TCP
+    targetPort: https
+  selector:
+    control-plane: controller-manager

config/rbac/kustomization.yaml

@@ -0,0 +1,18 @@
+resources:
+# All RBAC will be applied under this service account in
+# the deployment namespace. You may comment out this resource
+# if your manager will use a service account that exists at
+# runtime. Be sure to update RoleBinding and ClusterRoleBinding
+# subjects if changing service account names.
+- service_account.yaml
+- role.yaml
+- role_binding.yaml
+- leader_election_role.yaml
+- leader_election_role_binding.yaml
+# Comment the following 4 lines if you want to disable
+# the auth proxy (https://github.com/brancz/kube-rbac-proxy)
+# which protects your /metrics endpoint.
+- auth_proxy_service.yaml
+- auth_proxy_role.yaml
+- auth_proxy_role_binding.yaml
+- auth_proxy_client_clusterrole.yaml

config/rbac/leader_election_role.yaml

@@ -0,0 +1,37 @@
+# permissions to do leader election.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: leader-election-role
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - list
+  - watch
+  - create
+  - update
+  - patch
+  - delete
+- apiGroups:
+  - coordination.k8s.io
+  resources:
+  - leases
+  verbs:
+  - get
+  - list
+  - watch
+  - create
+  - update
+  - patch
+  - delete
+- apiGroups:
+  - ""
+  resources:
+  - events
+  verbs:
+  - create
+  - patch

config/rbac/leader_election_role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: leader-election-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: leader-election-role
+subjects:
+- kind: ServiceAccount
+  name: controller-manager
+  namespace: system

config/rbac/role.yaml

@@ -0,0 +1,42 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  creationTimestamp: null
+  name: manager-role
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - secrets
+  verbs:
+  - create
+  - get
+  - list
+  - watch
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes/finalizers
+  verbs:
+  - update
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes/status
+  verbs:
+  - get
+  - patch
+  - update

config/rbac/role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: manager-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: manager-role
+subjects:
+- kind: ServiceAccount
+  name: controller-manager
+  namespace: system

config/rbac/sealedvolume_editor_role.yaml

@@ -0,0 +1,24 @@
+# permissions for end users to edit sealedvolumes.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: sealedvolume-editor-role
+rules:
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes/status
+  verbs:
+  - get

config/rbac/sealedvolume_viewer_role.yaml

@@ -0,0 +1,20 @@
+# permissions for end users to view sealedvolumes.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: sealedvolume-viewer-role
+rules:
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes
+  verbs:
+  - get
+  - list
+  - watch
+- apiGroups:
+  - keyserver.kairos.io
+  resources:
+  - sealedvolumes/status
+  verbs:
+  - get

config/rbac/service_account.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: controller-manager
+  namespace: system

config/samples/keyserver_v1alpha1_sealedvolume.yaml

@@ -0,0 +1,6 @@
+apiVersion: keyserver.kairos.io/v1alpha1
+kind: SealedVolume
+metadata:
+  name: sealedvolume-sample
+spec:
+  # TODO(user): Add fields here

config/samples/kustomization.yaml

@@ -0,0 +1,4 @@
+## Append samples you want in your CSV to this file as resources ##
+resources:
+- keyserver_v1alpha1_sealedvolume.yaml
+#+kubebuilder:scaffold:manifestskustomizesamples

config/scorecard/bases/config.yaml

@@ -0,0 +1,7 @@
+apiVersion: scorecard.operatorframework.io/v1alpha3
+kind: Configuration
+metadata:
+  name: config
+stages:
+- parallel: true
+  tests: []

config/scorecard/kustomization.yaml

@@ -0,0 +1,16 @@
+resources:
+- bases/config.yaml
+patchesJson6902:
+- path: patches/basic.config.yaml
+  target:
+    group: scorecard.operatorframework.io
+    version: v1alpha3
+    kind: Configuration
+    name: config
+- path: patches/olm.config.yaml
+  target:
+    group: scorecard.operatorframework.io
+    version: v1alpha3
+    kind: Configuration
+    name: config
+#+kubebuilder:scaffold:patchesJson6902

config/scorecard/patches/basic.config.yaml

@@ -0,0 +1,10 @@
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - basic-check-spec
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: basic
+      test: basic-check-spec-test

config/scorecard/patches/olm.config.yaml

@@ -0,0 +1,50 @@
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - olm-bundle-validation
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: olm
+      test: olm-bundle-validation-test
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - olm-crds-have-validation
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: olm
+      test: olm-crds-have-validation-test
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - olm-crds-have-resources
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: olm
+      test: olm-crds-have-resources-test
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - olm-spec-descriptors
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: olm
+      test: olm-spec-descriptors-test
+- op: add
+  path: /stages/0/tests/-
+  value:
+    entrypoint:
+    - scorecard-test
+    - olm-status-descriptors
+    image: quay.io/operator-framework/scorecard-test:v1.23.0
+    labels:
+      suite: olm
+      test: olm-status-descriptors-test

controllers/sealedvolume_controller.go

@@ -0,0 +1,63 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controllers
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+
+	keyserverv1alpha1 "github.com/kairos-io/kairos-challenger/api/v1alpha1"
+)
+
+// SealedVolumeReconciler reconciles a SealedVolume object
+type SealedVolumeReconciler struct {
+	client.Client
+	Scheme *runtime.Scheme
+}
+
+//+kubebuilder:rbac:groups=keyserver.kairos.io,resources=sealedvolumes,verbs=get;list;watch;create;update;patch;delete
+//+kubebuilder:rbac:groups=keyserver.kairos.io,resources=sealedvolumes/status,verbs=get;update;patch
+//+kubebuilder:rbac:groups=keyserver.kairos.io,resources=sealedvolumes/finalizers,verbs=update
+//+kubebuilder:rbac:groups="",resources=secrets,verbs=create;get;list;watch
+
+// Reconcile is part of the main kubernetes reconciliation loop which aims to
+// move the current state of the cluster closer to the desired state.
+// TODO(user): Modify the Reconcile function to compare the state specified by
+// the SealedVolume object against the actual cluster state, and then
+// perform operations to make the cluster state reflect the state specified by
+// the user.
+//
+// For more details, check Reconcile and its Result here:
+// - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.12.2/pkg/reconcile
+func (r *SealedVolumeReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
+	_ = log.FromContext(ctx)
+
+	// TODO(user): your logic here
+
+	return ctrl.Result{}, nil
+}
+
+// SetupWithManager sets up the controller with the Manager.
+func (r *SealedVolumeReconciler) SetupWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewControllerManagedBy(mgr).
+		For(&keyserverv1alpha1.SealedVolume{}).
+		Complete(r)
+}

controllers/suite_test.go

@@ -0,0 +1,83 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controllers
+
+import (
+	"path/filepath"
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"k8s.io/client-go/kubernetes/scheme"
+	"k8s.io/client-go/rest"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/envtest"
+	"sigs.k8s.io/controller-runtime/pkg/envtest/printer"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+
+	keyserverv1alpha1 "github.com/kairos-io/kairos-challenger/api/v1alpha1"
+	//+kubebuilder:scaffold:imports
+)
+
+// These tests use Ginkgo (BDD-style Go testing framework). Refer to
+// http://onsi.github.io/ginkgo/ to learn more about Ginkgo.
+
+var cfg *rest.Config
+var k8sClient client.Client
+var testEnv *envtest.Environment
+
+func TestAPIs(t *testing.T) {
+	RegisterFailHandler(Fail)
+
+	RunSpecsWithDefaultAndCustomReporters(t,
+		"Controller Suite",
+		[]Reporter{printer.NewlineReporter{}})
+}
+
+var _ = BeforeSuite(func() {
+	logf.SetLogger(zap.New(zap.WriteTo(GinkgoWriter), zap.UseDevMode(true)))
+
+	By("bootstrapping test environment")
+	testEnv = &envtest.Environment{
+		CRDDirectoryPaths:     []string{filepath.Join("..", "config", "crd", "bases")},
+		ErrorIfCRDPathMissing: true,
+	}
+
+	var err error
+	// cfg is defined in this file globally.
+	cfg, err = testEnv.Start()
+	Expect(err).NotTo(HaveOccurred())
+	Expect(cfg).NotTo(BeNil())
+
+	err = keyserverv1alpha1.AddToScheme(scheme.Scheme)
+	Expect(err).NotTo(HaveOccurred())
+
+	//+kubebuilder:scaffold:scheme
+
+	k8sClient, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
+	Expect(err).NotTo(HaveOccurred())
+	Expect(k8sClient).NotTo(BeNil())
+
+}, 60)
+
+var _ = AfterSuite(func() {
+	By("tearing down the test environment")
+	err := testEnv.Stop()
+	Expect(err).NotTo(HaveOccurred())
+})

earthly.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker run --privileged -v /var/run/docker.sock:/var/run/docker.sock --rm -t -v $(pwd):/workspace -v earthly-tmp:/tmp/earthly:rw earthly/earthly:v0.6.21 --allow-privileged $@

examples/sealedvolume.yaml

@@ -0,0 +1,22 @@
+# echo '{ "data": "{ \\"label\\": \\"COS_PERSISTENT\\" }"}' | sudo -E WSS_SERVER="http://localhost:8082/challenge" ./challenger "discovery.password"
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysecret
+  namespace: default
+type: Opaque
+stringData:
+  pass: "awesome-passphrase"
+---
+apiVersion: keyserver.kairos.io/v1alpha1
+kind: SealedVolume
+metadata:
+    name: test
+    namespace: default
+spec:
+  TPMHash: "something"
+  partitionSecrets:
+    LABEL:
+      name: mysecret
+      path: pass
+  quarantined: false

go.mod

@@ -0,0 +1,144 @@
+module github.com/kairos-io/kairos-challenger
+
+go 1.20
+
+require (
+	github.com/google/uuid v1.3.0
+	github.com/gorilla/websocket v1.5.0
+	github.com/jaypipes/ghw v0.9.0
+	github.com/kairos-io/kairos v1.24.3-56.0.20230208235509-4d28f3b87f60
+	github.com/kairos-io/kcrypt v0.5.0
+	github.com/kairos-io/tpm-helpers v0.0.0-20230119140150-3fa97128ef6b
+	github.com/mudler/go-pluggable v0.0.0-20230126220627-7710299a0ae5
+	github.com/mudler/go-processmanager v0.0.0-20220724164624-c45b5c61312d
+	github.com/mudler/yip v1.0.0
+	github.com/onsi/ginkgo v1.16.5
+	github.com/onsi/ginkgo/v2 v2.8.1
+	github.com/onsi/gomega v1.26.0
+	github.com/pkg/errors v0.9.1
+	github.com/spectrocloud/peg v0.0.0-20230214140930-4d6672f825b2
+	gopkg.in/yaml.v3 v3.0.1
+	k8s.io/api v0.24.2
+	k8s.io/apimachinery v0.24.2
+	k8s.io/client-go v0.24.2
+	sigs.k8s.io/controller-runtime v0.12.2
+)
+
+require (
+	atomicgo.dev/cursor v0.1.1 // indirect
+	atomicgo.dev/keyboard v0.2.9 // indirect
+	cloud.google.com/go v0.93.3 // indirect
+	github.com/Azure/go-autorest v14.2.0+incompatible // indirect
+	github.com/Azure/go-autorest/autorest v0.11.18 // indirect
+	github.com/Azure/go-autorest/autorest/adal v0.9.13 // indirect
+	github.com/Azure/go-autorest/autorest/date v0.3.0 // indirect
+	github.com/Azure/go-autorest/logger v0.2.1 // indirect
+	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
+	github.com/Masterminds/goutils v1.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.1.1 // indirect
+	github.com/Masterminds/sprig/v3 v3.2.2 // indirect
+	github.com/PuerkitoBio/purell v1.1.1 // indirect
+	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
+	github.com/StackExchange/wmi v1.2.1 // indirect
+	github.com/avast/retry-go v3.0.0+incompatible // indirect
+	github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bramvdbogaerde/go-scp v1.2.1 // indirect
+	github.com/cavaliergopher/grab/v3 v3.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/chuckpreslar/emission v0.0.0-20170206194824-a7ddd980baf9 // indirect
+	github.com/codingsince1985/checksum v1.2.6 // indirect
+	github.com/containerd/console v1.0.3 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/denisbrodbeck/machineid v1.0.1 // indirect
+	github.com/emicklei/go-restful v2.9.5+incompatible // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/folbricht/tpmk v0.1.2-0.20230104073416-f20b20c289d7 // indirect
+	github.com/form3tech-oss/jwt-go v3.2.5+incompatible // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/ghodss/yaml v1.0.0 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/zapr v1.2.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-openapi/jsonpointer v0.19.5 // indirect
+	github.com/go-openapi/jsonreference v0.19.5 // indirect
+	github.com/go-openapi/swag v0.19.14 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/certificate-transparency-go v1.1.4 // indirect
+	github.com/google/gnostic v0.5.7-v3refs // indirect
+	github.com/google/go-attestation v0.4.4-0.20220404204839-8820d49b18d9 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-tpm v0.3.3 // indirect
+	github.com/google/go-tpm-tools v0.3.10 // indirect
+	github.com/google/go-tspi v0.3.0 // indirect
+	github.com/google/gofuzz v1.1.0 // indirect
+	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
+	github.com/gookit/color v1.5.2 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/huandu/xstrings v1.3.2 // indirect
+	github.com/imdario/mergo v0.3.13 // indirect
+	github.com/ipfs/go-log v1.0.5 // indirect
+	github.com/ipfs/go-log/v2 v2.5.1 // indirect
+	github.com/itchyny/gojq v0.12.11 // indirect
+	github.com/itchyny/timefmt-go v0.1.5 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/lithammer/fuzzysearch v1.1.5 // indirect
+	github.com/mailru/easyjson v0.7.6 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
+	github.com/nxadm/tail v1.4.8 // indirect
+	github.com/opentracing/opentracing-go v1.2.0 // indirect
+	github.com/phayes/freeport v0.0.0-20220201140144-74d24b5ae9f5 // indirect
+	github.com/prometheus/client_golang v1.13.0 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/pterm/pterm v0.12.54 // indirect
+	github.com/qeesung/image2ascii v1.0.1 // indirect
+	github.com/rivo/uniseg v0.4.3 // indirect
+	github.com/shopspring/decimal v1.3.1 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stretchr/testify v1.8.1 // indirect
+	github.com/twpayne/go-vfs v1.7.2 // indirect
+	github.com/wayneashleyberry/terminal-dimensions v1.1.0 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	go.uber.org/atomic v1.10.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	go.uber.org/zap v1.24.0 // indirect
+	golang.org/x/crypto v0.6.0 // indirect
+	golang.org/x/net v0.6.0 // indirect
+	golang.org/x/oauth2 v0.4.0 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/term v0.5.0 // indirect
+	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/time v0.0.0-20220411224347-583f2d630306 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
+	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	howett.net/plist v1.0.0 // indirect
+	k8s.io/apiextensions-apiserver v0.24.2 // indirect
+	k8s.io/component-base v0.24.2 // indirect
+	k8s.io/klog/v2 v2.80.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42 // indirect
+	k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 // indirect
+	sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)

hack/boilerplate.go.txt

@@ -0,0 +1,15 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/

main.go

@@ -0,0 +1,130 @@
+/*
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"context"
+	"flag"
+	"os"
+
+	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
+	// to ensure that exec-entrypoint and run can make use of them.
+	"k8s.io/client-go/kubernetes"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/healthz"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+
+	keyserverv1alpha1 "github.com/kairos-io/kairos-challenger/api/v1alpha1"
+	"github.com/kairos-io/kairos-challenger/controllers"
+	"github.com/kairos-io/kairos-challenger/pkg/challenger"
+	//+kubebuilder:scaffold:imports
+)
+
+var (
+	scheme   = runtime.NewScheme()
+	setupLog = ctrl.Log.WithName("setup")
+)
+
+func init() {
+	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
+
+	utilruntime.Must(keyserverv1alpha1.AddToScheme(scheme))
+	//+kubebuilder:scaffold:scheme
+}
+
+func main() {
+	var metricsAddr string
+	var enableLeaderElection bool
+	var probeAddr string
+	var challengerAddr string
+	var namespace string
+	flag.StringVar(&namespace, "namespace", "kcrypt", "The namespace the challenger will read secrets from.")
+	flag.StringVar(&challengerAddr, "challenger-bind-address", ":8082", "The address the challenger server endpoint binds to.")
+	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
+	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
+	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
+		"Enable leader election for controller manager. "+
+			"Enabling this will ensure there is only one active controller manager.")
+	opts := zap.Options{
+		Development: true,
+	}
+	opts.BindFlags(flag.CommandLine)
+	flag.Parse()
+
+	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+
+	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
+		Scheme:                 scheme,
+		MetricsBindAddress:     metricsAddr,
+		Port:                   9443,
+		HealthProbeBindAddress: probeAddr,
+		LeaderElection:         enableLeaderElection,
+		LeaderElectionID:       "8fc84668.kairos.io",
+		// LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily
+		// when the Manager ends. This requires the binary to immediately end when the
+		// Manager is stopped, otherwise, this setting is unsafe. Setting this significantly
+		// speeds up voluntary leader transitions as the new leader don't have to wait
+		// LeaseDuration time first.
+		//
+		// In the default scaffold provided, the program ends immediately after
+		// the manager stops, so would be fine to enable this option. However,
+		// if you are doing or is intended to do any operation such as perform cleanups
+		// after the manager stops then its usage might be unsafe.
+		// LeaderElectionReleaseOnCancel: true,
+	})
+	if err != nil {
+		setupLog.Error(err, "unable to start manager")
+		os.Exit(1)
+	}
+
+	reconciler := &controllers.SealedVolumeReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}
+	if err = reconciler.SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "SealedVolume")
+		os.Exit(1)
+	}
+	//+kubebuilder:scaffold:builder
+
+	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up health check")
+		os.Exit(1)
+	}
+	if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up ready check")
+		os.Exit(1)
+	}
+	clientset, err := kubernetes.NewForConfig(mgr.GetConfig())
+	if err != nil {
+		setupLog.Error(err, "unable to get clientset")
+		os.Exit(1)
+	}
+
+	go challenger.Start(context.Background(), clientset, reconciler, namespace, challengerAddr)
+
+	setupLog.Info("starting manager")
+	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
+		setupLog.Error(err, "problem running manager")
+		os.Exit(1)
+	}
+}

pkg/challenger/challenger.go

@@ -0,0 +1,336 @@
+package challenger
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"time"
+
+	keyserverv1alpha1 "github.com/kairos-io/kairos-challenger/api/v1alpha1"
+	"github.com/kairos-io/kairos-challenger/pkg/constants"
+	"github.com/kairos-io/kairos-challenger/pkg/payload"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+
+	"github.com/kairos-io/kairos-challenger/controllers"
+	tpm "github.com/kairos-io/tpm-helpers"
+	corev1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+
+	"github.com/gorilla/websocket"
+)
+
+// PassphraseRequestData is a struct that holds all the information needed in
+// order to lookup a passphrase for a specific tpm hash.
+type PassphraseRequestData struct {
+	TPMHash    string
+	Label      string
+	DeviceName string
+	UUID       string
+}
+
+type SealedVolumeData struct {
+	Quarantined bool
+	SecretName  string
+	SecretPath  string
+
+	PartitionLabel string
+	VolumeName     string
+}
+
+var upgrader = websocket.Upgrader{
+	ReadBufferSize:  1024,
+	WriteBufferSize: 1024,
+}
+
+func cleanKubeName(s string) (d string) {
+	d = strings.ReplaceAll(s, "_", "-")
+	d = strings.ToLower(d)
+	return
+}
+
+func (s SealedVolumeData) DefaultSecret() (string, string) {
+	secretName := fmt.Sprintf("%s-%s", s.VolumeName, s.PartitionLabel)
+	secretPath := "passphrase"
+	if s.SecretName != "" {
+		secretName = s.SecretName
+	}
+	if s.SecretPath != "" {
+		secretPath = s.SecretPath
+	}
+	return cleanKubeName(secretName), cleanKubeName(secretPath)
+}
+
+func writeRead(conn *websocket.Conn, input []byte) ([]byte, error) {
+	writer, err := conn.NextWriter(websocket.BinaryMessage)
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := writer.Write(input); err != nil {
+		return nil, err
+	}
+
+	if err := writer.Close(); err != nil {
+		return nil, err
+	}
+
+	_, reader, err := conn.NextReader()
+	if err != nil {
+		return nil, err
+	}
+
+	return ioutil.ReadAll(reader)
+}
+
+func getPubHash(token string) (string, error) {
+	ek, _, err := tpm.GetAttestationData(token)
+	if err != nil {
+		return "", err
+	}
+
+	return tpm.DecodePubHash(ek)
+}
+
+func Start(ctx context.Context, kclient *kubernetes.Clientset, reconciler *controllers.SealedVolumeReconciler, namespace, address string) {
+	fmt.Println("Challenger started at", address)
+	s := http.Server{
+		Addr:         address,
+		ReadTimeout:  10 * time.Second,
+		WriteTimeout: 10 * time.Second,
+	}
+
+	m := http.NewServeMux()
+
+	errorMessage := func(writer io.WriteCloser, errMsg string) {
+		err := json.NewEncoder(writer).Encode(payload.Data{Error: errMsg})
+		if err != nil {
+			fmt.Println("error encoding the response to json", err.Error())
+		}
+		fmt.Println(errMsg)
+	}
+
+	m.HandleFunc("/postPass", func(w http.ResponseWriter, r *http.Request) {
+		conn, _ := upgrader.Upgrade(w, r, nil) // error ignored for sake of simplicity
+		for {
+
+			fmt.Println("Receiving passphrase")
+			if err := tpm.AuthRequest(r, conn); err != nil {
+				fmt.Println("error", err.Error())
+				return
+			}
+			defer conn.Close()
+			fmt.Println("[Receiving passphrase] auth succeeded")
+
+			token := r.Header.Get("Authorization")
+
+			hashEncoded, err := getPubHash(token)
+			if err != nil {
+				fmt.Println("error decoding pubhash", err.Error())
+				return
+			}
+			fmt.Println("[Receiving passphrase] pubhash", hashEncoded)
+
+			label := r.Header.Get("label")
+			name := r.Header.Get("name")
+			uuid := r.Header.Get("uuid")
+			v := &payload.Data{}
+
+			volumeList := &keyserverv1alpha1.SealedVolumeList{}
+			if err := reconciler.List(ctx, volumeList, &client.ListOptions{Namespace: namespace}); err != nil {
+				fmt.Println("Failed listing volumes")
+				fmt.Println(err)
+				continue
+			}
+
+			sealedVolumeData := findVolumeFor(PassphraseRequestData{
+				TPMHash:    hashEncoded,
+				Label:      label,
+				DeviceName: name,
+				UUID:       uuid,
+			}, volumeList)
+
+			if sealedVolumeData == nil {
+				fmt.Println("No TPM Hash found for", hashEncoded)
+				conn.Close()
+				return
+			}
+
+			if err := conn.ReadJSON(v); err != nil {
+				fmt.Println("error", err.Error())
+				return
+			}
+
+			if v.HasPassphrase() && !v.HasError() {
+				secretName, secretPath := sealedVolumeData.DefaultSecret()
+				_, err := kclient.CoreV1().Secrets(namespace).Get(ctx, secretName, v1.GetOptions{})
+				if err != nil {
+					if !apierrors.IsNotFound(err) {
+						fmt.Printf("Failed getting secret: %s\n", err.Error())
+						continue
+					}
+
+					secret := corev1.Secret{
+						TypeMeta: v1.TypeMeta{
+							Kind:       "Secret",
+							APIVersion: "apps/v1",
+						},
+						ObjectMeta: v1.ObjectMeta{
+							Name:      secretName,
+							Namespace: namespace,
+						},
+						StringData: map[string]string{
+							secretPath:               v.Passphrase,
+							constants.GeneratedByKey: v.GeneratedBy,
+						},
+						Type: "Opaque",
+					}
+					_, err := kclient.CoreV1().Secrets(namespace).Create(ctx, &secret, v1.CreateOptions{})
+					if err != nil {
+						fmt.Println("failed during secret creation:", err.Error())
+					}
+				} else {
+					fmt.Println("Posted for already existing secret - ignoring")
+				}
+			} else {
+				fmt.Println("Invalid answer from client: doesn't contain any passphrase")
+			}
+		}
+	})
+
+	m.HandleFunc("/getPass", func(w http.ResponseWriter, r *http.Request) {
+		conn, _ := upgrader.Upgrade(w, r, nil) // error ignored for sake of simplicity
+
+		for {
+			fmt.Println("Received connection")
+			volumeList := &keyserverv1alpha1.SealedVolumeList{}
+			if err := reconciler.List(ctx, volumeList, &client.ListOptions{Namespace: namespace}); err != nil {
+				fmt.Println("Failed listing volumes")
+				fmt.Println(err)
+				continue
+			}
+
+			token := r.Header.Get("Authorization")
+			label := r.Header.Get("label")
+			name := r.Header.Get("name")
+			uuid := r.Header.Get("uuid")
+
+			if err := tpm.AuthRequest(r, conn); err != nil {
+				fmt.Println("error validating challenge", err.Error())
+				return
+			}
+
+			hashEncoded, err := getPubHash(token)
+			if err != nil {
+				fmt.Println("error decoding pubhash", err.Error())
+				return
+			}
+
+			sealedVolumeData := findVolumeFor(PassphraseRequestData{
+				TPMHash:    hashEncoded,
+				Label:      label,
+				DeviceName: name,
+				UUID:       uuid,
+			}, volumeList)
+
+			if sealedVolumeData == nil {
+				writer, _ := conn.NextWriter(websocket.BinaryMessage)
+				errorMessage(writer, fmt.Sprintf("Invalid hash: %s", hashEncoded))
+				conn.Close()
+				return
+			}
+
+			writer, _ := conn.NextWriter(websocket.BinaryMessage)
+			if !sealedVolumeData.Quarantined {
+				secretName, secretPath := sealedVolumeData.DefaultSecret()
+
+				// 1. The admin sets a specific cleartext password from Kube manager
+				//      SealedVolume -> with a secret .
+				// 2. The admin just adds a SealedVolume associated with a TPM Hash ( you don't provide any passphrase )
+				// 3. There is no challenger server at all (offline mode)
+				//
+				secret, err := kclient.CoreV1().Secrets(namespace).Get(ctx, secretName, v1.GetOptions{})
+				if err == nil {
+					passphrase := secret.Data[secretPath]
+					generatedBy := secret.Data[constants.GeneratedByKey]
+
+					p := payload.Data{Passphrase: string(passphrase), GeneratedBy: string(generatedBy)}
+					err = json.NewEncoder(writer).Encode(p)
+					if err != nil {
+						fmt.Println("error encoding the passphrase to json", err.Error(), string(passphrase))
+					}
+					if err = writer.Close(); err != nil {
+						fmt.Println("error closing the writer", err.Error())
+						return
+					}
+					if err = conn.Close(); err != nil {
+						fmt.Println("error closing the connection", err.Error())
+						return
+					}
+
+					return
+				} else {
+					errorMessage(writer, fmt.Sprintf("No secret found for %s and %s", hashEncoded, sealedVolumeData.PartitionLabel))
+				}
+			} else {
+				errorMessage(writer, fmt.Sprintf("quarantined: %s", sealedVolumeData.PartitionLabel))
+				if err = conn.Close(); err != nil {
+					fmt.Println("error closing the connection", err.Error())
+					return
+				}
+				return
+			}
+		}
+	},
+	)
+
+	s.Handler = m
+
+	go func() {
+		err := s.ListenAndServe()
+		if err != nil && err != http.ErrServerClosed {
+			panic(err)
+		}
+	}()
+
+	go func() {
+		<-ctx.Done()
+		s.Shutdown(ctx)
+	}()
+}
+
+func findVolumeFor(requestData PassphraseRequestData, volumeList *keyserverv1alpha1.SealedVolumeList) *SealedVolumeData {
+	for _, v := range volumeList.Items {
+		if requestData.TPMHash == v.Spec.TPMHash {
+			for _, p := range v.Spec.Partitions {
+				deviceNameMatches := requestData.DeviceName != "" && p.DeviceName == requestData.DeviceName
+				uuidMatches := requestData.UUID != "" && p.UUID == requestData.UUID
+				labelMatches := requestData.Label != "" && p.Label == requestData.Label
+				secretName := ""
+				if p.Secret != nil && p.Secret.Name != "" {
+					secretName = p.Secret.Name
+				}
+				secretPath := ""
+				if p.Secret != nil && p.Secret.Path != "" {
+					secretPath = p.Secret.Path
+				}
+				if labelMatches || uuidMatches || deviceNameMatches {
+					return &SealedVolumeData{
+						Quarantined:    v.Spec.Quarantined,
+						SecretName:     secretName,
+						SecretPath:     secretPath,
+						VolumeName:     v.Name,
+						PartitionLabel: p.Label,
+					}
+				}
+			}
+		}
+	}
+
+	return nil
+}

pkg/challenger/challenger_test.go

@@ -0,0 +1,153 @@
+// [✓] Setup a cluster
+// [✓] install crds on it
+// - run the server locally
+// - make requests to the server to see if we can get passphrases back
+package challenger
+
+import (
+	keyserverv1alpha1 "github.com/kairos-io/kairos-challenger/api/v1alpha1"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("challenger", func() {
+	Describe("findSecretFor", func() {
+		var requestData PassphraseRequestData
+		var volumeList *keyserverv1alpha1.SealedVolumeList
+
+		BeforeEach(func() {
+			requestData = PassphraseRequestData{
+				TPMHash:    "1234",
+				DeviceName: "/dev/sda1",
+				UUID:       "sda1_uuid",
+				Label:      "COS_PERSISTENT",
+			}
+		})
+
+		When("a sealedvolume matching the label exists", func() {
+			BeforeEach(func() {
+				volumeList = volumeListWithPartitionSpec(
+					keyserverv1alpha1.PartitionSpec{
+						Label:      requestData.Label,
+						DeviceName: "not_matching",
+						UUID:       "not_matching",
+						Secret: &keyserverv1alpha1.SecretSpec{
+							Name: "the_secret",
+							Path: "the_path",
+						}})
+			})
+
+			It("returns the sealed volume data", func() {
+				volumeData := findVolumeFor(requestData, volumeList)
+				Expect(volumeData).ToNot(BeNil())
+				Expect(volumeData.Quarantined).To(BeFalse())
+				Expect(volumeData.SecretName).To(Equal("the_secret"))
+				Expect(volumeData.SecretPath).To(Equal("the_path"))
+			})
+		})
+
+		When("a sealedvolume with empty field exists", func() {
+			BeforeEach(func() {
+				volumeList = volumeListWithPartitionSpec(
+					keyserverv1alpha1.PartitionSpec{
+						Label:      "",
+						DeviceName: "not_matching",
+						UUID:       "not_matching",
+						Secret: &keyserverv1alpha1.SecretSpec{
+							Name: "the_secret",
+							Path: "the_path",
+						}})
+
+				requestData = PassphraseRequestData{
+					TPMHash:    "1234",
+					Label:      "",
+					DeviceName: "/dev/sda1",
+					UUID:       "sda1_uuid",
+				}
+			})
+
+			It("doesn't match a request with an empty field", func() {
+				volumeData := findVolumeFor(requestData, volumeList)
+				Expect(volumeData).To(BeNil())
+			})
+		})
+
+		When("a sealedvolume matching the device name exists", func() {
+			BeforeEach(func() {
+				volumeList = volumeListWithPartitionSpec(
+					keyserverv1alpha1.PartitionSpec{
+						Label:      "not_matching",
+						DeviceName: requestData.DeviceName,
+						UUID:       "not_matching",
+						Secret: &keyserverv1alpha1.SecretSpec{
+							Name: "the_secret",
+							Path: "the_path",
+						}})
+			})
+
+			It("returns the sealed volume data", func() {
+				volumeData := findVolumeFor(requestData, volumeList)
+				Expect(volumeData).ToNot(BeNil())
+				Expect(volumeData.Quarantined).To(BeFalse())
+				Expect(volumeData.SecretName).To(Equal("the_secret"))
+				Expect(volumeData.SecretPath).To(Equal("the_path"))
+			})
+		})
+
+		When("a sealedvolume matching the UUID exists", func() {
+			BeforeEach(func() {
+				volumeList = volumeListWithPartitionSpec(
+					keyserverv1alpha1.PartitionSpec{
+						Label:      "not_matching",
+						DeviceName: "not_matching",
+						UUID:       requestData.UUID,
+						Secret: &keyserverv1alpha1.SecretSpec{
+							Name: "the_secret",
+							Path: "the_path",
+						}})
+			})
+
+			It("returns the sealed volume data", func() {
+				volumeData := findVolumeFor(requestData, volumeList)
+				Expect(volumeData).ToNot(BeNil())
+				Expect(volumeData.Quarantined).To(BeFalse())
+				Expect(volumeData.SecretName).To(Equal("the_secret"))
+				Expect(volumeData.SecretPath).To(Equal("the_path"))
+			})
+		})
+
+		When("a matching sealedvolume doesn't exist", func() {
+			BeforeEach(func() {
+				volumeList = volumeListWithPartitionSpec(
+					keyserverv1alpha1.PartitionSpec{
+						Label:      "not_matching",
+						DeviceName: "not_matching",
+						UUID:       "not_matching",
+						Secret: &keyserverv1alpha1.SecretSpec{
+							Name: "the_secret",
+							Path: "the_path",
+						}})
+			})
+
+			It("returns nil sealedVolumeData", func() {
+				volumeData := findVolumeFor(requestData, volumeList)
+				Expect(volumeData).To(BeNil())
+			})
+		})
+	})
+})
+
+func volumeListWithPartitionSpec(partitionSpec keyserverv1alpha1.PartitionSpec) *keyserverv1alpha1.SealedVolumeList {
+	return &keyserverv1alpha1.SealedVolumeList{
+		Items: []keyserverv1alpha1.SealedVolume{
+			{Spec: keyserverv1alpha1.SealedVolumeSpec{
+				TPMHash: "1234",
+				Partitions: []keyserverv1alpha1.PartitionSpec{
+					partitionSpec,
+				},
+				Quarantined: false,
+			},
+			},
+		},
+	}
+}

pkg/challenger/suite_test.go

@@ -0,0 +1,13 @@
+package challenger_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestEpinio(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Kcrypt challenger suite")
+}

pkg/constants/secret.go

@@ -0,0 +1,4 @@
+package constants
+
+const TPMSecret = "tpm"
+const GeneratedByKey = "generated_by"

pkg/payload/payload.go

@@ -0,0 +1,19 @@
+package payload
+
+type Data struct {
+	Passphrase  string `json:"passphrase"`
+	Error       string `json:"error"`
+	GeneratedBy string `json:"generated_by"`
+}
+
+func (d Data) HasError() bool {
+	return d.Error != ""
+}
+
+func (d Data) HasPassphrase() bool {
+	return d.Passphrase != ""
+}
+
+func (d Data) HasBeenGenerated() bool {
+	return d.GeneratedBy != ""
+}

scripts/e2e-tests.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+set -e
+
+# This scripts prepares a cluster where we install the kcrypt CRDs.
+# This is where sealed volumes are created.
+
+GINKGO_NODES="${GINKGO_NODES:-1}"
+K3S_IMAGE="rancher/k3s:v1.26.1-k3s1"
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+CLUSTER_NAME=$(echo $RANDOM | md5sum | head -c 10; echo;)
+export KUBECONFIG=$(mktemp)
+
+# https://unix.stackexchange.com/a/423052
+getFreePort() {
+  echo $(comm -23 <(seq "30000" "30200" | sort) <(ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n "1")
+}
+
+cleanup() {
+  echo "Cleaning up $CLUSTER_NAME"
+  k3d cluster delete "$CLUSTER_NAME" || true
+  rm -rf "$KUBECONFIG"
+}
+trap cleanup EXIT
+
+# Create a cluster and bind ports 80 and 443 on the host
+# This will allow us to access challenger server on 10.0.2.2 which is the IP
+# on which qemu "sees" the host.
+# We change the CIDR because k3s creates iptables rules that block DNS traffic to this CIDR
+# (something like that). If you run k3d inside a k3s cluster (inside a Pod), DNS won't work
+# inside the k3d server container unless you use a different CIDR.
+# Here we are avoiding CIDR "10.43.x.x"
+k3d cluster create "$CLUSTER_NAME" --k3s-arg "--cluster-cidr=10.49.0.1/16@server:0" --k3s-arg "--service-cidr=10.48.0.1/16@server:0" -p '80:80@server:0' -p '443:443@server:0' --image "$K3S_IMAGE"
+k3d kubeconfig get "$CLUSTER_NAME" > "$KUBECONFIG"
+
+# Build the docker image
+IMG=controller:latest make docker-build
+
+# Import the image to the cluster
+k3d image import -c "$CLUSTER_NAME" controller:latest
+
+# Install cert manager
+kubectl apply -f https://github.com/jetstack/cert-manager/releases/latest/download/cert-manager.yaml
+kubectl wait --for=condition=Available deployment --timeout=2m -n cert-manager --all
+
+# Replace the CLUSTER_IP in the kustomize resource
+# Only needed for debugging so that we can access the server from the host
+# (the 10.0.2.2 IP address is only useful from within qemu)
+export CLUSTER_IP=$(docker inspect "k3d-${CLUSTER_NAME}-server-0"  | jq -r '.[0].NetworkSettings.Networks[].IPAddress')
+envsubst \
+    < "$SCRIPT_DIR/../tests/assets/challenger-server-ingress.template.yaml" \
+    > "$SCRIPT_DIR/../tests/assets/challenger-server-ingress.yaml"
+
+# Install the challenger server kustomization
+kubectl apply -k "$SCRIPT_DIR/../tests/assets/"
+
+# 10.0.2.2 is where the vm sees the host
+# https://stackoverflow.com/a/6752280
+export KMS_ADDRESS="10.0.2.2.challenger.sslip.io"
+
+go run github.com/onsi/ginkgo/v2/ginkgo -v --nodes $GINKGO_NODES --label-filter $LABEL --fail-fast -r ./tests/

tests/assets/challenger-patch.yaml

@@ -0,0 +1,37 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+        - name: manager
+          # Don't try to pull the image we built locally
+          imagePullPolicy: IfNotPresent
+          args:
+          - "--health-probe-bind-address"
+          - ":8081"
+          - "--metrics-bind-address"
+          - "127.0.0.1:8080"
+          - "--namespace"
+          - "default"
+          - "--leader-elect"
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: kcrypt-escrow-server
+  namespace: system
+spec:
+  type: ClusterIP
+  selector:
+    control-plane: controller-manager
+  ports:
+    - name: wss
+      port: 8082
+      protocol: TCP
+      targetPort: 8082

tests/assets/challenger-server-ingress.template.yaml

@@ -0,0 +1,35 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: challenger-server
+  annotations:
+    cert-manager.io/cluster-issuer: "selfsigned"
+    kubernetes.io/ingress.class: "traefik"
+spec:
+  tls:
+  - hosts:
+    - 10.0.2.2.challenger.sslip.io
+    - ${CLUSTER_IP}.challenger.sslip.io
+    secretName: kms-tls
+  rules:
+    - host: 10.0.2.2.challenger.sslip.io
+      http:
+        paths:
+          - pathType: Prefix
+            path: "/"
+            backend:
+              service:
+                name: kcrypt-controller-kcrypt-escrow-server
+                port:
+                  number: 8082
+    - host: ${CLUSTER_IP}.challenger.sslip.io
+      http:
+        paths:
+          - pathType: Prefix
+            path: "/"
+            backend:
+              service:
+                name: kcrypt-controller-kcrypt-escrow-server
+                port:
+                  number: 8082

tests/assets/cluster-issuer.yaml

@@ -0,0 +1,8 @@
+---
+# Self-signed issuer
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: selfsigned
+spec:
+  selfSigned: {}

tests/assets/kustomization.yaml

@@ -0,0 +1,13 @@
+# Adds namespace to all resources.
+namespace: default
+
+bases:
+- ../../config/default
+
+resources:
+- challenger-server-ingress.yaml
+- cluster-issuer.yaml
+
+patchesStrategicMerge:
+# Fix labels and selectors to make challenger server accessible
+- challenger-patch.yaml

tests/encryption_test.go

@@ -0,0 +1,390 @@
+package e2e_test
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path"
+	"strconv"
+	"strings"
+	"syscall"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	. "github.com/spectrocloud/peg/matcher"
+	"gopkg.in/yaml.v3"
+
+	client "github.com/kairos-io/kairos-challenger/cmd/discovery/client"
+)
+
+var installationOutput string
+var vm VM
+
+var _ = Describe("kcrypt encryption", func() {
+	var config string
+
+	BeforeEach(func() {
+		RegisterFailHandler(printInstallationOutput)
+		_, vm = startVM()
+		fmt.Printf("\nvm.StateDir = %+v\n", vm.StateDir)
+
+		vm.EventuallyConnects(1200)
+	})
+
+	JustBeforeEach(func() {
+		configFile, err := os.CreateTemp("", "")
+		Expect(err).ToNot(HaveOccurred())
+		defer os.Remove(configFile.Name())
+
+		err = os.WriteFile(configFile.Name(), []byte(config), 0744)
+		Expect(err).ToNot(HaveOccurred())
+
+		err = vm.Scp(configFile.Name(), "config.yaml", "0744")
+		Expect(err).ToNot(HaveOccurred())
+
+		installationOutput, err = vm.Sudo("/bin/bash -c 'set -o pipefail && kairos-agent manual-install --device auto config.yaml 2>&1 | tee manual-install.txt'")
+		Expect(err).ToNot(HaveOccurred(), installationOutput)
+	})
+
+	AfterEach(func() {
+		err := vm.Destroy(func(vm VM) {
+			// Stop TPM emulator
+			tpmPID, err := os.ReadFile(path.Join(vm.StateDir, "tpm", "pid"))
+			Expect(err).ToNot(HaveOccurred())
+
+			if len(tpmPID) != 0 {
+				pid, err := strconv.Atoi(string(tpmPID))
+				Expect(err).ToNot(HaveOccurred())
+
+				syscall.Kill(pid, syscall.SIGKILL)
+			}
+		})
+		Expect(err).ToNot(HaveOccurred())
+	})
+
+	// https://kairos.io/docs/advanced/partition_encryption/#offline-mode
+	When("doing local encryption", Label("local-encryption"), func() {
+		BeforeEach(func() {
+			config = `#cloud-config
+
+install:
+  encrypted_partitions:
+  - COS_PERSISTENT
+  reboot: false # we will reboot manually
+
+hostname: metal-{{ trunc 4 .MachineID }}
+users:
+- name: kairos
+  passwd: kairos
+`
+		})
+
+		It("boots and has an encrypted partition", func() {
+			vm.Reboot()
+			vm.EventuallyConnects(1200)
+			out, err := vm.Sudo("blkid")
+			Expect(err).ToNot(HaveOccurred(), out)
+			Expect(out).To(MatchRegexp("TYPE=\"crypto_LUKS\" PARTLABEL=\"persistent\""), out)
+		})
+	})
+
+	//https://kairos.io/docs/advanced/partition_encryption/#online-mode
+	When("using a remote key management server (automated passphrase generation)", Label("remote-auto"), func() {
+		var tpmHash string
+		var err error
+
+		BeforeEach(func() {
+			tpmHash, err = vm.Sudo("/system/discovery/kcrypt-discovery-challenger")
+			Expect(err).ToNot(HaveOccurred(), tpmHash)
+
+			kubectlApplyYaml(fmt.Sprintf(`---
+apiVersion: keyserver.kairos.io/v1alpha1
+kind: SealedVolume
+metadata:
+  name: "%[1]s"
+  namespace: default
+spec:
+  TPMHash: "%[1]s"
+  partitions:
+    - label: COS_PERSISTENT
+  quarantined: false
+`, strings.TrimSpace(tpmHash)))
+
+			config = fmt.Sprintf(`#cloud-config
+
+hostname: metal-{{ trunc 4 .MachineID }}
+users:
+- name: kairos
+  passwd: kairos
+
+install:
+  encrypted_partitions:
+  - COS_PERSISTENT
+  grub_options:
+    extra_cmdline: "rd.neednet=1"
+  reboot: false # we will reboot manually
+
+kcrypt:
+  challenger:
+    challenger_server: "http://%s"
+    nv_index: ""
+    c_index: ""
+    tpm_device: ""
+`, os.Getenv("KMS_ADDRESS"))
+		})
+
+		AfterEach(func() {
+			cmd := exec.Command("kubectl", "delete", "sealedvolume", tpmHash)
+			out, err := cmd.CombinedOutput()
+			Expect(err).ToNot(HaveOccurred(), out)
+		})
+
+		It("creates a passphrase and a key/pair to decrypt it", func() {
+			// Expect a LUKS partition
+			vm.Reboot(750)
+			vm.EventuallyConnects(1200)
+			out, err := vm.Sudo("blkid")
+			Expect(err).ToNot(HaveOccurred(), out)
+			Expect(out).To(MatchRegexp("TYPE=\"crypto_LUKS\" PARTLABEL=\"persistent\""), out)
+
+			// Expect a secret to be created
+			cmd := exec.Command("kubectl", "get", "secrets",
+				fmt.Sprintf("%s-cos-persistent", tpmHash),
+				"-o=go-template='{{.data.generated_by|base64decode}}'",
+			)
+
+			secretOut, err := cmd.CombinedOutput()
+			Expect(err).ToNot(HaveOccurred(), string(secretOut))
+			Expect(string(secretOut)).To(MatchRegexp("tpm"))
+		})
+	})
+
+	// https://kairos.io/docs/advanced/partition_encryption/#scenario-static-keys
+	When("using a remote key management server (static keys)", Label("remote-static"), func() {
+		var tpmHash string
+		var err error
+
+		BeforeEach(func() {
+			tpmHash, err = vm.Sudo("/system/discovery/kcrypt-discovery-challenger")
+			Expect(err).ToNot(HaveOccurred(), tpmHash)
+
+			kubectlApplyYaml(fmt.Sprintf(`---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: %[1]s
+  namespace: default
+type: Opaque
+stringData:
+  pass: "awesome-plaintext-passphrase"
+`, tpmHash))
+
+			kubectlApplyYaml(fmt.Sprintf(`---
+apiVersion: keyserver.kairos.io/v1alpha1
+kind: SealedVolume
+metadata:
+    name: %[1]s
+    namespace: default
+spec:
+  TPMHash: "%[1]s"
+  partitions:
+    - label: COS_PERSISTENT
+      secret:
+       name: %[1]s
+       path: pass
+  quarantined: false
+`, tpmHash))
+
+			config = fmt.Sprintf(`#cloud-config
+
+hostname: metal-{{ trunc 4 .MachineID }}
+users:
+- name: kairos
+  passwd: kairos
+
+install:
+  encrypted_partitions:
+  - COS_PERSISTENT
+  grub_options:
+    extra_cmdline: "rd.neednet=1"
+  reboot: false # we will reboot manually
+
+kcrypt:
+  challenger:
+    challenger_server: "http://%s"
+    nv_index: ""
+    c_index: ""
+    tpm_device: ""
+
+`, os.Getenv("KMS_ADDRESS"))
+		})
+
+		AfterEach(func() {
+			cmd := exec.Command("kubectl", "delete", "sealedvolume", tpmHash)
+			out, err := cmd.CombinedOutput()
+			Expect(err).ToNot(HaveOccurred(), out)
+
+			cmd = exec.Command("kubectl", "delete", "secret", tpmHash)
+			out, err = cmd.CombinedOutput()
+			Expect(err).ToNot(HaveOccurred(), out)
+		})
+
+		It("creates uses the existing passphrase to decrypt it", func() {
+			// Expect a LUKS partition
+			vm.Reboot()
+			vm.EventuallyConnects(1200)
+			out, err := vm.Sudo("blkid")
+			Expect(err).ToNot(HaveOccurred(), out)
+			Expect(out).To(MatchRegexp("TYPE=\"crypto_LUKS\" PARTLABEL=\"persistent\""), out)
+			Expect(out).To(MatchRegexp("/dev/mapper.*LABEL=\"COS_PERSISTENT\""), out)
+		})
+	})
+
+	When("the key management server is listening on https", func() {
+		var tpmHash string
+		var err error
+
+		BeforeEach(func() {
+			tpmHash, err = vm.Sudo("/system/discovery/kcrypt-discovery-challenger")
+			Expect(err).ToNot(HaveOccurred(), tpmHash)
+
+			kubectlApplyYaml(fmt.Sprintf(`---
+apiVersion: keyserver.kairos.io/v1alpha1
+kind: SealedVolume
+metadata:
+  name: "%[1]s"
+  namespace: default
+spec:
+  TPMHash: "%[1]s"
+  partitions:
+    - label: COS_PERSISTENT
+  quarantined: false
+`, strings.TrimSpace(tpmHash)))
+		})
+
+		When("the certificate is pinned on the configuration", Label("remote-https-pinned"), func() {
+			BeforeEach(func() {
+				cert := getChallengerServerCert()
+				kcryptConfig := createConfigWithCert(fmt.Sprintf("https://%s", os.Getenv("KMS_ADDRESS")), cert)
+				kcryptConfigBytes, err := yaml.Marshal(kcryptConfig)
+				Expect(err).ToNot(HaveOccurred())
+				config = fmt.Sprintf(`#cloud-config
+
+hostname: metal-{{ trunc 4 .MachineID }}
+users:
+- name: kairos
+  passwd: kairos
+
+install:
+  encrypted_partitions:
+  - COS_PERSISTENT
+  grub_options:
+    extra_cmdline: "rd.neednet=1"
+  reboot: false # we will reboot manually
+
+%s
+
+`, string(kcryptConfigBytes))
+			})
+
+			It("successfully talks to the server", func() {
+				vm.Reboot()
+				vm.EventuallyConnects(1200)
+				out, err := vm.Sudo("blkid")
+				Expect(err).ToNot(HaveOccurred(), out)
+				Expect(out).To(MatchRegexp("TYPE=\"crypto_LUKS\" PARTLABEL=\"persistent\""), out)
+				Expect(out).To(MatchRegexp("/dev/mapper.*LABEL=\"COS_PERSISTENT\""), out)
+			})
+		})
+
+		When("the no certificate is set in the configuration", Label("remote-https-bad-cert"), func() {
+			BeforeEach(func() {
+				config = fmt.Sprintf(`#cloud-config
+
+hostname: metal-{{ trunc 4 .MachineID }}
+users:
+- name: kairos
+  passwd: kairos
+
+install:
+  encrypted_partitions:
+  - COS_PERSISTENT
+  grub_options:
+    extra_cmdline: "rd.neednet=1"
+  reboot: false # we will reboot manually
+
+kcrypt:
+  challenger:
+    challenger_server: "https://%s"
+    nv_index: ""
+    c_index: ""
+    tpm_device: ""
+`, os.Getenv("KMS_ADDRESS"))
+			})
+
+			It("fails to talk to the server", func() {
+				out, err := vm.Sudo("cat manual-install.txt")
+				Expect(err).ToNot(HaveOccurred(), out)
+				Expect(out).To(MatchRegexp("could not encrypt partition.*x509: certificate signed by unknown authority"))
+			})
+		})
+	})
+})
+
+func printInstallationOutput(message string, callerSkip ...int) {
+	fmt.Printf("This is the installation output in case it's useful:\n%s\n", installationOutput)
+
+	// Ensures the correct line numbers are reported
+	Fail(message, callerSkip[0]+1)
+}
+
+func kubectlApplyYaml(yamlData string) {
+	yamlFile, err := os.CreateTemp("", "")
+	Expect(err).ToNot(HaveOccurred())
+	defer os.Remove(yamlFile.Name())
+
+	err = os.WriteFile(yamlFile.Name(), []byte(yamlData), 0744)
+	Expect(err).ToNot(HaveOccurred())
+
+	cmd := exec.Command("kubectl", "apply", "-f", yamlFile.Name())
+	out, err := cmd.CombinedOutput()
+	Expect(err).ToNot(HaveOccurred(), out)
+}
+
+func getChallengerServerCert() string {
+	cmd := exec.Command(
+		"kubectl", "get", "secret", "-n", "default", "kms-tls",
+		"-o", `go-template={{ index .data "ca.crt" | base64decode }}`)
+	out, err := cmd.CombinedOutput()
+	Expect(err).ToNot(HaveOccurred(), string(out))
+
+	return string(out)
+}
+
+func createConfigWithCert(server, cert string) client.Config {
+	return client.Config{
+		Kcrypt: struct {
+			Challenger struct {
+				Server      string "yaml:\"challenger_server,omitempty\""
+				NVIndex     string "yaml:\"nv_index,omitempty\""
+				CIndex      string "yaml:\"c_index,omitempty\""
+				TPMDevice   string "yaml:\"tpm_device,omitempty\""
+				Certificate string "yaml:\"certificate,omitempty\""
+			}
+		}{
+			Challenger: struct {
+				Server      string "yaml:\"challenger_server,omitempty\""
+				NVIndex     string "yaml:\"nv_index,omitempty\""
+				CIndex      string "yaml:\"c_index,omitempty\""
+				TPMDevice   string "yaml:\"tpm_device,omitempty\""
+				Certificate string "yaml:\"certificate,omitempty\""
+			}{
+				Server:      server,
+				NVIndex:     "",
+				CIndex:      "",
+				TPMDevice:   "",
+				Certificate: cert,
+			},
+		},
+	}
+}

tests/suite_test.go

@@ -0,0 +1,191 @@
+package e2e_test
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"os"
+	"os/exec"
+	"path"
+	"strconv"
+	"testing"
+
+	"github.com/google/uuid"
+	process "github.com/mudler/go-processmanager"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	. "github.com/spectrocloud/peg/matcher"
+	machine "github.com/spectrocloud/peg/pkg/machine"
+	"github.com/spectrocloud/peg/pkg/machine/types"
+)
+
+func TestE2e(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "kcrypt-challenger e2e test Suite")
+}
+
+func user() string {
+	user := os.Getenv("SSH_USER")
+	if user == "" {
+		user = "kairos"
+	}
+	return user
+}
+
+func pass() string {
+	pass := os.Getenv("SSH_PASS")
+	if pass == "" {
+		pass = "kairos"
+	}
+
+	return pass
+}
+
+func startVM() (context.Context, VM) {
+	if os.Getenv("ISO") == "" {
+		fmt.Println("ISO missing")
+		os.Exit(1)
+	}
+
+	vmName := uuid.New().String()
+
+	stateDir, err := os.MkdirTemp("", "")
+	Expect(err).ToNot(HaveOccurred())
+
+	emulateTPM(stateDir)
+
+	sshPort, err := getFreePort()
+	Expect(err).ToNot(HaveOccurred())
+
+	memory := os.Getenv("MEMORY")
+	if memory == "" {
+		memory = "2096"
+	}
+	cpus := os.Getenv("CPUS")
+	if cpus == "" {
+		cpus = "2"
+	}
+
+	opts := []types.MachineOption{
+		types.QEMUEngine,
+		types.WithISO(os.Getenv("ISO")),
+		types.WithMemory(memory),
+		types.WithCPU(cpus),
+		types.WithSSHPort(strconv.Itoa(sshPort)),
+		types.WithID(vmName),
+		types.WithSSHUser(user()),
+		types.WithSSHPass(pass()),
+		types.OnFailure(func(p *process.Process) {
+			defer GinkgoRecover()
+
+			var stdout, stderr, serial, status string
+
+			if stdoutBytes, err := os.ReadFile(p.StdoutPath()); err != nil {
+				stdout = fmt.Sprintf("Error reading stdout file: %s\n", err)
+			} else {
+				stdout = string(stdoutBytes)
+			}
+
+			if stderrBytes, err := os.ReadFile(p.StderrPath()); err != nil {
+				stderr = fmt.Sprintf("Error reading stderr file: %s\n", err)
+			} else {
+				stderr = string(stderrBytes)
+			}
+
+			if status, err = p.ExitCode(); err != nil {
+				status = fmt.Sprintf("Error reading exit code file: %s\n", err)
+			}
+
+			if serialBytes, err := os.ReadFile(path.Join(p.StateDir(), "serial.log")); err != nil {
+				serial = fmt.Sprintf("Error reading serial log file: %s\n", err)
+			} else {
+				serial = string(serialBytes)
+			}
+
+			Fail(fmt.Sprintf("\nVM Aborted.\nstdout: %s\nstderr: %s\nserial: %s\nExit status: %s\n",
+				stdout, stderr, serial, status))
+		}),
+		types.WithStateDir(stateDir),
+		// Serial output to file: https://superuser.com/a/1412150
+		func(m *types.MachineConfig) error {
+			m.Args = append(m.Args,
+				"-chardev", fmt.Sprintf("socket,id=chrtpm,path=%s/swtpm-sock", path.Join(stateDir, "tpm")),
+				"-tpmdev", "emulator,id=tpm0,chardev=chrtpm", "-device", "tpm-tis,tpmdev=tpm0",
+				"-chardev", fmt.Sprintf("stdio,mux=on,id=char0,logfile=%s,signal=off", path.Join(stateDir, "serial.log")),
+				"-serial", "chardev:char0",
+				"-mon", "chardev=char0",
+			)
+			return nil
+		},
+	}
+
+	// Set this to true to debug.
+	// You can connect to it with "spicy" or other tool.
+	var spicePort int
+	if os.Getenv("MACHINE_SPICY") != "" {
+		spicePort, err = getFreePort()
+		Expect(err).ToNot(HaveOccurred())
+		fmt.Printf("Spice port = %d\n", spicePort)
+		opts = append(opts, types.WithDisplay(fmt.Sprintf("-spice port=%d,addr=127.0.0.1,disable-ticketing", spicePort)))
+	}
+
+	if os.Getenv("KVM") != "" {
+		opts = append(opts, func(m *types.MachineConfig) error {
+			m.Args = append(m.Args,
+				"-enable-kvm",
+			)
+			return nil
+		})
+	}
+
+	m, err := machine.New(opts...)
+	Expect(err).ToNot(HaveOccurred())
+
+	vm := NewVM(m, stateDir)
+
+	ctx, err := vm.Start(context.Background())
+	Expect(err).ToNot(HaveOccurred())
+
+	if os.Getenv("MACHINE_SPICY") != "" {
+		cmd := exec.Command("spicy",
+			"-h", "127.0.0.1",
+			"-p", strconv.Itoa(spicePort))
+		err = cmd.Start()
+		Expect(err).ToNot(HaveOccurred())
+	}
+
+	return ctx, vm
+}
+
+// return the PID of the swtpm (to be killed later) and the state directory
+func emulateTPM(stateDir string) {
+	t := path.Join(stateDir, "tpm")
+	err := os.MkdirAll(t, os.ModePerm)
+	Expect(err).ToNot(HaveOccurred())
+
+	cmd := exec.Command("swtpm",
+		"socket",
+		"--tpmstate", fmt.Sprintf("dir=%s", t),
+		"--ctrl", fmt.Sprintf("type=unixio,path=%s/swtpm-sock", t),
+		"--tpm2", "--log", "level=20")
+	err = cmd.Start()
+	Expect(err).ToNot(HaveOccurred())
+
+	err = os.WriteFile(path.Join(t, "pid"), []byte(strconv.Itoa(cmd.Process.Pid)), 0744)
+	Expect(err).ToNot(HaveOccurred())
+}
+
+// https://gist.github.com/sevkin/96bdae9274465b2d09191384f86ef39d
+// GetFreePort asks the kernel for a free open port that is ready to use.
+func getFreePort() (port int, err error) {
+	var a *net.TCPAddr
+	if a, err = net.ResolveTCPAddr("tcp", "localhost:0"); err == nil {
+		var l *net.TCPListener
+		if l, err = net.ListenTCP("tcp", a); err == nil {
+			defer l.Close()
+			return l.Addr().(*net.TCPAddr).Port, nil
+		}
+	}
+	return
+}