Convert sysctl to using linuxkit/alpine and nested build

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2017-05-19 14:22:45 +01:00
parent 78728c281d
commit e12b5a36ba
3 changed files with 22 additions and 40 deletions

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FROM linuxkit/alpine:6fd232518678407a5ce4b31f7e21e07a883b4ba4@sha256:f5084a6b1716dd931749d1308529ee904f87fa74a5a9523f23046c4a1215424e AS mirror
RUN apk add --no-cache go musl-dev
ENV GOPATH=/go PATH=$PATH:/go/bin
COPY main.go /go/src/sysctl/
RUN go-compile.sh /go/src/sysctl
FROM scratch FROM scratch
COPY . ./ ENTRYPOINT []
CMD []
WORKDIR /
COPY --from=mirror /go/bin/sysctl /usr/bin/sysctl
COPY etc/ /etc/
CMD ["/usr/bin/sysctl"] CMD ["/usr/bin/sysctl"]

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GO_COMPILE=linuxkit/go-compile:4513068d9a7e919e4ec42e2d7ee879ff5b95b7f5@sha256:bdfadbe3e4ec699ca45b67453662321ec270f2d1a1dbdbf09625776d3ebd68c5 .PHONY: tag push
default: push
SHA_IMAGE=alpine:3.5@sha256:dfbd4a3a8ebca874ebd2474f044a0b33600d4523d03b0df76e5c5986cb02d7e8
SYSCTL_BINARY=usr/bin/sysctl
ORG?=linuxkit ORG?=linuxkit
IMAGE=sysctl IMAGE=sysctl
DEPS=Dockerfile Makefile main.go
.PHONY: tag push clean container HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}')
default: push
$(SYSCTL_BINARY): main.go tag: $(DEPS)
mkdir -p $(dir $@) docker build --squash --no-cache --network=none -t $(ORG)/$(IMAGE):$(HASH) .
tar cf - $^ | docker run --rm --net=none --log-driver=none -i $(GO_COMPILE) -o $@ | tar xf -
DIRS=dev proc sys push: tag
$(DIRS): docker pull $(ORG)/$(IMAGE):$(HASH) || \
mkdir -p $@ docker push $(ORG)/$(IMAGE):$(HASH)
DEPS=$(DIRS) $(SYSCTL_BINARY) etc/sysctl.d/00-moby.conf
container: Dockerfile $(DEPS)
tar cf - $^ | docker build --no-cache -t $(IMAGE):build -
hash: Dockerfile $(DEPS)
find $^ -type f | xargs cat | docker run --rm -i $(SHA_IMAGE) sha1sum - | sed 's/ .*//' > hash
push: hash container
docker pull $(ORG)/$(IMAGE):$(shell cat hash) || \
(docker tag $(IMAGE):build $(ORG)/$(IMAGE):$(shell cat hash) && \
docker push $(ORG)/$(IMAGE):$(shell cat hash))
docker rmi $(IMAGE):build
rm -f hash
tag: hash container
docker pull $(ORG)/$(IMAGE):$(shell cat hash) || \
docker tag $(IMAGE):build $(ORG)/$(IMAGE):$(shell cat hash)
docker rmi $(IMAGE):build
rm -f hash
clean:
rm -rf hash $(DIRS) usr
.DELETE_ON_ERROR: