mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-07-22 10:31:35 +00:00
Remove projects/kubernetes, moved to https://github.com/linuxkit/kubernetes
Signed-off-by: Ian Campbell <ijc@docker.com>
This commit is contained in:
Ian Campbell
parent
b27c196719
commit
6539b78a72
5
projects/kubernetes/.gitignore
vendored
5
projects/kubernetes/.gitignore
vendored
@ -1,5 +0,0 @@
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image-cache/common/*.tar
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image-cache/common/Dockerfile
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image-cache/control-plane/*.tar
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image-cache/control-plane/Dockerfile
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kube-weave.yaml
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@ -1,43 +0,0 @@
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KUBE_RUNTIME ?= docker
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KUBE_NETWORK ?= weave
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KUBE_NETWORK_WEAVE ?= v2.0.5
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ifeq ($(shell uname -s),Darwin)
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KUBE_FORMATS ?= iso-efi
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else
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KUBE_FORMATS ?= iso-bios
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endif
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KUBE_FORMAT_ARGS := $(patsubst %,-format %,$(KUBE_FORMATS))
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all: build-container-images build-vm-images
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build-container-images:
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linuxkit pkg build kubelet
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build-cache-images:
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$(MAKE) -C image-cache build
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push-container-images:
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linuxkit pkg push kubelet
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$(MAKE) -C image-cache push
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build-vm-images: kube-master.iso kube-node.iso
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kube-master.iso: kube.yml $(KUBE_RUNTIME).yml $(KUBE_RUNTIME)-master.yml $(KUBE_NETWORK).yml
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moby build -name kube-master $(KUBE_FORMAT_ARGS) $^
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kube-node.iso: kube.yml $(KUBE_RUNTIME).yml $(KUBE_NETWORK).yml
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moby build -name kube-node $(KUBE_FORMAT_ARGS) $^
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weave.yml: kube-weave.yaml
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kube-weave.yaml:
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curl -L -o $@ https://cloud.weave.works/k8s/v1.8/net?v=$(KUBE_NETWORK_WEAVE)
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clean:
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rm -f -r \
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kube-*-kernel kube-*-cmdline kube-*-state kube-*-initrd.img *.iso \
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kube-weave.yaml
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$(MAKE) -C image-cache clean
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@ -1,105 +0,0 @@
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# Kubernetes and LinuxKit
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This project aims to demonstrate how one can create minimal and immutable Kubernetes OS images with LinuxKit.
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Make sure to `cd projects/kubernetes` first.
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Build OS images:
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```
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make build-vm-images
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```
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By default this will build images using Docker Engine for execution. To instead use cri-containerd use:
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```
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make build-vm-images KUBE_RUNTIME=cri-containerd
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```
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Boot Kubernetes master OS image using `hyperkit` on macOS: or `qemu` on Linux:
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```
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./boot.sh
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```
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or, to automatically initialise the cluster upon boot with no additional options
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```
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KUBE_MASTER_AUTOINIT="" ./boot.sh
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```
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Get IP address of the master:
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```
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ip addr show dev eth0
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```
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Login to the kubelet container:
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```
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./ssh_into_kubelet.sh <master-ip>
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```
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Manually initialise master with `kubeadm` if booted without `KUBE_MASTER_AUTOINIT`:
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```
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kubeadm-init.sh
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```
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Once `kubeadm` exits, make sure to copy the `kubeadm join` arguments,
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and try `kubectl get nodes` from within the master.
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If you just want to run a single node cluster with jobs running on the master, you can use:
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```
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kubectl taint nodes --all node-role.kubernetes.io/master- --kubeconfig /etc/kubernetes/admin.conf
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```
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To boot a node use:
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```
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./boot.sh <n> [<join_args> ...]
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```
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More specifically, to start 3 nodes use 3 separate shells and run this:
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```
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shell1> ./boot.sh 1 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443
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shell2> ./boot.sh 2 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443
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shell3> ./boot.sh 3 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443
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```
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## Platform specific information
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### MacOS
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The above instructions should work as is.
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### Linux
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By default `linuxkit run` uses user mode networking which does not
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support access from the host. To workaround this you can use port
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forwarding e.g.
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KUBE_RUN_ARGS="-publish 2222:22" ./boot.sh
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ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p 2222 root@localhost
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However you will not be able to run worker nodes since individual
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instances cannot see each other.
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To enable networking between instance unfortunately requires `root`
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privileges to configure a bridge and setup the bridge mode privileged
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helper.
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See http://wiki.qemu.org/Features/HelperNetworking for details in
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brief you will need:
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- To setup and configure a bridge (including e.g. DHCP etc) on the
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host. (You can reuse a bridge created by e.g. `virt-mananger`)
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- To set the `qemu-bridge-helper` setuid root. The location differs by
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distro, it could be `/usr/lib/qemu/qemu-bridge-helper` or
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`/usr/local/libexec/qemu-bridge-helper` or elsewhere. You need to
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`chmod u+s «PATH»`.
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- List the bridge created in the first step in `/etc/qemu/bridge.conf`
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with a line like `allow br0` (if your bridge is called `br0`).
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- Set `KUBE_NETWORKING=bridge,«name»` e.g.
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KUBE_NETWORKING="bridge,br0" ./boot.sh
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KUBE_NETWORKING="bridge,br0" ./boot.sh 1 «options»
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## Configuration
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The `boot.sh` script has various configuration variables at the top
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which can be overridden via the environment e.g.
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KUBE_VCPUS=4 ./boot.sh
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@ -1,91 +0,0 @@
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#!/bin/sh
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set -e
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: ${KUBE_MASTER_VCPUS:=2}
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: ${KUBE_MASTER_MEM:=1024}
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: ${KUBE_MASTER_DISK:=4G}
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: ${KUBE_MASTER_UNTAINT:=n}
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: ${KUBE_NODE_VCPUS:=2}
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: ${KUBE_NODE_MEM:=4096}
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: ${KUBE_NODE_DISK:=8G}
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: ${KUBE_NETWORKING:=default}
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: ${KUBE_RUN_ARGS:=}
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: ${KUBE_EFI:=}
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: ${KUBE_MAC:=}
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: ${KUBE_CLEAR_STATE:=}
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[ "$(uname -s)" = "Darwin" ] && KUBE_EFI=1
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suffix=".iso"
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[ -n "${KUBE_EFI}" ] && suffix="-efi.iso" && uefi="--uefi"
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if [ $# -eq 0 ] ; then
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img="kube-master"
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# If $KUBE_MASTER_AUTOINIT is set, including if it is set to ""
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# then we configure for auto init. If it is completely unset then
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# we do not.
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if [ -n "${KUBE_MASTER_AUTOINIT+x}" ] ; then
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kubeadm_data="${kubeadm_data+$kubeadm_data, }\"init\": { \"content\": \"${KUBE_MASTER_AUTOINIT}\" }"
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fi
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if [ "${KUBE_MASTER_UNTAINT}" = "y" ] ; then
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kubeadm_data="${kubeadm_data+$kubeadm_data, }\"untaint-master\": { \"content\": \"\" }"
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fi
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state="kube-master-state"
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: ${KUBE_VCPUS:=$KUBE_MASTER_VCPUS}
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: ${KUBE_MEM:=$KUBE_MASTER_MEM}
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: ${KUBE_DISK:=$KUBE_MASTER_DISK}
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elif [ $# -ge 1 ] ; then
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case $1 in
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''|*[!0-9]*)
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echo "Node number must be a number"
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exit 1
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;;
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0)
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echo "Node number must be greater than 0"
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exit 1
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;;
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*) ;;
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esac
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img="kube-node"
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name="node-${1}"
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shift
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if [ $# -ge 1 ] ; then
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kubeadm_data="\"join\": { \"content\": \"${*}\" }"
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fi
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state="kube-${name}-state"
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: ${KUBE_VCPUS:=$KUBE_NODE_VCPUS}
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: ${KUBE_MEM:=$KUBE_NODE_MEM}
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: ${KUBE_DISK:=$KUBE_NODE_DISK}
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else
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echo "Usage:"
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echo " - Boot master:"
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echo " ${0}"
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echo " - Boot node:"
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echo " ${0} <node> <join_args>"
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exit 1
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fi
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|
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set -x
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if [ -n "${KUBE_CLEAR_STATE}" ] ; then
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rm -rf "${state}"
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mkdir "${state}"
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if [ -n "${KUBE_MAC}" ] ; then
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echo -n "${KUBE_MAC}" > "${state}"/mac-addr
|
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fi
|
||||
fi
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mkdir -p "${state}"
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touch $state/metadata.json
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if [ -n "${kubeadm_data}" ] ; then
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echo "{ \"kubeadm\": { \"entries\": { ${kubeadm_data} } } }" > $state/metadata.json
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fi
|
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linuxkit run ${KUBE_RUN_ARGS} -networking ${KUBE_NETWORKING} -cpus ${KUBE_VCPUS} -mem ${KUBE_MEM} -state "${state}" -disk size=${KUBE_DISK} -data $state/metadata.json ${uefi} "${img}${suffix}"
|
||||
@ -1,8 +0,0 @@
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onboot:
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- name: bridge
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image: busybox:latest
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||||
command: ["/bin/sh", "-c", "set -ex; echo '{\"cniVersion\":\"0.3.1\",\"name\":\"default\",\"plugins\":[{\"type\":\"bridge\",\"bridge\":\"cni0\",\"isDefaultGateway\":true,\"ipMasq\":false,\"hairpinMode\":true,\"ipam\":{\"type\":\"host-local\",\"subnet\":\"10.1.0.0/16\",\"gateway\":\"10.1.0.1\"},\"dns\":{\"nameservers\":[\"10.1.0.1\"]}},{\"type\":\"portmap\",\"capabilities\":{\"portMappings\":true},\"snat\":true}]}' > /var/lib/cni/etc/net.d/10-default.conflist; echo '{\"cniVersion\":\"0.2.0\",\"type\":\"loopback\"}' > /var/lib/cni/etc/net.d/99-loopback.conf"]
|
||||
runtime:
|
||||
mkdir: ["/var/lib/cni/etc/net.d"]
|
||||
binds:
|
||||
- /var/lib:/var/lib
|
||||
@ -1,7 +0,0 @@
|
||||
services:
|
||||
- name: cri-containerd
|
||||
image: linuxkitprojects/cri-containerd:72863deaa81a749fe8ff72bd69f863bab719aa06
|
||||
files:
|
||||
- path: /etc/kubelet.sh.conf
|
||||
contents: |
|
||||
KUBELET_ARGS="--container-runtime=remote --container-runtime-endpoint=unix:///var/run/cri-containerd.sock"
|
||||
@ -1,52 +0,0 @@
|
||||
FROM linuxkit/alpine:07f7d136e427dc68154cd5edbb2b9576f9ac5213 AS build
|
||||
|
||||
RUN \
|
||||
apk add \
|
||||
bash \
|
||||
gcc \
|
||||
git \
|
||||
go \
|
||||
libc-dev \
|
||||
libseccomp-dev \
|
||||
linux-headers \
|
||||
make \
|
||||
socat \
|
||||
&& true
|
||||
ENV GOPATH=/go PATH=$PATH:/go/bin
|
||||
|
||||
ENV CRI_CONTAINERD_URL https://github.com/kubernetes-incubator/cri-containerd.git
|
||||
#ENV CRI_CONTAINERD_BRANCH pull/NNN/head
|
||||
ENV CRI_CONTAINERD_COMMIT ac8b0979fa634703e0a8d03df03eb51774fcff3d
|
||||
RUN mkdir -p $GOPATH/src/github.com/kubernetes-incubator && \
|
||||
cd $GOPATH/src/github.com/kubernetes-incubator && \
|
||||
git clone $CRI_CONTAINERD_URL cri-containerd
|
||||
WORKDIR $GOPATH/src/github.com/kubernetes-incubator/cri-containerd
|
||||
RUN set -e; \
|
||||
if [ -n "$CRI_CONTAINERD_BRANCH" ] ; then \
|
||||
git fetch origin "$CRI_CONTAINERD_BRANCH"; \
|
||||
fi; \
|
||||
git checkout $CRI_CONTAINERD_COMMIT
|
||||
RUN make static-binaries BUILD_TAGS="seccomp"
|
||||
|
||||
RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
|
||||
# util-linux because a full ns-enter is required.
|
||||
# example commands: /usr/bin/nsenter --net= -F -- <ip commandline>
|
||||
# /usr/bin/nsenter --net=/var/run/netns/cni-5e8acebe-810d-c1b9-ced0-47be2f312fa8 -F -- <ip commandline>
|
||||
# NB the first ("--net=") is actually not valid -- see https://github.com/kubernetes-incubator/cri-containerd/issues/245
|
||||
RUN apk add --no-cache --initdb -p /out \
|
||||
alpine-baselayout \
|
||||
busybox \
|
||||
ca-certificates \
|
||||
iptables \
|
||||
util-linux \
|
||||
&& true
|
||||
# Remove apk residuals. We have a read-only rootfs, so apk is of no use.
|
||||
RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache
|
||||
|
||||
RUN make DESTDIR=/out install
|
||||
|
||||
FROM scratch
|
||||
WORKDIR /
|
||||
ENTRYPOINT ["cri-containerd", "-v", "2", "--alsologtostderr", "--network-bin-dir", "/var/lib/cni/opt/bin", "--network-conf-dir", "/var/lib/cni/etc/net.d"]
|
||||
COPY --from=build /out /
|
||||
LABEL org.mobyproject.config='{"binds": ["/etc/resolv.conf:/etc/resolv.conf", "/run:/run:rshared,rbind", "/dev:/dev", "/tmp:/tmp", "/var:/var:rshared,rbind", "/var/lib/kubeadm:/etc/kubernetes", "/var/lib/cni/etc:/etc/cni:rshared,rbind", "/var/lib/cni/opt:/opt/cni:rshared,rbind", "/run/containerd/containerd.sock:/run/containerd/containerd.sock", "/var/lib/kubelet-plugins:/usr/libexec/kubernetes/kubelet-plugins:rshared,rbind"], "mounts": [{"type": "cgroup", "options": ["rw","nosuid","noexec","nodev","relatime"]}], "capabilities": ["all"], "rootfsPropagation": "shared", "pid": "host", "runtime": {"mkdir": ["/var/lib/kubeadm", "/var/lib/cni/etc/net.d", "/var/lib/cni/opt", "/var/lib/kubelet-plugins"]}}'
|
||||
@ -1,6 +0,0 @@
|
||||
org: linuxkitprojects
|
||||
image: cri-containerd
|
||||
network: true
|
||||
disable-content-trust: true
|
||||
arches:
|
||||
- amd64
|
||||
@ -1,3 +0,0 @@
|
||||
services:
|
||||
- name: kubernetes-docker-image-cache-control-plane
|
||||
image: linuxkitprojects/kubernetes-docker-image-cache-control-plane:02d28e234458f29277f175e68fdca028403b3ed8
|
||||
@ -1,29 +0,0 @@
|
||||
services:
|
||||
- name: docker
|
||||
image: docker:17.10.0-ce-dind
|
||||
capabilities:
|
||||
- all
|
||||
pid: host
|
||||
mounts:
|
||||
- type: cgroup
|
||||
options: ["rw","nosuid","noexec","nodev","relatime"]
|
||||
binds:
|
||||
- /dev:/dev
|
||||
- /etc/resolv.conf:/etc/resolv.conf
|
||||
- /etc/os-release:/etc/os-release
|
||||
- /lib/modules:/lib/modules
|
||||
- /run:/run
|
||||
- /var:/var:rshared,rbind
|
||||
- /var/lib/kubeadm:/etc/kubernetes
|
||||
- /var/lib/cni/etc:/etc/cni:rshared,rbind
|
||||
- /var/lib/cni/opt:/opt/cni:rshared,rbind
|
||||
- /var/lib/kubelet-plugins:/usr/libexec/kubernetes/kubelet-plugins:rshared,rbind
|
||||
rootfsPropagation: shared
|
||||
command: ["/usr/local/bin/docker-init", "/usr/local/bin/dockerd"]
|
||||
runtime:
|
||||
mkdir: ["/var/lib/kubeadm", "/var/lib/cni/etc", "/var/lib/cni/opt", "/var/lib/kubelet-plugins"]
|
||||
- name: kubernetes-docker-image-cache-common
|
||||
image: linuxkitprojects/kubernetes-docker-image-cache-common:02d28e234458f29277f175e68fdca028403b3ed8
|
||||
files:
|
||||
- path: /etc/kubelet.sh.conf
|
||||
contents: ""
|
||||
1
projects/kubernetes/image-cache/.gitignore
vendored
1
projects/kubernetes/image-cache/.gitignore
vendored
@ -1 +0,0 @@
|
||||
dl/
|
||||
@ -1,20 +0,0 @@
|
||||
FROM linuxkit/alpine:07f7d136e427dc68154cd5edbb2b9576f9ac5213 AS build
|
||||
|
||||
RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
|
||||
RUN apk add --no-cache --initdb -p /out \
|
||||
alpine-baselayout \
|
||||
busybox
|
||||
|
||||
# Remove apk residuals. We have a read-only rootfs, so apk is of no use.
|
||||
RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache
|
||||
|
||||
RUN rmdir /out/var/run && ln -nfs /run /out/var/run
|
||||
|
||||
FROM scratch
|
||||
WORKDIR /
|
||||
COPY --from=build /out /
|
||||
COPY --from=docker:17.06.0-ce /usr/local/bin/docker /usr/local/bin/docker
|
||||
COPY *.tar /images/
|
||||
ENTRYPOINT [ "/bin/sh", "-c" ]
|
||||
CMD [ "for image in /images/*.tar ; do docker image load -i $image && rm -f $image ; done" ]
|
||||
LABEL org.mobyproject.config='{"binds": ["/var/run:/var/run"]}'
|
||||
@ -1,41 +0,0 @@
|
||||
default: push
|
||||
|
||||
include versions.mk
|
||||
|
||||
dl/%.tar:
|
||||
mkdir -p $(dir $@)
|
||||
docker image pull gcr.io/google_containers/$(shell basename $@ .tar)
|
||||
docker image save -o $@ gcr.io/google_containers/$(shell basename $@ .tar)
|
||||
|
||||
%-pkg:
|
||||
@set -e ; \
|
||||
builddir=$$(mktemp -d $(CACHE).XXXXXX) ; \
|
||||
trap 'rm -rf $${builddir}' EXIT ; \
|
||||
ln $(IMAGES) $${builddir} ; \
|
||||
$(MAKE) -f Makefile.pkg BUILDDIR=$${builddir} CACHE=$(CACHE) $*
|
||||
|
||||
.PHONY: build-common forcebuild-common push-common forcepush-common show-tag-common
|
||||
build-common forcebuild-common push-common forcepush-common show-tag-common: %-common: $(patsubst %,dl/%.tar,$(COMMON_IMAGES))
|
||||
@$(MAKE) CACHE=common IMAGES="$^" $*-pkg
|
||||
|
||||
.PHONY: build-control-plane forcebuild-control-plane push-control-plane forcepush-control-plane show-tag-control-plane
|
||||
build-control-plane forcebuild-control-plane push-control-plane forcepush-control-plane show-tag-control-plane: %-control-plane: $(patsubst %,dl/%.tar,$(CONTROL_PLANE_IMAGES))
|
||||
@$(MAKE) CACHE=control-plane IMAGES="$^" $*-pkg
|
||||
|
||||
.PHONY: build forcebuild push forcepush show-tags
|
||||
build: build-common build-control-plane
|
||||
forcebuild: forcebuild-common forcebuild-control-plane
|
||||
push: push-common push-control-plane
|
||||
forcepush: forcepush-common forcepush-control-plane
|
||||
show-tags: show-tag-common show-tag-control-plane
|
||||
|
||||
.PHONY: dl
|
||||
dl: $(patsubst %,dl/%.tar,$(COMMON_IMAGES) $(CONTROL_PLANE_IMAGES))
|
||||
|
||||
.PHONY: clean
|
||||
clean:
|
||||
rm -rf dl
|
||||
|
||||
.PHONY: refresh
|
||||
refresh:
|
||||
./mkversions > versions.mk
|
||||
@ -1,22 +0,0 @@
|
||||
$(BUILDDIR)/build.yml: build.yml.in
|
||||
@sed -e 's/@@CACHE@@/$(CACHE)/g' < $< > $@
|
||||
|
||||
$(BUILDDIR)/Dockerfile: Dockerfile
|
||||
@cp $< $@
|
||||
|
||||
.PHONY: push forcepush tag forcetag show-tag
|
||||
|
||||
push: $(BUILDDIR)/build.yml $(BUILDDIR)/Dockerfile
|
||||
linuxkit pkg push -hash-path . $(BUILDDIR)
|
||||
|
||||
forcepush: $(BUILDDIR)/build.yml $(BUILDDIR)/Dockerfile
|
||||
linuxkit pkg push -force -hash-path . $(BUILDDIR)
|
||||
|
||||
tag: $(BUILDDIR)/build.yml $(BUILDDIR)/Dockerfile
|
||||
linuxkit pkg build -hash-path . $(BUILDDIR)
|
||||
|
||||
forcetag: $(BUILDDIR)/build.yml $(BUILDDIR)/Dockerfile
|
||||
linuxkit pkg build --force -hash-path . $(BUILDDIR)
|
||||
|
||||
show-tag: $(BUILDDIR)/build.yml $(BUILDDIR)/Dockerfile
|
||||
@linuxkit pkg show-tag -hash-path . $(BUILDDIR)
|
||||
@ -1,5 +0,0 @@
|
||||
org: linuxkitprojects
|
||||
image: kubernetes-docker-image-cache-@@CACHE@@
|
||||
disable-content-trust: true
|
||||
arches:
|
||||
- amd64
|
||||
@ -1 +0,0 @@
|
||||
Dockerfile
|
||||
@ -1 +0,0 @@
|
||||
Dockerfile
|
||||
@ -1,45 +0,0 @@
|
||||
#!/bin/sh
|
||||
repo=gcr.io/google_containers
|
||||
kube_version=v1.8.2
|
||||
kube_dns_version=1.14.5
|
||||
pause_version=3.0
|
||||
etcd_version=3.0.17
|
||||
|
||||
common="
|
||||
kube-proxy-amd64:$kube_version
|
||||
k8s-dns-sidecar-amd64:$kube_dns_version
|
||||
k8s-dns-kube-dns-amd64:$kube_dns_version
|
||||
k8s-dns-dnsmasq-nanny-amd64:$kube_dns_version
|
||||
pause-amd64:$pause_version"
|
||||
|
||||
control="
|
||||
kube-apiserver-amd64:$kube_version
|
||||
kube-controller-manager-amd64:$kube_version
|
||||
kube-scheduler-amd64:$kube_version
|
||||
etcd-amd64:$etcd_version"
|
||||
|
||||
for i in $common $control ; do
|
||||
docker image pull "$repo/$i" 1>&2
|
||||
done
|
||||
|
||||
oi() {
|
||||
local i="$1"
|
||||
digest=$(docker image inspect --format '{{index .RepoDigests 0}}' "$repo/$i")
|
||||
i=$(echo "${i}@${digest#*@}" | sed -e 's/:/\\:/g')
|
||||
echo " \\"
|
||||
echo -n " ${i}"
|
||||
}
|
||||
|
||||
rm -f $t
|
||||
echo "# autogenerated by mkversions"
|
||||
echo -n "COMMON_IMAGES :="
|
||||
for i in $common ; do
|
||||
oi "$i"
|
||||
done
|
||||
echo ""
|
||||
echo ""
|
||||
echo -n "CONTROL_PLANE_IMAGES :="
|
||||
for i in $control ; do
|
||||
oi "$i"
|
||||
done
|
||||
echo ""
|
||||
@ -1,13 +0,0 @@
|
||||
# autogenerated by mkversions
|
||||
COMMON_IMAGES := \
|
||||
kube-proxy-amd64\:v1.8.2@sha256\:8b81f3be506ca13df59731a75cc7795aeeff64cad48202067b431b9c2a4d91a9 \
|
||||
k8s-dns-sidecar-amd64\:1.14.5@sha256\:9aab42bf6a2a068b797fe7d91a5d8d915b10dbbc3d6f2b10492848debfba6044 \
|
||||
k8s-dns-kube-dns-amd64\:1.14.5@sha256\:1a3fc069de481ae690188f6f1ba4664b5cc7760af37120f70c86505c79eea61d \
|
||||
k8s-dns-dnsmasq-nanny-amd64\:1.14.5@sha256\:46b933bb70270c8a02fa6b6f87d440f6f1fce1a5a2a719e164f83f7b109f7544 \
|
||||
pause-amd64\:3.0@sha256\:163ac025575b775d1c0f9bf0bdd0f086883171eb475b5068e7defa4ca9e76516
|
||||
|
||||
CONTROL_PLANE_IMAGES := \
|
||||
kube-apiserver-amd64\:v1.8.2@sha256\:3e980f4b57292568ea8c87be462cf0583e40bbc2dbfff71d0d9e19beda3cb74b \
|
||||
kube-controller-manager-amd64\:v1.8.2@sha256\:c2cd4acd4238b2f2526abf5ba546d4e6f4a46618ad5747a539e8a72c294a7482 \
|
||||
kube-scheduler-amd64\:v1.8.2@sha256\:7c920b718509e8cf811c69178526d84ebfab2bdbb95949f6e82eb5233e7b5f0e \
|
||||
etcd-amd64\:3.0.17@sha256\:d83d3545e06fb035db8512e33bd44afb55dea007a3abd7b17742d3ac6d235940
|
||||
@ -1,61 +0,0 @@
|
||||
kernel:
|
||||
image: linuxkit/kernel:4.9.62
|
||||
cmdline: "console=tty0 console=ttyS0"
|
||||
init:
|
||||
- linuxkit/init:42a92119e1ca10380e0d33e26c0cbcf85b9b3558
|
||||
- linuxkit/runc:1b0741d07949c0acc444cd6a04ee7f833443579d
|
||||
- linuxkit/containerd:bfb61cc1d26c39cd4b2bc08f7a9963fefa0ef3bf
|
||||
- linuxkit/ca-certificates:af4880e78edc28743f7c5e262678c67c6add4c26
|
||||
onboot:
|
||||
- name: sysctl
|
||||
image: linuxkit/sysctl:a9ad57ed738a31ea9380cd73236866c312b35489
|
||||
binds:
|
||||
- /etc/sysctl.d/01-kubernetes.conf:/etc/sysctl.d/01-kubernetes.conf
|
||||
readonly: false
|
||||
- name: sysfs
|
||||
image: linuxkit/sysfs:5367b46211882278b84a9e8048855ca5df65beda
|
||||
- name: dhcpcd
|
||||
image: linuxkit/dhcpcd:48831507404049660b960e4055f544917d90378e
|
||||
command: ["/sbin/dhcpcd", "--nobackground", "-f", "/dhcpcd.conf", "-1"]
|
||||
- name: metadata
|
||||
image: linuxkit/metadata:026aca5c08c22589a7e319f79449bef2c65f04c5
|
||||
- name: format
|
||||
image: linuxkit/format:6b46d0450082f397177da36be6b4d74d93eacd1e
|
||||
- name: mounts
|
||||
image: linuxkit/mount:41685ecc8039643948e5dff46e17584753469a7a
|
||||
command: ["/usr/bin/mountie", "/var/lib/"]
|
||||
services:
|
||||
- name: getty
|
||||
image: linuxkit/getty:6af22c32c98536a79230eef000e9abd06b037faa
|
||||
env:
|
||||
- INSECURE=true
|
||||
- name: rngd
|
||||
image: linuxkit/rngd:842e5e8ece7934f0cab9fd0027b595ff3471e5b9
|
||||
- name: ntpd
|
||||
image: linuxkit/openntpd:07a80c3e3e816658318ac027e1253ff9a228b8de
|
||||
- name: sshd
|
||||
image: linuxkit/sshd:b7f21ef1b13300a994e35eac3644e4f84f0ada8a
|
||||
- name: kubelet
|
||||
image: linuxkitprojects/kubelet:4f93f02fb13f8c3e98e922afb2ef8cd1e0da66b3
|
||||
files:
|
||||
- path: etc/linuxkit.yml
|
||||
metadata: yaml
|
||||
- path: /etc/kubernetes
|
||||
symlink: "/var/lib/kubeadm"
|
||||
- path: /etc/os-release
|
||||
contents: |
|
||||
PRETTY_NAME="LinuxKit Kubernetes Project"
|
||||
- path: /usr/libexec/kubernetes/kubelet-plugins
|
||||
symlink: "/var/lib/kubelet-plugins"
|
||||
- path: /etc/kubeadm/
|
||||
directory: true
|
||||
- path: /etc/sysctl.d/01-kubernetes.conf
|
||||
contents: 'net.ipv4.ip_forward = 1'
|
||||
- path: /opt/cni
|
||||
directory: true
|
||||
- path: /etc/cni
|
||||
directory: true
|
||||
- path: root/.ssh/authorized_keys
|
||||
source: ~/.ssh/id_rsa.pub
|
||||
mode: "0600"
|
||||
optional: true
|
||||
@ -1,78 +0,0 @@
|
||||
FROM linuxkit/alpine:07f7d136e427dc68154cd5edbb2b9576f9ac5213 AS build
|
||||
|
||||
ENV kubernetes_version v1.8.2
|
||||
ENV cni_version v0.6.0
|
||||
|
||||
RUN apk add -U --no-cache \
|
||||
bash \
|
||||
coreutils \
|
||||
curl \
|
||||
findutils \
|
||||
git \
|
||||
go \
|
||||
grep \
|
||||
libc-dev \
|
||||
linux-headers \
|
||||
make \
|
||||
rsync \
|
||||
&& true
|
||||
|
||||
ENV GOPATH=/go PATH=$PATH:/go/bin
|
||||
|
||||
ENV KUBERNETES_URL https://github.com/kubernetes/kubernetes.git
|
||||
#ENV KUBERNETES_BRANCH pull/NNN/head
|
||||
ENV KUBERNETES_COMMIT ${kubernetes_version}
|
||||
RUN mkdir -p $GOPATH/src/github.com/kubernetes && \
|
||||
cd $GOPATH/src/github.com/kubernetes && \
|
||||
git clone $KUBERNETES_URL kubernetes
|
||||
WORKDIR $GOPATH/src/github.com/kubernetes/kubernetes
|
||||
RUN set -e; \
|
||||
if [ -n "$KUBERNETES_BRANCH" ] ; then \
|
||||
git fetch origin "$KUBERNETES_BRANCH"; \
|
||||
fi; \
|
||||
git checkout $KUBERNETES_COMMIT
|
||||
|
||||
RUN make WHAT="cmd/kubelet cmd/kubectl cmd/kubeadm"
|
||||
|
||||
RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
|
||||
#coreutils needed for du -B for disk image checks made by kubelet
|
||||
# example: $ du -s -B 1 /var/lib/kubelet/pods/...
|
||||
# du: unrecognized option: B
|
||||
RUN apk add --no-cache --initdb -p /out \
|
||||
alpine-baselayout \
|
||||
busybox \
|
||||
ca-certificates \
|
||||
coreutils \
|
||||
curl \
|
||||
ebtables \
|
||||
ethtool \
|
||||
iproute2 \
|
||||
iptables \
|
||||
libc6-compat \
|
||||
musl \
|
||||
openssl \
|
||||
socat \
|
||||
util-linux \
|
||||
&& true
|
||||
|
||||
RUN cp _output/bin/kubelet /out/usr/bin/kubelet
|
||||
RUN cp _output/bin/kubeadm /out/usr/bin/kubeadm
|
||||
RUN cp _output/bin/kubectl /out/usr/bin/kubectl
|
||||
|
||||
# Remove apk residuals. We have a read-only rootfs, so apk is of no use.
|
||||
RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache
|
||||
|
||||
RUN rmdir /out/var/run && ln -nfs /run /out/var/run
|
||||
|
||||
RUN curl -fSL -o /out/root/cni.tgz https://github.com/containernetworking/plugins/releases/download/${cni_version}/cni-plugins-amd64-${cni_version}.tgz
|
||||
|
||||
ADD kubelet.sh /out/usr/bin/kubelet.sh
|
||||
ADD kubeadm-init.sh /kubeadm-init.sh
|
||||
RUN sed -e "s/@KUBERNETES_VERSION@/${kubernetes_version}/g" </kubeadm-init.sh >/out/usr/bin/kubeadm-init.sh && chmod +x /out/usr/bin/kubeadm-init.sh
|
||||
|
||||
FROM scratch
|
||||
WORKDIR /
|
||||
ENTRYPOINT ["/usr/bin/kubelet.sh"]
|
||||
COPY --from=build /out /
|
||||
ENV KUBECONFIG "/etc/kubernetes/admin.conf"
|
||||
LABEL org.mobyproject.config='{"binds": ["/dev:/dev", "/etc/resolv.conf:/etc/resolv.conf", "/etc/os-release:/etc/os-release", "/run:/run:rshared,rbind", "/var:/var:rshared,rbind", "/var/lib/kubeadm:/etc/kubernetes", "/etc/kubelet.sh.conf:/etc/kubelet.sh.conf", "/etc/kubeadm:/etc/kubeadm", "/var/lib/kubelet-plugins:/usr/libexec/kubernetes/kubelet-plugins:rshared,rbind"], "mounts": [{"type": "cgroup", "options": ["rw","nosuid","noexec","nodev","relatime"]}], "capabilities": ["all"], "rootfsPropagation": "shared", "pid": "host", "runtime": {"mkdir": ["/var/lib/kubeadm", "/var/lib/cni/etc", "/var/lib/cni/opt", "/var/lib/kubelet-plugins"], "mounts": [{"type": "bind", "source": "/var/lib/cni/opt", "destination": "/opt/cni", "options": ["rw", "bind"]}, {"type": "bind", "source": "/var/lib/cni/etc", "destination": "/etc/cni", "options": ["rw", "bind"]}]}}'
|
||||
@ -1,6 +0,0 @@
|
||||
org: linuxkitprojects
|
||||
image: kubelet
|
||||
network: true
|
||||
disable-content-trust: true
|
||||
arches:
|
||||
- amd64
|
||||
@ -1,39 +0,0 @@
|
||||
#!/bin/sh
|
||||
set -e
|
||||
touch /var/lib/kubeadm/.kubeadm-init.sh-started
|
||||
if [ -f /etc/kubeadm/kubeadm.yaml ]; then
|
||||
echo Using the configuration from /etc/kubeadm/kubeadm.yaml
|
||||
if [ $# -ne 0 ] ; then
|
||||
echo WARNING: Ignoring command line options: $@
|
||||
fi
|
||||
kubeadm init --skip-preflight-checks --config /etc/kubeadm/kubeadm.yaml
|
||||
else
|
||||
kubeadm init --skip-preflight-checks --kubernetes-version @KUBERNETES_VERSION@ $@
|
||||
fi
|
||||
|
||||
if [ -d /var/config/cni/etc/net.d ]; then
|
||||
cp /var/config/cni/etc/net.d/* /var/lib/cni/etc/net.d/
|
||||
fi
|
||||
# sorting by basename relies on the dirnames having the same number of directories
|
||||
YAML=$(ls -1 /var/config/kube-system.init/*.yaml /etc/kubeadm/kube-system.init/*.yaml 2>/dev/null | sort --field-separator=/ --key=5)
|
||||
for i in ${YAML}; do
|
||||
n=$(basename "$i")
|
||||
if [ -e "$i" ] ; then
|
||||
if [ ! -s "$i" ] ; then # ignore zero sized files
|
||||
echo "Ignoring zero size file $n"
|
||||
continue
|
||||
fi
|
||||
echo "Applying $n"
|
||||
if ! kubectl create -n kube-system -f "$i" ; then
|
||||
touch /var/lib/kubeadm/.kubeadm-init.sh-kube-system.init-failed
|
||||
touch /var/lib/kubeadm/.kubeadm-init.sh-kube-system.init-"$n"-failed
|
||||
echo "Failed to apply $n"
|
||||
continue
|
||||
fi
|
||||
fi
|
||||
done
|
||||
if [ -f /var/config/kubeadm/untaint-master ] ; then
|
||||
echo "Removing \"node-role.kubernetes.io/master\" taint from all nodes"
|
||||
kubectl taint nodes --all node-role.kubernetes.io/master-
|
||||
fi
|
||||
touch /var/lib/kubeadm/.kubeadm-init.sh-finished
|
||||
@ -1,72 +0,0 @@
|
||||
#!/bin/sh
|
||||
# Kubelet outputs only to stderr, so arrange for everything we do to go there too
|
||||
exec 1>&2
|
||||
|
||||
if [ -e /etc/kubelet.sh.conf ] ; then
|
||||
. /etc/kubelet.sh.conf
|
||||
fi
|
||||
|
||||
if [ -f /var/config/kubelet/disabled ] ; then
|
||||
echo "kubelet.sh: /var/config/kubelet/disabled file is present, exiting"
|
||||
exit 0
|
||||
fi
|
||||
if [ -n "$KUBELET_DISABLED" ] ; then
|
||||
echo "kubelet.sh: KUBELET_DISABLED environ variable is set, exiting"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
if [ ! -e /var/lib/cni/.opt.defaults-extracted ] ; then
|
||||
mkdir -p /var/lib/cni/opt/bin
|
||||
tar -xzf /root/cni.tgz -C /var/lib/cni/opt/bin
|
||||
touch /var/lib/cni/.opt.defaults-extracted
|
||||
fi
|
||||
|
||||
await=/etc/kubernetes/kubelet.conf
|
||||
|
||||
if [ -f "/etc/kubernetes/kubelet.conf" ] ; then
|
||||
echo "kubelet.sh: kubelet already configured"
|
||||
elif [ -d /var/config/kubeadm ] ; then
|
||||
if [ -f /var/config/kubeadm/init ] ; then
|
||||
echo "kubelet.sh: init cluster with metadata \"$(cat /var/config/kubeadm/init)\""
|
||||
# This needs to be in the background since it waits for kubelet to start.
|
||||
# We skip printing the token so it is not persisted in the log.
|
||||
kubeadm-init.sh --skip-token-print $(cat /var/config/kubeadm/init) &
|
||||
elif [ -e /var/config/kubeadm/join ] ; then
|
||||
echo "kubelet.sh: joining cluster with metadata \"$(cat /var/config/kubeadm/join)\""
|
||||
kubeadm join --skip-preflight-checks $(cat /var/config/kubeadm/join)
|
||||
await=/etc/kubernetes/bootstrap-kubelet.conf
|
||||
fi
|
||||
elif [ -e /var/config/userdata ] ; then
|
||||
echo "kubelet.sh: joining cluster with metadata \"$(cat /var/config/userdata)\""
|
||||
kubeadm join --skip-preflight-checks $(cat /var/config/userdata)
|
||||
await=/etc/kubernetes/bootstrap-kubelet.conf
|
||||
fi
|
||||
|
||||
echo "kubelet.sh: waiting for ${await}"
|
||||
# TODO(ijc) is there a race between kubeadm creating this file and
|
||||
# finishing the write where we might be able to fall through and
|
||||
# start kubelet with an incomplete configuration file? I've tried
|
||||
# to provoke such a race without success. An explicit
|
||||
# synchronisation barrier or changing kubeadm to write
|
||||
# kubelet.conf atomically might be good in any case.
|
||||
until [ -f "${await}" ] ; do
|
||||
sleep 1
|
||||
done
|
||||
|
||||
echo "kubelet.sh: ${await} has arrived" 2>&1
|
||||
|
||||
mkdir -p /etc/kubernetes/manifests
|
||||
|
||||
exec kubelet --kubeconfig=/etc/kubernetes/kubelet.conf \
|
||||
--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf \
|
||||
--pod-manifest-path=/etc/kubernetes/manifests \
|
||||
--allow-privileged=true \
|
||||
--cluster-dns=10.96.0.10 \
|
||||
--cluster-domain=cluster.local \
|
||||
--cgroups-per-qos=false \
|
||||
--enforce-node-allocatable= \
|
||||
--network-plugin=cni \
|
||||
--cni-conf-dir=/var/lib/cni/etc/net.d \
|
||||
--cni-bin-dir=/var/lib/cni/opt/bin \
|
||||
--cadvisor-port=0 \
|
||||
$KUBELET_ARGS $@
|
||||
@ -1,18 +0,0 @@
|
||||
#!/bin/bash -eu
|
||||
|
||||
sshopts="-o LogLevel=FATAL \
|
||||
-o StrictHostKeyChecking=no \
|
||||
-o UserKnownHostsFile=/dev/null \
|
||||
-o IdentitiesOnly=yes"
|
||||
|
||||
case $(uname -s) in
|
||||
Linux)
|
||||
ssh=ssh
|
||||
;;
|
||||
*)
|
||||
ssh="docker run --rm -ti \
|
||||
-v $HOME/.ssh/:/root/.ssh \
|
||||
ijc25/alpine-ssh"
|
||||
;;
|
||||
esac
|
||||
$ssh $sshopts -t root@"$1" ctr tasks exec --tty --exec-id ssh-$(hostname)-$$ kubelet ash -l
|
||||
@ -1,3 +0,0 @@
|
||||
files:
|
||||
- path: /etc/kubeadm/kube-system.init/50-weave.yaml
|
||||
source: kube-weave.yaml
|
||||
Loading…
Reference in New Issue
Block a user