Cache Kubernetes images, update image names, add boot-master.sh

Signed-off-by: Ilya Dmitrichenko <errordeveloper@gmail.com>

projects/kubernetes/.gitignore

@@ -0,0 +1,4 @@
+image-cache/common/*.tar
+image-cache/common/Dockerfile
+image-cache/control-plane/*.tar
+image-cache/control-plane/Dockerfile

projects/kubernetes/Boxfile

@@ -83,8 +83,7 @@ def create_kubelet_wrapper
 end
 
 def create_kubeadm_wrappers
-  #create_shell_wrapper 'env KUBE_KUBERNETES_DIR=/var/lib/kubeadm kubeadm init --skip-preflight-checks --kubernetes-version v1.6.1 --cert-dir /var/lib/kubeadm/pki', '/usr/bin/kubeadm-init.sh'
-  create_shell_wrapper "kubeadm init --skip-preflight-checks --kubernetes-version v1.6.1", '/usr/bin/kubeadm-init.sh'
+  create_shell_wrapper "kubeadm init --skip-preflight-checks --kubernetes-version #{@versions[:kubernetes]}", '/usr/bin/kubeadm-init.sh'
 end
 
 install_dependencies

projects/kubernetes/Makefile

@@ -8,10 +8,44 @@ build-container-images: Boxfile
 	    boxbuilder/box:master Boxfile
 
 push-container-images: build-container-image
-	docker push mobylinux/kubernetes:latest
+	docker image push mobylinux/kubernetes:latest
+	docker image push mobylinux/kubernetes:latest-image-cache-common
+	docker image push mobylinux/kubernetes:latest-image-cache-control-plane
 
 build-vm-images:
 	../../bin/moby build -name kube-master kube-master.yml
 
 clean:
-	rm -f kube-master-bzImage kube-master-cmdline kube-master-disk.img kube-master-initrd.img 
+	rm -f -r \
+	  kube-master-bzImage kube-master-cmdline kube-master-disk.img kube-master-initrd.img \
+	  image-cache/common image-cache/control-plane
+
+COMMON_IMAGES := \
+  kube-proxy-amd64:v1.6.1 \
+  k8s-dns-sidecar-amd64:1.14.1 \
+  k8s-dns-kube-dns-amd64:1.14.1 \
+  k8s-dns-dnsmasq-nanny-amd64:1.14.1 \
+  pause-amd64:3.0
+
+CONTROL_PLANE_IMAGES := \
+  kube-apiserver-amd64:v1.6.1 \
+  kube-controller-manager-amd64:v1.6.1 \
+  kube-scheduler-amd64:v1.6.1 \
+  etcd-amd64:3.0.17
+
+image-cache/%.tar:
+	mkdir -p $(dir $@)
+	DOCKER_CONTENT_TRUST=1 docker image pull gcr.io/google_containers/$(shell basename $@ .tar)
+	docker image save -o $@ gcr.io/google_containers/$(shell basename $@ .tar)
+
+cache-images:
+	for image in $(COMMON_IMAGES) ; \
+	  do $(MAKE) "image-cache/common/$${image}.tar" \
+	  ; done
+	cp image-cache/Dockerfile image-cache/common
+	docker image build -t mobylinux/kubernetes:latest-image-cache-common image-cache/common
+	for image in $(CONTROL_PLANE_IMAGES) ; \
+	  do $(MAKE) "image-cache/control-plane/$${image}.tar" \
+	  ; done
+	cp image-cache/Dockerfile image-cache/control-plane
+	docker image build -t mobylinux/kubernetes:latest-image-cache-control-plane image-cache/control-plane

projects/kubernetes/README.md

@@ -11,7 +11,7 @@ make
 
 Boot Kubernetes master OS image using `hyperkit` on macOS:
 ```
-../../bin/moby run hyperkit -cpus 2 -mem 4096 -disk-size 2048 kube-master
+./boot-master.sh
 ```
 
 Manually initialise master with `kubeadm`:

projects/kubernetes/boot-master.sh

@@ -0,0 +1,3 @@
+#!/bin/bash -eux
+rm -f kube-master-disk.img
+../../bin/moby run hyperkit -cpus 2 -mem 4096 -disk-size 2048 kube-master

projects/kubernetes/image-cache/Dockerfile

@@ -0,0 +1,6 @@
+FROM mobylinux/docker-ce:741bf21513328f674e0cdcaa55492b0b75974e08
+
+ADD . /images
+
+ENTRYPOINT [ "/bin/sh", "-c" ]
+CMD [ "for image in /images/*.tar ; do docker image load -i $image ; done" ]

projects/kubernetes/kube-master.yml

@@ -77,8 +77,16 @@ services:
      - /var:/var:rshared,rbind
      - /var/lib/kubeadm:/etc/kubernetes
     rootfsPropagation: shared
+  - name: kubernetes-image-cache-common
+    image: "mobylinux/kubernetes:latest-image-cache-common"
+    binds:
+      - /var/run:/var/run
+  - name: kubernetes-image-cache-control-plane
+    image: "mobylinux/kubernetes:latest-image-cache-control-plane"
+    binds:
+      - /var/run:/var/run
   - name: kubelet
-    image: "errordeveloper/mobykube:master"
+    image: "mobylinux/kubernetes:latest"
     capabilities:
      - all
     net: host