boot2docker: add cluster bootstrap and doc

build/common.sh

@@ -88,6 +88,7 @@ readonly KUBE_RUN_IMAGES=(
   proxy
   scheduler
   kubelet
+  bootstrap
 )
 
 

build/make-run-images.sh

@@ -24,6 +24,7 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_BUILD_RUN_IMAGES=y
 source "$KUBE_ROOT/build/common.sh"
 
 kube::build::verify_prereqs

build/run-images/bootstrap/Dockerfile

@@ -0,0 +1,22 @@
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# 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.
+
+# This file creates a minimal container for running Kubernetes binaries
+
+FROM  kubernetes
+MAINTAINER  Johan Euphrosine <proppy@google.com>
+
+ADD . /kubernetes
+
+CMD ["/kubernetes/run.sh"]

build/run-images/bootstrap/run.sh

@@ -0,0 +1,56 @@
+#! /bin/bash
+
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# 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.
+
+# see https://github.com/docker/docker/issues/8395
+HOST_IP=$(ip route show 0.0.0.0/0 | grep -Eo 'via \S+' | awk '{ print $2 }')
+
+KUBELET_IP=$(hostname -i)
+
+cat <<EOF > pod.yaml
+version: v1beta1
+id: cluster-pod
+containers:
+  - name: etcd
+    image: coreos/etcd
+    command: ["-vv"]
+    ports:
+      - name: etcd-port
+        hostPort: 4001
+        containerPort: 4001
+        protocol: TCP
+  - name: apiserver
+    image: kubernetes
+    imagePullPolicy: never
+    ports:
+      - name: apiserver-port
+        hostPort: 8080
+        containerPort: 8080
+        protocol: TCP
+    command: ["/kubernetes/apiserver", "-v=5", "-address=0.0.0.0", "-etcd_servers=http://127.0.0.1:4001", "-machines=${KUBELET_IP}"]
+  - name: controller-manager
+    image: kubernetes
+    imagePullPolicy: never
+    command: ["/kubernetes/controller-manager", "-v=5", "-master=127.0.0.1:8080"]
+  - name: proxy
+    image: kubernetes
+    imagePullPolicy: never
+    command: ["/kubernetes/proxy", "-v=5", "-etcd_servers=http://127.0.0.1:4001"]
+  - name: scheduler
+    image: kubernetes
+    imagePullPolicy: never
+    command: ["/kubernetes/scheduler", "-v=5", "-master=127.0.0.1:8080"]
+EOF
+./kubelet -v=5 -address=0.0.0.0 -hostname_override=${KUBELET_IP} -etcd_servers=http://${HOST_IP}:4001 -config pod.yaml

build/run-images/controller-manager/Dockerfile

@@ -17,7 +17,6 @@
 FROM  kubernetes
 MAINTAINER  Joe Beda <jbeda@google.com>
 
-ENV ETCD_SERVERS http://127.0.0.1:4001
 ENV API_SERVER   127.0.0.1:8080
 
 ADD . /kubernetes