Merge "Update Dockerfile to allow override of FROM variable"

Makefile

@@ -31,6 +31,7 @@ IMAGE_NAME      := maas-rack-controller maas-region-controller sstream-cache
 BUILD_DIR         := $(shell mktemp -d)
 HELM              := $(BUILD_DIR)/helm
 SSTREAM_IMAGE     := "https://images.maas.io/ephemeral-v3/daily/"
+UBUNTU_BASE_IMAGE ?= ubuntu:16.04
 
 .PHONY: images
 #Build all images in the list
@@ -66,16 +67,21 @@ helm-install:
 .PHONY: build
 build:
 ifeq ($(USE_PROXY), true)
-	docker build -t $(IMAGE) --network=host --label $(LABEL) -f $(IMAGE_DIR)/Dockerfile --build-arg SSTREAM_IMAGE=$(SSTREAM_IMAGE) \
+	docker build -t $(IMAGE) --network=host --label $(LABEL) -f $(IMAGE_DIR)/Dockerfile \
+		--build-arg FROM=$(UBUNTU_BASE_IMAGE) \
 		--build-arg http_proxy=$(PROXY) \
 		--build-arg https_proxy=$(PROXY) \
 		--build-arg HTTP_PROXY=$(PROXY) \
 		--build-arg HTTPS_PROXY=$(PROXY) \
 		--build-arg no_proxy=$(NO_PROXY) \
 		--build-arg NO_PROXY=$(NO_PROXY) \
+                --build-arg SSTREAM_IMAGE=$(SSTREAM_IMAGE) \
 		$(IMAGE_DIR)
 else
-	docker build -t $(IMAGE) --network=host --label $(LABEL) --build-arg SSTREAM_IMAGE=$(SSTREAM_IMAGE) -f $(IMAGE_DIR)/Dockerfile $(IMAGE_DIR)
+	docker build -t $(IMAGE) --network=host --label $(LABEL) -f $(IMAGE_DIR)/Dockerfile \
+		--build-arg FROM=$(UBUNTU_BASE_IMAGE) \
+		--build-arg SSTREAM_IMAGE=$(SSTREAM_IMAGE) \
+		$(IMAGE_DIR)
 endif
 ifeq ($(PUSH_IMAGE), true)
 	docker push $(IMAGE)

images/maas-rack-controller/Dockerfile

@@ -1,4 +1,5 @@
-FROM ubuntu:16.04
+ARG FROM=ubuntu:16.04
+FROM ${FROM}
 
 ENV DEBIAN_FRONTEND noninteractive
 ENV container docker

images/maas-region-controller/Dockerfile

@@ -1,4 +1,5 @@
-FROM ubuntu:16.04
+ARG FROM=ubuntu:16.04
+FROM ${FROM}
 
 ENV DEBIAN_FRONTEND noninteractive
 ENV container docker

images/sstream-cache/Dockerfile

@@ -1,4 +1,5 @@
-FROM ubuntu:16.04
+ARG FROM=ubuntu:16.04
+FROM ${FROM}
 
 ARG SSTREAM_IMAGE=https://images.maas.io/ephemeral-v3/daily/
 ENV IMAGE_SRC ${SSTREAM_IMAGE}

tools/gate/playbooks/docker-image-build.yaml

@@ -14,6 +14,8 @@
 
 - hosts: primary
   tasks:
+    - include_vars: vars.yaml
+
     - name: Debug tag generation inputs
       block:
         - debug:
@@ -39,16 +41,47 @@
         var: image_tags
 
     - name: Install Docker (Debian)
+      when: ansible_os_family == 'Debian'
       block:
+        - file:
+            path: "{{ item }}"
+            state: directory
+          with_items:
+            - /etc/docker/
+            - /etc/systemd/system/docker.service.d/
+            - /var/lib/docker/
+        - mount:
+            path: /var/lib/docker/
+            src: tmpfs
+            fstype: tmpfs
+            opts: size=25g
+            state: mounted
+        - copy: "{{ item }}"
+          with_items:
+            - content: "{{ docker_daemon | to_json }}"
+              dest: /etc/docker/daemon.json
+            - src: files/docker-systemd.conf
+              dest: /etc/systemd/system/docker.service.d/
+        - apt_key:
+            url: https://download.docker.com/linux/ubuntu/gpg
+        - apt_repository:
+            repo: deb http://{{ zuul_site_mirror_fqdn }}/deb-docker xenial stable
         - apt:
             name: "{{ item }}"
+            allow_unauthenticated: True
           with_items:
-            - docker.io
+            - docker-ce
             - python-pip
-          when: ansible_os_family == 'Debian'
         - pip:
             name: docker
             version: 2.7.0
+        # NOTE(SamYaple): Allow all connections from containers to host so the
+        # containers can access the http server for git and wheels
+        - iptables:
+            action: insert
+            chain: INPUT
+            in_interface: docker0
+            jump: ACCEPT
       become: True
 
     - name: Make images

tools/gate/playbooks/files/docker-systemd.conf

@@ -0,0 +1,8 @@
+# NOTE(SamYaple): CentOS cannot be build with userns-remap enabled. httpd uses
+# cap_set_file capability and there is no way to pass that in at build as of
+# docker 17.06.
+# TODO(SamYaple): Periodically check to see if this is possible in newer
+# versions of Docker
+[Service]
+ExecStart=
+ExecStart=/usr/bin/dockerd

tools/gate/playbooks/vars.yaml

@@ -0,0 +1,20 @@
+# Copyright 2017 The Openstack-Helm Authors.
+#
+# 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.
+
+docker_daemon:
+  group: zuul
+  registry-mirrors:
+    - "http://{{ zuul_site_mirror_fqdn }}:8082/"
+  storage-driver: overlay2
+  debug: True