Merge pull request #3547 from edx/george/xenial-native-add-docker-role

Add role for installing Docker tools

docker/build/docker-tools/Dockerfile

+# To build this Dockerfile:
+#
+# From the root of configuration:
+#
+# docker build -f docker/build/docker-tools/Dockerfile .
+#
+# This allows the dockerfile to update /edx/app/edx_ansible/edx_ansible
+# with the currently checked-out configuration repo.
+
+FROM edxops/xenial-common:latest
+MAINTAINER edxops
+
+ENV PROGRAMS_VERSION=master
+ENV REPO_OWNER=edx
+
+ADD . /edx/app/edx_ansible/edx_ansible
+
+WORKDIR /edx/app/edx_ansible/edx_ansible/docker/plays
+
+COPY docker/build/docker-tools/ansible_overrides.yml /
+RUN /edx/app/edx_ansible/venvs/edx_ansible/bin/ansible-playbook docker-tools.yml \
+    -c local -i '127.0.0.1,' \
+    -t 'install'
+RUN which docker
+RUN which docker-compose

docker/build/docker-tools/ansible_overrides.yml

+---
+DOCKER_TLD: "edx"

docker/plays/docker-tools.yml

+- name: build a VM with docker-tools
+  hosts: all
+  sudo: True
+  gather_facts: True
+  roles:
+    - docker
+    - docker-tools

playbooks/roles/docker-tools/defaults/main.yml

+cache_valid_time: 3600
+
+docker_tools_deps_deb_pkgs:
+    - apt-transport-https
+    - ca-certificates
+    - python-pip
+
+docker_apt_keyserver: "hkp://ha.pool.sks-keyservers.net:80"
+docker_apt_key_id: "58118E89F3A912897C070ADBF76221572C52609D"
+docker_repo: "deb https://apt.dockerproject.org/repo ubuntu-xenial main"
+
+docker_group: "docker"
+docker_users: []

playbooks/roles/docker-tools/tasks/main.yml

+# Install docker-engine and docker-compose
+# Add users to docker group
+---
+- name: add docker group
+  group:
+    name: "{{ docker_group }}"
+  tags:
+    - install
+    - install:base
+
+- name: add users to docker group
+  user:
+    name: "{{ item }}"
+    groups: "{{ docker_group }}"
+    append: yes
+  with_items: "{{ docker_users }}"
+  tags:
+    - install
+    - install:base
+
+- name: install package dependencies
+  apt:
+    name: "{{ docker_tools_deps_deb_pkgs }}"
+    update_cache: yes
+    cache_valid_time: "{{ cache_valid_time }}"
+  tags:
+    - install
+    - install:system-requirements
+
+- name: add docker apt key
+  apt_key:
+    keyserver: "{{ docker_apt_keyserver }}"
+    id: "{{ docker_apt_key_id }}"
+  tags:
+    - install
+    - install:configuration
+
+- name: add docker repo
+  apt_repository:
+    repo: "{{ docker_repo }}"
+  tags:
+    - install
+    - install:configuration
+
+- name: install docker-engine
+  apt:
+    name: "docker-engine"
+    update_cache: yes
+    cache_valid_time: "{{ cache_valid_time }}"
+  tags:
+    - install
+    - install:system-requirements
+
+- name: start docker service
+  service:
+    name: docker
+    enabled: yes
+    state: started
+  tags:
+    - install
+    - install:configuration
+
+- name: install docker-compose
+  pip:
+    name: "docker-compose"
+  tags:
+    - install
+    - install:system-requirements

util/parsefiles_config.yml

@@ -24,3 +24,4 @@ weights:
   - programs: 4
   - mysql: 2
   - elasticsearch: 7
+  - docker-tools: 3