Docker role for Debian GNU/Linux

README.md

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+# Ansible roles

playbooks/docker.yml

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+- hosts: docker
+  sudo: True
+  gather_facts: True
+  roles:
+    - docker

roles/docker/handlers/main.yml

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+---
+- name: docker - start and enable
+  service: name=docker enabled=yes state=restarted

roles/docker/meta/main.yml

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+---
+galaxy_info:
+  author: Denis Ryabyy <vv1r0x@gmail.com>, Denis a.k.a Difrex Zheleztsov <difrex.punk@gmail.com>
+  description: Ansible role for installing docker for Debian.
+  min_ansible_version: 1.4
+  platforms:
+  - name: Debian
+    versions:
+    - wheezy
+    - jessie
+  categories:
+    - system
+dependencies:

roles/docker/tasks/docker.yml

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+---
+- name: Install docker deps
+  apt: pkg={{item}}
+  with_items:
+    - apt-transport-https
+    - ca-certificates
+    - bridge-utils
+
+- name: Remove old apt keys
+  apt_key: state=absent id={{item}}
+  with_items:
+    - D8576A8BA88D21E9
+
+- name: Add docker apt key
+  apt_key: keyserver=hkp://pgp.mit.edu id=58118E89F3A912897C070ADBF76221572C52609D
+
+- name: Remove old docker repos
+  apt_repository: repo='deb https://get.docker.com/ubuntu docker main' state=absent
+
+- name: add docker repo 
+  apt_repository: repo='deb https://apt.dockerproject.org/repo {{ansible_distribution | lower}}-{{ansible_distribution_release}} main' update_cache=yes
+
+- name: remove old docker package
+  apt: pkg=lxc-docker state=absent
+
+- name: install docker
+  apt: pkg=docker-engine
+  notify: docker - start and enable

roles/docker/tasks/grub.yml

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+---
+
+- name: Check if cgroup memory and swapaccount in kernel
+  shell: grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub | grep -c "cgroup_enable=memory swapaccount=1"
+  register: cgroup_status
+  ignore_errors: true
+
+- name: Enable cgroup memory and swapaccount
+  lineinfile: dest="/etc/default/grub" regexp='GRUB_CMDLINE_LINUX_DEFAULT="(.*)"' line='GRUB_CMDLINE_LINUX_DEFAULT="\1 cgroup_enable=memory swapaccount=1"' backrefs=yes
+  when: cgroup_status.stdout == "0"
+
+- name: update-grub
+  shell: update-grub2
+  when: cgroup_status.stdout == "0"
+
+- name: reboot if we need it
+  shell: sleep 2 && shutdown -r now "Ansible updates triggered"
+  async: 1 
+  poll: 0
+  ignore_errors: true
+  when: cgroup_status.stdout == "0"
+
+- name: waiting for server to come back
+  local_action: wait_for host={{ansible_fqdn}} state=started timeout=600 delay=15
+  sudo: false
+  when: cgroup_status.stdout == "0"
+

roles/docker/tasks/main.yml

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+---
+- include: grub.yml
+
+- include: docker.yml