It is an Ansible role to install Docker and optionally Docker Compose.
- Ubuntu 16.04 LTS (Xenial)
- Debian 8 (Jessie)
- Debian 9 (Stretch)
If you're like me, you probably love Docker. This role lets you install a specific version of Docker as well as Docker Compose.
If you don't know what Docker is, or are looking to become an expert with it then check out Dive Into Docker: The Complete Docker Course for Developers.
Below is a list of default values along with a description of what they do.
---
# Do you want to install Community Edition ('ce') or Enterprise Edition ('ee')?
docker_edition: 'ce'
# Do you want to install Docker through the 'stable' or 'edge' channel?
# Stable gets updated every quarter and Edge gets updated every month.
docker_channel: 'edge'
# What version of Docker do you want to install?
docker_version: '17.06.0'
# Optionally install a specific version of Docker Compose.
docker_install_docker_compose: True
docker_compose_version: '1.14.0'
# A list of users to be added to the Docker group. For example if you have a
# user of 'deploy', then you'll want to set docker_users: ['deploy'] here.
#
# Keep in mind this user needs to already exist, it will not be created here.
docker_users: []
# A list of Docker options as they would appear on the command line, such as:
# docker_options:
# - '--dns 8.8.8.8'
docker_options: []
# The APT GPG key id used to sign the Docker package.
docker_apt_key: '9DC858229FC7DD38854AE2D88D81803C0EBFCD88'
# The OS distribution and distribution release, thanks https://github.com/debops.
# Doing it this way doesn't depend on having lsb-release installed.
docker_distribution: '{{ ansible_local.core.distribution
if (ansible_local|d() and ansible_local.core|d() and
ansible_local.core.distribution|d())
else ansible_distribution }}'
docker_distribution_release: '{{ ansible_local.core.distribution_release
if (ansible_local|d() and ansible_local.core|d() and
ansible_local.core.distribution_release|d())
else ansible_distribution_release }}'
# Address of the Docker repository.
docker_repository: 'deb [arch=amd64] https://download.docker.com/linux/{{ docker_distribution | lower }} {{ docker_distribution_release }} {{ docker_channel }}'
# How long should the apt-cache last in seconds?
docker_apt_cache_time: 86400
For the sake of this example let's assume you have a group called app and
you have a typical site.yml file.
To use this role edit your site.yml file to look something like this:
---
- name: Configure app server(s)
hosts: app
become: True
roles:
- { role: nickjj.docker, tags: docker }
Let's say you want to add a deploy user to the Docker group, you can do this by
opening or creating group_vars/app.yml which is located relative to your
inventory directory and then making it look like this:
---
docker_users: ['deploy']
If you're looking for an Ansible role to create users, then check out my user role.
$ ansible-galaxy install nickjj.docker
You can find it on the official Ansible Galaxy if you want to rate it.
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