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92 lines
3.5 KiB
Markdown
92 lines
3.5 KiB
Markdown
# Ansible Role: Docker
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[](https://travis-ci.org/geerlingguy/ansible-role-docker)
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An Ansible Role that installs [Docker](https://www.docker.com) on Linux.
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## Requirements
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None.
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## Role Variables
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Available variables are listed below, along with default values (see `defaults/main.yml`):
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# Edition can be one of: 'ce' (Community Edition) or 'ee' (Enterprise Edition).
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docker_edition: 'ce'
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docker_package: "docker-{{ docker_edition }}"
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docker_package_state: present
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The `docker_edition` should be either `ce` (Community Edition) or `ee` (Enterprise Edition). You can also specify a specific version of Docker to install using the distribution-specific format: Red Hat/CentOS: `docker-{{ docker_edition }}-<VERSION>`; Debian/Ubuntu: `docker-{{ docker_edition }}=<VERSION>`.
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You can control whether the package is installed, uninstalled, or at the latest version by setting `docker_package_state` to `present`, `absent`, or `latest`, respectively. Note that the Docker daemon will be automatically restarted if the Docker package is updated. This is a side effect of flushing all handlers (running any of the handlers that have been notified by this and any other role up to this point in the play).
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docker_service_state: started
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docker_service_enabled: true
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docker_restart_handler_state: restarted
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Variables to control the state of the `docker` service, and whether it should start on boot. If you're installing Docker inside a Docker container without systemd or sysvinit, you should set these to `stopped` and set the enabled variable to `no`.
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docker_install_compose: true
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docker_compose_version: "1.22.0"
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docker_compose_path: /usr/local/bin/docker-compose
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Docker Compose installation options.
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docker_apt_release_channel: stable
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docker_apt_arch: amd64
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docker_apt_repository: "deb [arch={{ docker_apt_arch }}] https://download.docker.com/linux/{{ ansible_distribution|lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
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docker_apt_ignore_key_error: True
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docker_apt_gpg_key: https://download.docker.com/linux/ubuntu/gpg
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(Used only for Debian/Ubuntu.) You can switch the channel to `edge` if you want to use the Edge release.
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docker_yum_repo_url: https://download.docker.com/linux/centos/docker-{{ docker_edition }}.repo
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docker_yum_repo_enable_edge: '0'
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docker_yum_repo_enable_test: '0'
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docker_yum_gpg_key: https://download.docker.com/linux/centos/gpg
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(Used only for RedHat/CentOS.) You can enable the Edge or Test repo by setting the respective vars to `1`.
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docker_users:
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- user1
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- user2
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A list of system users to be added to the `docker` group (so they can use Docker on the server).
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## Use with Ansible (and `docker` Python library)
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Many users of this role wish to also use Ansible to then _build_ Docker images and manage Docker containers on the server where Docker is installed. In this case, you can easily add in the `docker` Python library using the `geerlingguy.pip` role:
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```yaml
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- hosts: all
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vars:
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pip_install_packages:
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- name: docker
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roles:
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- geerlingguy.pip
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- geerlingguy.docker
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```
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## Dependencies
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None.
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## Example Playbook
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```yaml
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- hosts: all
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roles:
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- geerlingguy.docker
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```
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## License
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MIT / BSD
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## Author Information
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This role was created in 2017 by [Jeff Geerling](https://www.jeffgeerling.com/), author of [Ansible for DevOps](https://www.ansiblefordevops.com/).
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