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Robert Kaussow 9 months ago
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.gitignore View File

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# ---> Ansible
*.retry


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LICENSE View File

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MIT License

Copyright (c) <year> <copyright holders>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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README.md View File

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# sit-lnx.docker-engine

Install docker engine. Currently only overlay2 as storage engine is supported.

**Supported OS**
* RHEL7

### Role Variables

```yaml
---
dockerengine_package: docker
dockerengine_docker_group_enabled: False

dockerengine_secure_registries: []
dockerengine_insecure_registries: []
dockerengine_block_registries: []

# dockerengine_http_proxy: # defaults to not set
# dockerengine_https_proxy: # defaults to not set
# dockerengine_no_proxy: # defaults to not set

# All storage variables are mandatory. You have to set them correctly!
# dockerengine_storage_pvs: /dev/sdx # defaults to not set
dockerengine_storage_vg: vg_docker
dockerengine_storage_lv: lv_docker
dockerengine_storage_size: 100G
dockerengine_base_dir: /var/lib/docker
```

### Examples

#### Playbook

```yaml
---
- hosts: docker-engine
become: true

roles:
- sit-lnx.docker-engine
```

### Dependencies

* you need the `wrap` custom filter from

### Maintainer

[Robert Kaussow](https://gitea.rknet.org/xoxys)

### License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details

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defaults/main.yml View File

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---
dockerengine_package: docker
dockerengine_docker_group_enabled: False

dockerengine_secure_registries: []
dockerengine_insecure_registries: []
dockerengine_block_registries: []

# dockerengine_http_proxy: # defaults to not set
# dockerengine_https_proxy: # defaults to not set
# dockerengine_no_proxy: # defaults to not set

# dockerengine_storage_pvs: /dev/sdx # defaults to not set
dockerengine_storage_vg: vg_docker
dockerengine_storage_lv: lv_docker
dockerengine_storage_size: 100G
dockerengine_base_dir: /var/lib/docker

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handlers/main.yml View File

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---
- name: Restart docker engine
systemd:
state: restarted
name: "{{ dockerengine_package }}"
daemon_reload: yes
enabled: yes
listen: __docker_restart
become: True
become_user: root

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meta/main.yml View File

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---
galaxy_info:
author: Robert Kaussow
description: Install Docker Engine
license: MIT
min_ansible_version: 2.4
platforms:
- name: EL
versions:
- 7
galaxy_tags:
- docker
dependencies: []

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tasks/install.yml View File

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---
- block:
- name: Install docker engine
package:
name: "{{ dockerengine_package }}"
state: installed

- name: Add docker group
group:
name: docker
state: present
notify: __docker_restart
when: dockerengine_docker_group_enabled

- name: Deploy config files to setup environment
template:
src: "{{ item.src }}"
dest: "{{ item.dest }}"
owner: root
group: root
mode: 0644
with_items:
- { src: 'etc/sysconfig/docker.j2', dest: '/etc/sysconfig/{{ dockerengine_package }}' }
- { src: 'etc/sysconfig/docker-storage-setup.j2', dest: '/etc/sysconfig/{{ dockerengine_package }}-storage-setup' }
- { src: 'etc/containers/registries.conf.j2', dest: '/etc/containers/registries.conf' }
notify: __docker_restart

- name: Ensure docker engine is up and running
service:
name: "{{ dockerengine_package }}"
enabled: True
state: started
become: True
become_user: root

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tasks/main.yml View File

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---
- include_tasks: install.yml

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templates/etc/containers/registries.conf.j2 View File

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# {{ ansible_managed }}
# This is a system-wide configuration file used to
# keep track of registries for various container backends.
# It adheres to TOML format and does not support recursive
# lists of registries.

# The default location for this configuration file is /etc/containers/registries.conf.

# The only valid categories are: 'registries.search', 'registries.insecure',
# and 'registries.block'.

[registries.search]
#registries = ['registry.access.redhat.com']
registries = [{{ dockerengine_secure_registries | wrap | join(',') }}]

# If you need to access insecure registries, add the registry's fully-qualified name.
# An insecure registry is one that does not have a valid SSL certificate or only does HTTP.
[registries.insecure]
registries = [{{ dockerengine_insecure_registries | wrap | join(',') }}]


# If you need to block pull access from a registry, uncomment the section below
# and add the registries fully-qualified name.
#
# Docker only
[registries.block]
registries = [{{ dockerengine_block_registries | wrap | join(',') }}]

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templates/etc/sysconfig/docker-storage-setup.j2 View File

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# {{ ansible_managed }}
STORAGE_DRIVER=overlay2
DEVS={{ dockerengine_storage_pvs }}
CONTAINER_ROOT_LV_NAME={{ dockerengine_storage_lv }}
CONTAINER_ROOT_LV_SIZE={{ dockerengine_storage_size }}
CONTAINER_ROOT_LV_MOUNT_PATH={{ dockerengine_base_dir }}
VG={{ dockerengine_storage_vg }}

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templates/etc/sysconfig/docker.j2 View File

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## {{ ansible_managed }}
# /etc/sysconfig/docker

# Modify these options if you want to change the way the docker daemon runs
OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false'
if [ -z "${DOCKER_CERT_PATH}" ]; then
DOCKER_CERT_PATH=/etc/docker
fi

# Do not add registries in this file anymore. Use /etc/containers/registries.conf
# from the atomic-registries package.
#

# On an SELinux system, if you remove the --selinux-enabled option, you
# also need to turn on the docker_transition_unconfined boolean.
# setsebool -P docker_transition_unconfined 1

# Location used for temporary files, such as those created by
# docker load and build operations. Default is /var/lib/docker/tmp
# Can be overriden by setting the following environment variable.
# DOCKER_TMPDIR=/var/tmp

# Controls the /etc/cron.daily/docker-logrotate cron job status.
# To disable, uncomment the line below.
# LOGROTATE=false

# docker-latest daemon can be used by starting the docker-latest unitfile.
# To use docker-latest client, uncomment below lines
#DOCKERBINARY=/usr/bin/docker-latest
#DOCKERDBINARY=/usr/bin/dockerd-latest
#DOCKER_CONTAINERD_BINARY=/usr/bin/docker-containerd-latest
#DOCKER_CONTAINERD_SHIM_BINARY=/usr/bin/docker-containerd-shim-latest

# Proxy settings
{% if dockerengine_http_proxy is defined %}
HTTP_PROXY={{ dockerengine_http_proxy }}
{% endif %}
{% if dockerengine_https_proxy is defined %}
HTTPS_PROXY={{ dockerengine_https_proxy }}
{% endif %}
{% if dockerengine_no_proxy is defined %}
NO_PROXY={{ dockerengine_no_proxy|join(',') }}"
{% endif %}

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