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Switch to debian repos, docker-compose workaround, add docker_users task #6

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14 changes: 14 additions & 0 deletions README.md
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@@ -1,3 +1,17 @@
# docker

Install [docker](https://docker.io) on a debian system

| Variable | Default | Description |
| ------------------------ | ------- | ----------- |
| `docker_install_compose` | `False` | If set to true, docker-compose will be installed |
| `docker_users` | `[]` | List of users that shall be added to the docker-group |


# docker-compose workaround

Optionally installs docker-compose when docker_install_compose is set to True.
This will also install `gnupg2` and `pass`; this is necessary because otherwise it
will break `docker login` as the dependency `golang-docker-credential-helpers`
is broken. Installing `gnupg2` and `pass` makes `docker login` use these instead
of the broken package. Refer to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910823 .
3 changes: 1 addition & 2 deletions defaults/main.yml
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---
docker_apt_repo: deb [arch=amd64] https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable
docker_install_compose: False

docker_users: []
62 changes: 0 additions & 62 deletions files/docker.gpg
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42 changes: 11 additions & 31 deletions tasks/main.yml
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---
- name: Add Docker repository key
become: True
apt_key:
data: "{{ lookup('file', 'files/docker.gpg') }}"
state: present

- name: Remove old docker repo
become: True
apt_repository:
repo: "deb https://apt.dockerproject.org/repo debian-{{ ansible_distribution_release }} main"
mode: "0644"
state: absent

- name: Remove old docker repository key
become: True
apt_key:
id: "58118E89F3A912897C070ADBF76221572C52609D"
keyserver: "hkp://p80.pool.sks-keyservers.net:80"
state: absent

- name: Add docker APT repo
become: True
apt_repository:
repo: "{{ docker_apt_repo }}"
mode: "0644"
state: present

- name: Add docker group
become: True
group:
name: docker
state: present

- name: Add docker_users to the docker group
become: True
user:
name: "{{ item }}"
groups: docker
append: yes
loop: "{{ docker_users }}"

- name: Install docker packages
become: True
apt:
name:
- docker-ce
- docker-ce-cli
- containerd.io
- docker.io
state: present
update_cache: yes
cache_valid_time: 1800
Expand All @@ -48,7 +27,8 @@
apt:
name:
- docker-compose
- gnupg2
- pass
state: present
update_cache: yes
cache_valid_time: 1800