ansible/roles/docker/tasks/services/restic_backup.yml

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# vim: ft=yaml.ansible
---
- name: Create SSH directory
file:
path: "{{ services.restic.volume_folder }}/ssh"
owner: root
group: root
mode: '0700'
state: directory
- name: Copy private SSH key
copy:
dest: "{{ services.restic.volume_folder }}/ssh/id_ed25519"
owner: root
group: root
mode: '0600'
content: "{{ restic_secrets.ssh_privkey }}"
- name: Derive public SSH key
shell: >-
ssh-keygen -f {{ services.restic.volume_folder }}/ssh/id_ed25519 -y
> {{ services.restic.volume_folder }}/ssh/id_ed25519.pub
args:
creates: "{{ services.restic.volume_folder }}/ssh/id_ed25519.pub"
- name: Set file permissions on public SSH key
file:
path: "{{ services.restic.volume_folder }}/ssh/id_ed25519.pub"
owner: root
group: root
mode: '0644'
state: touch
- name: Create SSH config
template:
src: restic.ssh.config.j2
dest: "{{ services.restic.volume_folder }}/ssh/config"
owner: root
group: root
mode: '0600'
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- name: Setup restic backup
docker_compose:
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project_name: restic_backup
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pull: true
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definition:
version: '3.6'
services:
restic-backup:
image: mazzolino/restic:{{ services.restic.version }}
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restart: always
environment:
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RUN_ON_STARTUP: "false"
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BACKUP_CRON: "0 30 3 * * *"
RESTIC_REPOSITORY: "sftp:{{ services.restic.user }}@{{ services.restic.domain }}:{{ services.restic.repository }}"
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RESTIC_PASSWORD: "{{ restic_secrets.repository_password }}"
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RESTIC_BACKUP_SOURCES: "/mnt/volumes"
RESTIC_BACKUP_ARGS: >-
--tag datacoop-volumes
--exclude '*.tmp'
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--verbose
RESTIC_FORGET_ARGS: >-
--keep-last 10
--keep-daily 7
--keep-weekly 5
--keep-monthly 12
TZ: Europe/Copenhagen
volumes:
- "{{ services.restic.volume_folder }}/ssh:/run/secrets/.ssh:ro"
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- /docker-volumes:/mnt/volumes:ro
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restic-prune:
image: "mazzolino/restic:{{ services.restic.version }}"
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environment:
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RUN_ON_STARTUP: "false"
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PRUNE_CRON: "0 0 4 * * *"
RESTIC_REPOSITORY: "sftp:{{ services.restic.user }}@{{ services.restic.domain }}:{{ services.restic.repository }}"
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RESTIC_PASSWORD: "{{ restic_secrets.repository_password }}"
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TZ: Europe/copenhagen
volumes:
- "{{ services.restic.volume_folder }}/ssh:/run/secrets/.ssh:ro"