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feat(restic): add restic backup role #133

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saibotk merged 1 commit from restic into main 2025-05-12 00:44:34 +02:00
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saibotk commented 2025-03-31 01:45:23 +02:00
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Adds an opinionated backup solution for BTRFS volumes using
restic with the resticprofile tool.

By default, this will create a daily backup of the configured target directories.
It ensures that they are consistent by using the native BTRFS snapshot functionality.

Every week, on sunday night, it will check the integrity and prune old
snapshots.

Metrics are also exposed through resticprofile in prom format and
written to the /backup/status/status.prom file.

This role also allows to configure ntfy notifications for errors.

To query the repository and run various commands manually, we also
install the resticprofile helper script, that can be run as root.
Note: Backups cannot be done using the helper as the required mounts
are not included in the script.

We keep backups using the following retention strategy:

  • last 4 hourly
  • last 7 daily
  • last 4 weekly
  • last 3 monthly
  • backups done in the last 3 hours
  • tag "forever" -> forever
Adds an opinionated backup solution for BTRFS volumes using `restic` with the `resticprofile` tool. By default, this will create a daily backup of the configured target directories. It ensures that they are consistent by using the native BTRFS snapshot functionality. Every week, on sunday night, it will check the integrity and prune old snapshots. Metrics are also exposed through `resticprofile` in prom format and written to the `/backup/status/status.prom` file. This role also allows to configure ntfy notifications for errors. To query the repository and run various commands manually, we also install the `resticprofile` helper script, that can be run as root. Note: Backups cannot be done using the helper as the required mounts are not included in the script. We keep backups using the following retention strategy: - last 4 hourly - last 7 daily - last 4 weekly - last 3 monthly - backups done in the last 3 hours - tag "forever" -> forever
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saibotk self-assigned this 2025-03-31 01:45:23 +02:00
wip: resticprofile refactor
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TODO! NEEDS MORE TESTING & POLISHING
saibotk changed title from WIP: restic to feat(restic): add restic backup role 2025-04-27 22:19:55 +02:00
requested review from histalek 2025-04-27 22:20:41 +02:00
histalek reviewed 2025-04-28 19:15:39 +02:00
histalek left a comment
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two suggestions, otherwise LGTM :)

two suggestions, otherwise LGTM :)
roles/restic/defaults/main.yml Outdated
@ -0,0 +1,33 @@
# restic_repository: "s3:s3.us-east-1.amazonaws.com/bucket_name"
# restic_repository_password:
restic_environment_vars:
histalek commented 2025-04-28 19:15:17 +02:00
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Could we link to the relevant restic docs here?

https://restic.readthedocs.io/en/stable/040_backup.html#environment-variables

Could we link to the relevant restic docs here? https://restic.readthedocs.io/en/stable/040_backup.html#environment-variables
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roles/restic/tasks/main.yml Outdated
@ -0,0 +66,4 @@
- name: Reload systemd.
ansible.builtin.systemd:
daemon_reload: true
histalek commented 2025-04-28 19:10:08 +02:00
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why not add this to the two tasks below?

why not add this to the two tasks below?
saibotk commented 2025-04-28 19:43:42 +02:00
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Oh a bit micro optimization, didn't want to reload the daemon twice.
If you prefer, i can also put it back to both tasks

Oh a bit micro optimization, didn't want to reload the daemon twice. If you prefer, i can also put it back to both tasks
histalek commented 2025-04-28 20:38:33 +02:00
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ah no that's fine, i was just wondering if there was a reason for it

ah no that's fine, i was just wondering if there was a reason for it
histalek marked this conversation as resolved
histalek approved these changes 2025-04-28 20:38:53 +02:00
saibotk deleted branch restic 2025-05-12 00:44:34 +02:00
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Reference: SipsOfCode/infrastructure#133
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