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Backups Aren't Simple

359 points · 225 comments · afilipovski

  1. ebrahimh · · focus · HN ↗
    I’m setting up 3-2-1-ish backups for my infra of 3 hosts, and definitely leaning towards Restic + Backrest.

    All my hosts run the same CoreOS setup (<a href="https:&#x2F;&#x2F;github.com&#x2F;ebrahim37&#x2F;infra-template" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;ebrahim37&#x2F;infra-template), where container volumes are placed in one central volumes&#x2F; folder and that is the only thing I have to backup.

    I plan to implement it like this:

      vps1:
      - restic container with custom sh entrypoint that will backup volumes&#x2F; to homelab every 24 hours
      homelab:
      - backrest container, to back up volumes&#x2F;, do prune&#x2F;check, replicate repo to offsite
      - rest-server container, will store backups from vps1, homelab, offsite
      offsite:
      - restic container, backs up volumes&#x2F; to homelab every 24 hours
      - rest-server container, store copy of backups from homelab
    
    Only caveat is backing up databases, will either have to do: stop container, backup volume&#x2F;database-data, start container; or use pg dump etc.

    The deduplication is nice, you can have a snapshot for each week of the past year without crazy storage cost

    1. zenoprax · · focus · HN ↗
      I&#x27;ve been trying to find a solution for this too! I was considering using Rclone but too many things are using SQLite for me to trust rsync. I was also going to go with CoreOS but I&#x27;m leaning towards Fedora Cloud now in case I need to manage things a bit more (and &quot;auto updating&quot; is not something I want as that suggests auto rebooting).

      Your secrets.yaml makes me nervous though - too easy to miss a key and leave something exposed. Why not just add the whole file to the vault?

      1. rsync · · focus · HN ↗
        Are you aware of sqlite3-rsync ?

        It is a tool that was created by the author of sqlite. It does just what you would expected to do.

        1. rsync · · focus · HN ↗
          It is here:

          <a href="https:&#x2F;&#x2F;sqlite.org&#x2F;rsync.html" rel="nofollow">https:&#x2F;&#x2F;sqlite.org&#x2F;rsync.html

          1. zenoprax · · focus · HN ↗
            Wow, I had no idea. This is probably going to do the trick nicely. I really appreciate the suggestion and link!
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