I’m thinking about getting started using Docker and an older Raspberry Pi. I’m already hosting a grafana service on it, so It can’t be fully dedicated to ha. So curious what everyone is using.

  • SayCyberOnceMore@feddit.ukEnglish
    0·
    9 days ago

    It’s now running as a VM in ProxMox on a pair of Lenovo M710q mini PCs

    So, have you got High Availability setup? If so, I’d like to know more about that part…

    • Llamatron@lemmy.worldEnglish
      0·
      9 days ago

      So my plan had been to set up a pair of ProxMox hosts, use Ceph to do the shared storage and use HA so VMs could magically move around if a host died. However, I discovered Ceph and HA need a minimum of 3 hosts. HA can be done if you set up a Pi or some other 3rd host that can act as the 3rd vote in the event of a failure but as I didn’t have Ceph I’ve not bothered trying.

      I’ve read Ceph can work on 2 but not well or reliably.

      I might setup a 3rd host some day but it seems a bit of a waste as I just don’t need that amount of resources for what I’m running.

      And I should have known really, I’ve a bit of a background in VMware, albeit at the enterprise level so I’ve never had to even think about 2 or 3 node clusters.

      • GreatAlbatross@feddit.ukMEnglish
        1·
        4 days ago

        I hit this stumbling block.
        And I don’t quite want to go the whole hog/headache of HA.
        My solution was to run warm-spare: Once a week the VM can be synced to the second box, but never powered on.
        And HA backups are pretty good anyway, it doesn’t take long to bring it back.