I recently installed proxmox on two 7050 micro pcs, and set up a third box with PBS.

Within proxmox is it best to run docker in a LXC or a VM ?

Should I run one docker image per instance, or all in the same instance ?

I would like to back this stuff up to PBS. Is this a factor in this decision?

I have plex, node-red, influxdb, mosquitto and grafana dockers on an old pc that I wish to rehost to proxmox.

  • MangoPenguin@lemmy.blahaj.zoneEnglish
    1·
    3 days ago

    I use a single LXC for all my docker stuff. You can use a VM too, either way works. The VM is easier to set up as docker in LXC requires a few extra steps.

    Definitely don’t do one docker image per instance, the overhead on that would be insane with managing configs and updates. I can’t imagine having over 100 LXC containers that I’d have to individually update and manage!

  • thirdBreakfast@lemmy.worldEnglish
    1·
    3 days ago

    I run one docker container per (Debian) LXC. I know it’s got layers like ogres, but I like being able to move them around with the snapshot backups - this is the advantage vs having a single VM with a heap of containers running on it.

  • tofuEnglish
    1·
    3 days ago

    Both works, including backups, but the official recommendation is to use a VM for better isolation.

    Note If you want to run application containers, for example, Docker images, it is recommended that you run them inside a Proxmox QEMU VM. This will give you all the advantages of application containerization, while also providing the benefits that VMs offer, such as strong isolation from the host and the ability to live-migrate, which otherwise isn’t possible with containers

    https://pve.proxmox.com/wiki/Linux_Container

    1 VM per Docker stack is pretty resource intensive so many people put many docker stacks in 1 VM which is fine. You can maybe have 1 VM for public facing services and 1 for internal or similar.