author	title	summary	tags
Stephan Lichtenauer	BackupPC (Nomad)	This is a BackupPC server jail that can be deployed via nomad.	backuppc backup nomad

Overview

This is a BackupPC jail that can be started with pot but it can also be deployed via nomad.

The storage directory is in /var/db/BackupPC. It is suggested that this directory is mounted from outside the jail when it is run as a nomad task so that it is persistent (see example below).

The admin interface can be accessed via web browser through port 80.

For more details about nomadimages, see about potluck.

The jail exposes these parameters that can either be set via the environment or by setting the cookparameters (the latter either via nomad, see example below, or by editing the downloaded jails pot.conf file):

Environment	cook parameter	Content
PASSWORD	-p	Password for user admin in the web interface

Note: The jail does not yet send any BackupPC emails. Flavour patches for this or for making the configuration more persistent (see job description below) are welcome :) ...

Nomad Job Description Example

It is suggested to mount the jail directories /var/db/BackupPC and /usr/local/etc/backuppc/pc from outside as these contain the backup database and the host specific settings which both probably should be persistent.

Also, it is suggested to copy in the BackupPC hosts file (as this will otherwise be recreated on each job scheduling, so also edit this file by hand outside of the jail and not via the admin GUI as the changes otherwise will be lost when the jail is rescheduled by nomad). The main BackupPC configuration will be recreated as well, so store configuration in your per host settings that are stored in the mounted in directory /usr/local/etc/backuppc/pc.

Last not least, if you use ssh to access clients, you probably also want to copy your private/public key pair to /home/backuppc/.ssh so the BackupPC server can access your clients.

job "backuppc" {
  datacenters = ["mydc"]
  type        = "service"

  group "group1" {
    count = 1

    task "www1" {
      driver = "pot"

      service {
        tags = ["backuppc", "www"]
        name = "backuppc"
        port = "http"

         check {
            type     = "tcp"
            name     = "tcp"
            interval = "60s"
            timeout  = "30s"
          }
          check_restart {
            limit = 5
            grace = "120s"
            ignore_warnings = false
          }
      }

      config {
        image = "https://potluck.honeyguide.net/backuppc-nomad"
        pot = "backuppc-nomad-amd64-12_1"
        tag = "1.0"
        command = "/usr/local/bin/cook"
        args = ["-p","myadminpassword"]
        mount = [
          "/mnt/backupdb:/var/db/BackupPC",
          "/mnt/etc_pc:/usr/local/etc/backuppc/pc"
        ]
        copy = [
          "/mnt/hosts:/usr/local/etc/backuppc/hosts",
          "/mnt/id_rsa:/home/backuppc/.ssh/id_rsa",
          "/mnt/id_rsa.pub:/home/backuppc/.ssh/id_rsa.pub"
        ]
        port_map = {
          http = "80"
        }
      }

      resources {
        cpu = 500
        memory = 512

        network {
          mbits = 50
          port "http" {}
        }
      }
    }
  }
}