homelab-nomad/backups/oneoff.nomad

variable "nextcloud_backup" {
  type = string
  description = "HCL config for Restic Scheduler jobs"
}

job "backup-oneoff" {
  datacenters = ["dc1"]
  type = "batch"

  parameterized {
    meta_required = ["job_name"]
    meta_optional = ["task", "snapshot"]

  }

  meta {
    task = "backup"
    snapshot = "latest"
  }

  group "nextcloud" {
    count = 1

    network {
      mode = "bridge"
    }

    volume "nextcloud-data" {
      type = "host"
      read_only = true
      source = "nextcloud-data"
    }

    volume "gitea-data" {
      type = "host"
      read_only = true
      source = "gitea-data"
    }

    volume "authentik-data" {
      type = "host"
      read_only = true
      source = "authentik-data"
    }

    service {
      connect {
        sidecar_service {
          proxy {
            upstreams {
              destination_name = "mysql-server"
              local_bind_port = 6060
            }

            config {
              protocol = "tcp"
            }
          }
        }

        sidecar_task {
          resources {
            cpu    = 50
            memory = 50
          }
        }
      }
    }

    task "backup" {
      driver = "docker"

      volume_mount {
        volume = "nextcloud-data"
        destination = "/data/nextcloud"
        read_only = false
      }

      volume_mount {
        volume = "gitea-data"
        destination = "/data/gitea"
        read_only = false
      }

      volume_mount {
        volume = "authentik-data"
        destination = "/data/authentik"
        read_only = false
      }

      config {
        image = "iamthefij/resticscheduler"
        ports = ["backup"]
        args = [
          "-once",
          "-${NOMAD_META_task}",
          "${NOMAD_META_job_name}",
          "/jobs/nextcloud.hcl",
        ]

        mount {
          type = "bind"
          target = "/jobs"
          source = "jobs"
        }
      }

      env = {
        "MYSQL_HOST" = "${NOMAD_UPSTREAM_IP_mysql_server}"
        "MYSQL_PORT" = "${NOMAD_UPSTREAM_PORT_mysql_server}"
        # TODO: Add user with access to all databases or variables for each user
        "MYSQL_DATABASE" = "nextcloud"
        "MYSQL_USER" = "nextcloud"
        "MYSQL_PASSWORD" = "nextcloud"

        # TODO: Something from vault
        "BACKUP_PASSPHRASE" = "secretpass"
      }

      template {
        data = var.nextcloud_backup
        destination = "jobs/nextcloud.hcl"
      }

      resources {
        cpu = 50
        memory = 256
      }
    }
  }
}