nomad-csi/csi/node.nomad

job "csi-nfs-node" {
  datacenters = ["dc1"]
  type        = "service"
  namespace   = "default"

  # Only int for now — expand to all workers once verified
  constraint {
    attribute = "${node.unique.name}"
    value     = "int"
  }

  group "node" {
    count = 1

    # int is both the NFS server and the only node running this plugin, so a
    # reboot there takes it down. Without these the allocation is marked Lost
    # and never comes back on its own — which is how it stayed dead from
    # 2026-06-08 until someone noticed.
    restart {
      attempts = 5
      interval = "10m"
      delay    = "30s"
      mode     = "delay"
    }

    reschedule {
      unlimited      = true
      delay          = "30s"
      delay_function = "exponential"
      max_delay      = "5m"
    }

    task "plugin" {
      driver = "docker"

      config {
        # Pinned by digest rather than :latest. The tag moves upstream, so a
        # fresh pull on a new node gets a different build than the one cached
        # on int — this digest is what has actually been running there.
        image        = "democraticcsi/democratic-csi@sha256:944d0e65077efbd9c1fdf23997eec8fac4b4bfb7c3de400f63e33a0a849c5ced"
        command      = "/bin/democratic-csi"
        network_mode = "host"
        args = [
          "--csi-version=1.5.0",
          "--csi-name=org.democratic-csi.nfs",
          "--driver-config-file=${NOMAD_TASK_DIR}/driver-config-file.yaml",
          "--log-level=info",
          "--csi-mode=node",
          "--server-socket=${CSI_ENDPOINT}",
        ]

        privileged = true
      }

      csi_plugin {
        id        = "org.democratic-csi.nfs"
        type      = "node"
        mount_dir = "/csi"
      }

      template {
        data        = <<TMPL
driver: nfs-client
instance_id: int-nfs-1
nfs:
  shareHost: 192.168.15.25
  shareBasePath: /opt/csi-volumes
  controllerBasePath: /opt/csi-volumes
  shareAlldirs: false
  shareAllowedNetworks:
    - 192.168.15.0/24
  shareAllowedHosts: []
  shareMaprootUser: root
  shareMaprootGroup: root
  mountOptions:
    - nolock
    - nfsvers=4
server:
  port: 50051
TMPL
        destination = "${NOMAD_TASK_DIR}/driver-config-file.yaml"
      }

      # democratic-csi is a Node.js process; 128 MB is tight enough that mount
      # activity can push it over. memory_max lets it burst without reserving
      # the headroom permanently.
      resources {
        cpu        = 100
        memory     = 256
        memory_max = 512
      }
    }
  }
}