Wrong permissions on /var/jenkins_home in nomad

Using Jenkins
1

Hello.
I want to try using Jenkins in nomad.

My nomad.job config:

job "jenkins-nomad" {
  type = "service"
  namespace = "test"
  node_pool = "test"

  group "jenkins-nomad" {
    count = 1

    volume "ceph-jenkins" {
      type      = "csi"
      attachment_mode = "file-system"
      access_mode     = "single-node-writer"
      read_only = false
      source    = "ceph-jenkins"
    }

    network {
      port "http" {
        static = 8080
      }
      port "jnlp" {
        static = 50000
      }
    }

    task "jenkins-nomad" {
      driver = "docker"

      volume_mount {
        volume      = "ceph-jenkins"
        destination = "/var/jenkins_home"
        read_only   = false
      }

      config {
        image = "jenkins/jenkins:2.441-jdk17"
        ports = [
          "http",
          "jnlp"
        ]
      }

      resources {
        cpu    = 1000
        memory = 2048
      }

      service {
        name = "jenkins-nomad"
        port = "http"

        check {
          type     = "tcp"
          interval = "10s"
          timeout  = "2s"
        }
      }
      service {
        name = "jenkins-nomad-jnlp"
        port = "jnlp"

        check {
          type     = "tcp"
          interval = "10s"
          timeout  = "2s"
        }
      }
    }
  }
}

But get an error:

Can not write to /var/jenkins_home/copy_reference_file.log. Wrong volume permissions?
INSTALL WARNING: User:  missing rw permissions on JENKINS_HOME: /var/jenkins_home

With nomad volume everything is ok, another service can write to the volume.
Where can be the problem? And how do I resolve it?