StatefulSet's PodSpec should allow specifying volumeDevices

[jirislav]

Description

Since the schema of StatefulSet uses PodSpec under the hood, we should allow all the features of PodSpec to be used within the StatefulSet. But the support of volumeDevices is missing.

Potential Terraform Configuration

resource "kubernetes_stateful_set_v1" "ss-test" {

  metadata {
    name = "ss-test"
  }

  spec {
    replicas = 1

    selector {
      match_labels = {
        app = "ss-test"
      }
    }

    template {
      metadata {
        labels = {
          app = "ss-test"
        }
      }

      spec {
        container {
          name  = "ss-test"

          volume_mount {
            name       = "ss-test"
            mount_path = "/work-dir"
          }

          volume_device { # This is not supported, but should be
            name        = "ss-device-test"
            device_path = "/dev/xvda"
          }
        }
      }
    }

    volume_claim_template {
      metadata {
        name = "ss-test"
      }

      spec {
        access_modes = ["ReadWriteOnce"]
        resources {
          requests = {
            storage = "1Gi"
          }
        }
      }
    }

    volume_claim_template {
      metadata {
        name = "ss-device-test"
      }

      spec {
        access_modes = ["ReadWriteOnce"]
        volume_mode  = "Block"
        resources {
          requests = {
            storage = "1Gi"
          }
        }
      }
    }
  }
}

References

• https://kubernetes.io/docs/reference/kubernetes-api/workload-resources/pod-v1/#volumes-1

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