kubernetes-persistent-volume-claim.tf

# the following config is based on digitalocean doc
# https://www.digitalocean.com/docs/kubernetes/how-to/add-volumes/
#
# other cloud provider may have different convention, i.e., needing to create a `kubernetes_persistent_volume` before creating a claim
#
#
# tf doc: https://www.terraform.io/docs/providers/kubernetes/r/persistent_volume_claim.html
resource "kubernetes_persistent_volume_claim" "app_digitalocean_pvc" {

  metadata {
    # for digitalocean - name must be lowercase alphanumeric values and dashes (hyphen) only
    name      = "my-postgres-persistent-volume-claim"
    namespace = "my-postgres-namespace"
  }
  spec {
    access_modes = ["ReadWriteOnce"]

    resources {
      requests = {
        storage = "1Gi" # digitalocean: changing the storage value in the resource definition after the volume has been created will have no effect
      }
    }

    storage_class_name = "do-block-storage"
  }
}