resource "oci_core_instance" "memcached-instance" {
  count               = var.memcached_amount_instances
  availability_domain = data.oci_identity_availability_domain.ad.name
  fault_domain        = data.oci_identity_fault_domains.fds.fault_domains[count.index % length(data.oci_identity_fault_domains.fds.fault_domains)].name
  compartment_id      = var.ocid_compartment_app
  display_name        = "${var.memcached_prefix_hostname}-${var.environment}-0${count.index + 1}"
  shape               = var.memcached_shape
  shape_config {
      ocpus         = var.memcached_amount_ocpus
      memory_in_gbs = var.memcached_amount_memory
  }

  create_vnic_details {
    subnet_id              = var.ocid_subnet_app
    assign_public_ip       = false
    nsg_ids                = [ oci_core_network_security_group.memcached-servers-nsg.id ]
  }

  source_details {
    source_type = "image"
    source_id   = data.oci_core_images.ol9_latest.images[0].id
  }

  metadata = {
    ssh_authorized_keys = tls_private_key.master_ssh_key.public_key_openssh
    user_data           = "${base64encode(file("utils/cloud-init-memcached.yaml"))}"
  }

  lifecycle {
    ignore_changes = [
      source_details [ "source_id" ],
      #metadata [ "user_data" ] 
    ]
  }
}