add missing additional nodegroup file

Author: sjpb

environments/skeleton/{{cookiecutter.environment}}/tofu/additional_nodegroups.tf

@@ -0,0 +1,67 @@
+module "additional" {
+  source = "./node_group"
+
+  for_each = var.additional_nodegroups
+
+  # must be set for group:
+  nodes = each.value.nodes
+  flavor = each.value.flavor
+
+  # always taken from top-level value:
+  cluster_name = var.cluster_name
+  cluster_domain_suffix = var.cluster_domain_suffix
+  key_pair = var.key_pair
+  environment_root = var.environment_root
+  
+  # can be set for group, defaults to top-level value:
+  image_id = lookup(each.value, "image_id", var.cluster_image_id)
+  vnic_types = lookup(each.value, "vnic_types", var.vnic_types)
+  volume_backed_instances = lookup(each.value, "volume_backed_instances", var.volume_backed_instances)
+  root_volume_size = lookup(each.value, "root_volume_size", var.root_volume_size)
+  root_volume_type = lookup(each.value, "root_volume_type", var.root_volume_type)
+  gateway_ip = lookup(each.value, "gateway_ip", var.gateway_ip)
+  nodename_template = lookup(each.value, "nodename_template", var.cluster_nodename_template)
+  
+  # optionally set for group:
+  networks = concat(var.cluster_networks, lookup(each.value, "extra_networks", []))
+  # here null means "use module var default"
+  extra_volumes = lookup(each.value, "extra_volumes", null)
+  fip_addresses = lookup(each.value, "fip_addresses", null)
+  fip_network = lookup(each.value, "fip_network", null)
+  match_ironic_node = lookup(each.value, "match_ironic_node", null)
+  availability_zone = lookup(each.value, "availability_zone", null)
+  ip_addresses = lookup(each.value, "ip_addresses", null)
+
+  # can't be set for additional nodes
+  compute_init_enable = []
+  ignore_image_changes = false
+
+  # computed
+  # not using openstack_compute_instance_v2.control.access_ip_v4 to avoid
+  # updates to node metadata on deletion/recreation of the control node:
+  control_address = openstack_networking_port_v2.control[var.cluster_networks[0].network].all_fixed_ips[0]
+  security_group_ids = [for o in data.openstack_networking_secgroup_v2.nonlogin: o.id]
+  baremetal_nodes = data.external.baremetal_nodes.result
+
+  # input dict validation:
+  group_name = each.key
+  group_keys = keys(each.value)
+  allowed_keys = [
+    "nodes",
+    "flavor",
+    "image_id",
+    "extra_networks",
+    "vnic_types",
+    "volume_backed_instances",
+    "root_volume_size",
+    "root_volume_type",
+    "extra_volumes",
+    "fip_addresses",
+    "fip_network",
+    "match_ironic_node",
+    "availability_zone",
+    "ip_addresses",
+    "gateway_ip",
+    "nodename_template",
+  ]
+}