ironic hooks: Add a router if IPv6

For IPv6 network booting to work we need a router that does
router advertisements with the options to instrcut clients to
attempt DHCPv6 Config requests.

This change adds a tasks to both adoption_ironic_post_oc and
ironic_network hooks which create this router.

Jira: OSPRH-20084
Jira: OSPRH-20019

Author: hjensas

hooks/playbooks/adoption_ironic_post_oc.yml

@@ -21,6 +21,7 @@
     _subnet_gateway: '172.20.1.1'
     _subnet_alloc_pool_start: '172.20.1.150'
     _subnet_alloc_pool_end: '172.20.1.199'
+    _subnet_ip_version: 4
     _provider_physical_network: ironic
     _provider_network_type: flat
   tasks:
@@ -156,6 +157,14 @@
                   --gateway {{ _subnet_gateway }} \
                   --allocation-pool start={{ _subnet_alloc_pool_start }},end={{ _subnet_alloc_pool_end }}
 
+        - name: Create router and attach subnet for IPv6 provisioning network
+          ansible.builtin.shell:
+            cmd: >-
+              openstack router show provisioning &>/dev/null || \
+                (openstack router create provisioning && \
+                 openstack router add subnet provisioning provisioning-subnet)
+          when: _subnet_ip_version | int == 6
+
     - name: Slurp ironic_nodes.yaml from controller-0
       delegate_to: controller-0
       register: _ironic_nodes_slurp

hooks/playbooks/ironic_network.yml

@@ -47,3 +47,13 @@
             --gateway {{ _subnet_gateway }} \
             --dns-nameserver {{ _subnet_nameserver }} \
             --allocation-pool start={{ _subnet_alloc_pool_start }},end={{ _subnet_alloc_pool_end }}
+
+    - name: Create router for IPv6 provisioning network
+      ansible.builtin.shell: |
+        set -xe -o pipefail
+        oc project {{ _namespace }}
+        oc rsh openstackclient \
+          openstack router create provisioning
+        oc rsh openstackclient \
+          openstack router add subnet provisioning provisioning-subnet
+      when: _subnet_ip_version | int == 6