Fixes 36950. Added support for missing options capabilities and root_device in properties of os_ironic.py ansible module (#37113)

* Fix for 36950. Added support for missing options capabilities and root_device in properties of os_ironic.py ansible module

* Updated docstring to pass documentation validation

* Updated review comments from juliakreger

* version_added: "2.8"

lib/ansible/modules/cloud/openstack/os_ironic.py

@@ -93,6 +93,20 @@ options:
           description:
             - size of first storage device in this machine (typically /dev/sda), in GB
           default: 1
+        capabilities:
+          description:
+            - special capabilities for the node, such as boot_option, node_role etc
+              (see U(https://docs.openstack.org/ironic/latest/install/advanced.html)
+              for more information)
+          default: ""
+          version_added: "2.8"
+        root_device:
+          description:
+            - Root disk device hints for deployment.
+              (see U(https://docs.openstack.org/ironic/latest/install/include/root-device-hints.html)
+              for allowed hints)
+          default: ""
+          version_added: "2.8"
     skip_update_of_driver_password:
       description:
         - Allows the code that would assert changes to nodes to skip the
@@ -120,6 +134,9 @@ EXAMPLES = '''
       cpu_arch: "x86_64"
       ram: 8192
       disk_size: 64
+      capabilities: "boot_option:local"
+      root_device:
+        wwn: "0x4000cca77fc4dba1"
     nics:
       - mac: "aa:bb:cc:aa:bb:cc"
       - mac: "dd:ee:ff:dd:ee:ff"
@@ -149,6 +166,8 @@ def _parse_properties(module):
         cpus=p.get('cpus') if p.get('cpus') else 1,
         memory_mb=p.get('ram') if p.get('ram') else 1,
         local_gb=p.get('disk_size') if p.get('disk_size') else 1,
+        capabilities=p.get('capabilities') if p.get('capabilities') else '',
+        root_device=p.get('root_device') if p.get('root_device') else '',
     )
     return props