Support json type for the ironic_node config_drive parameter

Since patch[0], ironic config_drive parameter support json type.

[0] https://review.opendev.org/639050

Change-Id: Ieecb9e6125a182a3da41002aea26233a98aecc8c

plugins/modules/os_ironic_node.py

@@ -97,7 +97,7 @@ extends_documentation_fragment:
 
 EXAMPLES = '''
 # Activate a node by booting an image with a configdrive attached
-os_ironic_node:
+- os_ironic_node:
     cloud: "openstack"
     uuid: "d44666e1-35b3-4f6b-acb0-88ab7052da69"
     state: present
@@ -110,6 +110,22 @@ os_ironic_node:
       image_checksum: "356a6b55ecc511a20c33c946c4e678af"
       image_disk_format: "qcow"
     delegate_to: localhost
+
+# Activate a node by booting an image with a configdrive json object
+- os_ironic_node:
+    uuid: "d44666e1-35b3-4f6b-acb0-88ab7052da69"
+    auth_type: None
+    ironic_url: "http://192.168.1.1:6385/"
+    config_drive:
+      meta_data:
+        hostname: node1
+        public_keys:
+          default: ssh-rsa AAA...BBB==
+    instance_info:
+      image_source: "http://192.168.1.1/deploy_image.img"
+      image_checksum: "356a6b55ecc511a20c33c946c4e678af"
+      image_disk_format: "qcow"
+    delegate_to: localhost
 '''
 
 from ansible.module_utils.basic import AnsibleModule
@@ -205,7 +221,7 @@ def main():
         uuid=dict(required=False),
         name=dict(required=False),
         instance_info=dict(type='dict', required=False),
-        config_drive=dict(required=False),
+        config_drive=dict(type='raw', required=False),
         ironic_url=dict(required=False),
         state=dict(required=False, default='present'),
         maintenance=dict(required=False),
@@ -229,6 +245,13 @@ def main():
             endpoint=module.params['ironic_url']
         )
 
+    if (module.params['config_drive'] and
+            not isinstance(module.params['config_drive'], (str, dict))):
+        config_drive_type = type(module.params['config_drive'])
+        msg = ('argument config_drive is of type %s and we expected'
+               ' str or dict') % config_drive_type
+        module.fail_json(msg=msg)
+
     node_id = _choose_id_value(module)
 
     if not node_id: