one_host environment variables, Fixes #44163 (#44568)

* including test case using environment variables as per issue #44163

* including missing environment variable in shared documentation fragement, related to issue #44163

* fixes parameters via environment variables, issue #44163

lib/ansible/module_utils/opennebula.py

@@ -28,9 +28,9 @@ class OpenNebulaModule:
     """
 
     common_args = dict(
-        api_url=dict(type='str', aliases=['api_endpoint']),
-        api_username=dict(type='str'),
-        api_password=dict(type='str', no_log=True, aliases=['api_token']),
+        api_url=dict(type='str', aliases=['api_endpoint'], default=environ.get("ONE_URL")),
+        api_username=dict(type='str', default=environ.get("ONE_USERNAME")),
+        api_password=dict(type='str', no_log=True, aliases=['api_token'], default=environ.get("ONE_PASSWORD")),
         validate_certs=dict(default=True, type='bool'),
         wait_timeout=dict(type='int', default=300),
     )
@@ -68,18 +68,18 @@ class OpenNebulaModule:
         if not HAS_PYONE:
             self.fail("pyone is required for this module")
 
-        if 'api_url' in self.module.params:
-            url = self.module.params.get("api_url", environ.get("ONE_URL", False))
+        if self.module.params.get("api_url"):
+            url = self.module.params.get("api_url")
         else:
             self.fail("Either api_url or the environment variable ONE_URL must be provided")
 
-        if 'api_username' in self.module.params:
-            username = self.module.params.get("api_username", environ.get("ONE_USERNAME", False))
+        if self.module.params.get("api_username"):
+            username = self.module.params.get("api_username")
         else:
             self.fail("Either api_username or the environment vairable ONE_USERNAME must be provided")
 
-        if 'api_password' in self.module.params:
-            password = self.module.params.get("api_password", environ.get("ONE_PASSWORD", False))
+        if self.module.params.get("api_password"):
+            password = self.module.params.get("api_password")
         else:
             self.fail("Either api_password or the environment vairable ONE_PASSWORD must be provided")
 

lib/ansible/utils/module_docs_fragments/opennebula.py

@@ -21,6 +21,7 @@ options:
     api_password:
         description:
             - The password or token for XMLRPC authentication.
+              If not specified then the value of the ONE_PASSWORD environment variable, if any, is used.
         aliases:
             - api_token
     validate_certs:

test/integration/targets/one_host/tasks/main.yml

@@ -72,11 +72,11 @@
   one_host:
     name: badhost
     state: absent
-    api_url: "{{ opennebula_url }}"
-    api_username: "{{ opennebula_username }}"
-    api_password: "{{ opennebula_password }}"
     validate_certs: false
   environment:
+    ONE_URL: "{{ opennebula_url }}"
+    ONE_USERNAME: "{{ opennebula_username }}"
+    ONE_PASSWORD: "{{ opennebula_password }}"
     PYONE_TEST_FIXTURE: "{{ opennebula_test_fixture }}"
     PYONE_TEST_FIXTURE_FILE: /tmp/opennebula-fixtures.json.gz
     PYONE_TEST_FIXTURE_REPLAY: "{{ opennebula_test_fixture_replay }}"