Postgresql docs fragments 2 (#55363)

* Postgres to use docsfragments
* Postgres to use docsfragments: redefined options in postgresql_user

lib/ansible/modules/database/postgresql/postgresql_ext.py

@@ -38,50 +38,6 @@ options:
     - Name of the schema to add the extension to.
     version_added: '2.8'
     type: str
-  login_user:
-    description:
-    - The username used to authenticate with.
-    type: str
-    default: postgres
-  login_password:
-    description:
-    - The password used to authenticate with.
-    type: str
-  login_host:
-    description:
-    - Host running the database.
-    type: str
-  login_unix_socket:
-    description:
-    - Path to a Unix domain socket for local connections.
-    type: str
-    version_added: '2.8'
-  ssl_mode:
-    description:
-    - Determines whether or with what priority a secure SSL TCP/IP connection
-      will be negotiated with the server.
-    - See U(https://www.postgresql.org/docs/current/static/libpq-ssl.html) for
-      more information on the modes.
-    - Default of C(prefer) matches libpq default.
-    default: prefer
-    choices: [allow, disable, prefer, require, verify-ca, verify-full]
-    type: str
-    version_added: '2.8'
-  ca_cert:
-    description:
-    - Specifies the name of a file containing SSL certificate authority (CA)
-      certificate(s). If the file exists, the server's certificate will be
-      verified to be signed by one of these authorities.
-    type: str
-    version_added: '2.8'
-    aliases: [ ssl_rootcert ]
-  port:
-    description:
-    - Database port to connect to.
-    default: 5432
-    type: int
-    aliases:
-    - login_port
   session_role:
     description:
     - Switch to session_role after connecting.
@@ -102,6 +58,27 @@ options:
     type: bool
     default: no
     version_added: '2.8'
+  login_unix_socket:
+    description:
+      - Path to a Unix domain socket for local connections.
+    type: str
+    version_added: '2.8'
+  ssl_mode:
+    description:
+      - Determines whether or with what priority a secure SSL TCP/IP connection will be negotiated with the server.
+      - See https://www.postgresql.org/docs/current/static/libpq-ssl.html for more information on the modes.
+      - Default of C(prefer) matches libpq default.
+    type: str
+    default: prefer
+    choices: [ allow, disable, prefer, require, verify-ca, verify-full ]
+    version_added: '2.8'
+  ca_cert:
+    description:
+      - Specifies the name of a file containing SSL certificate authority (CA) certificate(s).
+      - If the file exists, the server's certificate will be verified to be signed by one of these authorities.
+    type: str
+    aliases: [ ssl_rootcert ]
+    version_added: '2.8'
 notes:
 - The default authentication assumes that you are either logging in as
   or sudo'ing to the C(postgres) account on the host.
@@ -115,6 +92,7 @@ requirements: [ psycopg2 ]
 author:
 - Daniel Schep (@dschep)
 - Thomas O'Donnell (@andytom)
+extends_documentation_fragment: postgres
 '''
 
 EXAMPLES = r'''