Support forced SSL-verified connection with given CA certificate

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

@@ -89,10 +89,25 @@ options:
     required: false
     default: present
     choices: [ "present", "absent" ]
+  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.
+    required: false
+    default: disable
+    choices: [disable, allow, prefer, require, verify-ca, verify-full]
+    version_added: '2.3'
+  ssl_rootcert:
+    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.
+    required: false
+    default: null
+    version_added: '2.3'
 notes:
    - The default authentication assumes that you are either logging in as or sudo'ing to the C(postgres) account on the host.
    - This module uses I(psycopg2), a Python PostgreSQL database adapter. You must ensure that psycopg2 is installed on
      the host before using this module. If the remote host is the PostgreSQL server (which is the default case), then PostgreSQL must also be installed on the remote host. For Ubuntu-based systems, install the C(postgresql), C(libpq-dev), and C(python-psycopg2) packages on the remote host before using this module.
+   - The ssl_rootcert parameter requires at least Postgres version 8.4 and I(psycopg2) version 2.4.3.
 requirements: [ psycopg2 ]
 author: "Ansible Core Team"
 '''
@@ -242,6 +257,8 @@ def main():
             lc_collate=dict(default=""),
             lc_ctype=dict(default=""),
             state=dict(default="present", choices=["absent", "present"]),
+            ssl_mode=dict(default="disable", choices=['disable', 'allow', 'prefer', 'require', 'verify-ca', 'verify-full']),
+            ssl_rootcert=dict(default=None),
         ),
         supports_check_mode = True
     )
@@ -257,6 +274,7 @@ def main():
     lc_collate = module.params["lc_collate"]
     lc_ctype = module.params["lc_ctype"]
     state = module.params["state"]
+    sslrootcert = module.params["ssl_rootcert"]
     changed = False
 
     # To use defaults values, keyword arguments must be absent, so
@@ -266,16 +284,21 @@ def main():
         "login_host":"host",
         "login_user":"user",
         "login_password":"password",
-        "port":"port"
+        "port":"port",
+        "ssl_mode":"sslmode",
+        "ssl_rootcert":"sslrootcert"
     }
     kw = dict( (params_map[k], v) for (k, v) in iteritems(module.params)
-              if k in params_map and v != '' )
+              if k in params_map and v != '' and v is not None)
 
     # If a login_unix_socket is specified, incorporate it here.
     is_localhost = "host" not in kw or kw["host"] == "" or kw["host"] == "localhost"
     if is_localhost and module.params["login_unix_socket"] != "":
         kw["host"] = module.params["login_unix_socket"]
 
+    if psycopg2.__version__ < '2.4.3' and sslrootcert is not None:
+        module.fail_json(msg='psycopg2 must be at least 2.4.3 in order to user the ssl_rootcert parameter')
+
     try:
         db_connection = psycopg2.connect(database="postgres", **kw)
         # Enable autocommit so we can create databases
@@ -287,6 +310,13 @@ def main():
                                               .ISOLATION_LEVEL_AUTOCOMMIT)
         cursor = db_connection.cursor(
                 cursor_factory=psycopg2.extras.DictCursor)
+
+    except TypeError:
+        e = get_exception()
+        if 'sslrootcert' in e.args[0]:
+            module.fail_json(msg='Postgresql server must be at least version 8.4 to support sslrootcert')
+        module.fail_json(msg="unable to connect to database: %s" % e)
+
     except Exception:
         e = get_exception()
         module.fail_json(msg="unable to connect to database: %s" % e)

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

@@ -120,6 +120,20 @@ options:
       - 'Alias: I(login_password))'
     default: null
     required: no
+  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.
+    required: false
+    default: disable
+    choices: [disable, allow, prefer, require, verify-ca, verify-full]
+    version_added: '2.3'
+  ssl_rootcert:
+    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.
+    required: false
+    default: null
+    version_added: '2.3'
 notes:
   - Default authentication assumes that postgresql_privs is run by the
     C(postgres) user on the remote host. (Ansible's C(user) or C(sudo-user)).
@@ -139,6 +153,7 @@ notes:
     specified via I(login). If R has been granted the same privileges by
     another user also, R can still access database objects via these privileges.
   - When revoking privileges, C(RESTRICT) is assumed (see PostgreSQL docs).
+  - The ssl_rootcert parameter requires at least Postgres version 8.4 and I(psycopg2) version 2.4.3.
 requirements: [psycopg2]
 author: "Bernhard Weitzhofer (@b6d)"
 """
@@ -274,17 +289,31 @@ class Connection(object):
             "password":"password",
             "port":"port",
             "database": "database",
+            "ssl_mode":"sslmode",
+            "ssl_rootcert":"sslrootcert"
         }
+
         kw = dict( (params_map[k], getattr(params, k)) for k in params_map
-                   if getattr(params, k) != '' )
+                   if getattr(params, k) != '' and getattr(params, k) is not None )
 
         # If a unix_socket is specified, incorporate it here.
         is_localhost = "host" not in kw or kw["host"] == "" or kw["host"] == "localhost"
         if is_localhost and params.unix_socket != "":
             kw["host"] = params.unix_socket
 
-        self.connection = psycopg2.connect(**kw)
-        self.cursor = self.connection.cursor()
+        sslrootcert = params.ssl_rootcert
+        if psycopg2.__version__ < '2.4.3' and sslrootcert is not None:
+            module.fail_json(msg='psycopg2 must be at least 2.4.3 in order to user the ssl_rootcert parameter')
+
+        try:
+            self.connection = psycopg2.connect(**kw)
+            self.cursor = self.connection.cursor()
+
+        except TypeError:
+            e = get_exception()
+            if 'sslrootcert' in e.args[0]:
+                module.fail_json(msg='Postgresql server must be at least version 8.4 to support sslrootcert')
+            module.fail_json(msg="unable to connect to database: %s" % e)
 
 
     def commit(self):
@@ -541,7 +570,9 @@ def main():
             port=dict(type='int', default=5432),
             unix_socket=dict(default='', aliases=['login_unix_socket']),
             login=dict(default='postgres', aliases=['login_user']),
-            password=dict(default='', aliases=['login_password'], no_log=True)
+            password=dict(default='', aliases=['login_password'], no_log=True),
+            ssl_mode=dict(default="disable", choices=['disable', 'allow', 'prefer', 'require', 'verify-ca', 'verify-full']),
+            ssl_rootcert=dict(default=None)
         ),
         supports_check_mode = True
     )

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

@@ -124,6 +124,20 @@ options:
     default: 'no'
     choices: [ "yes", "no" ]
     version_added: '2.0'
+  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.
+    required: false
+    default: disable
+    choices: [disable, allow, prefer, require, verify-ca, verify-full]
+    version_added: '2.3'
+  ssl_rootcert:
+    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.
+    required: false
+    default: null
+    version_added: '2.3'
 notes:
    - The default authentication assumes that you are either logging in as or
      sudo'ing to the postgres account on the host.
@@ -140,6 +154,7 @@ notes:
    - If you specify PUBLIC as the user, then the privilege changes will apply
      to all users. You may not specify password or role_attr_flags when the
      PUBLIC user is specified.
+   - The ssl_rootcert parameter requires at least Postgres version 8.4 and I(psycopg2) version 2.4.3.
 requirements: [ psycopg2 ]
 author: "Ansible Core Team"
 '''
@@ -580,7 +595,9 @@ def main():
             role_attr_flags=dict(default=''),
             encrypted=dict(type='bool', default='no'),
             no_password_changes=dict(type='bool', default='no'),
-            expires=dict(default=None)
+            expires=dict(default=None),
+            ssl_mode=dict(default='disable', choices=['disable', 'allow', 'prefer', 'require', 'verify-ca', 'verify-full']),
+            ssl_rootcert=dict(default=None)
         ),
         supports_check_mode = True
     )
@@ -605,6 +622,7 @@ def main():
     else:
         encrypted = "UNENCRYPTED"
     expires = module.params["expires"]
+    sslrootcert = module.params["ssl_rootcert"]
 
     if not postgresqldb_found:
         module.fail_json(msg="the python psycopg2 module is required")
@@ -617,19 +635,31 @@ def main():
         "login_user":"user",
         "login_password":"password",
         "port":"port",
-        "db":"database"
+        "db":"database",
+        "ssl_mode":"sslmode",
+        "ssl_rootcert":"sslrootcert"
     }
     kw = dict( (params_map[k], v) for (k, v) in iteritems(module.params)
-              if k in params_map and v != "" )
+              if k in params_map and v != "" and v is not None)
 
     # If a login_unix_socket is specified, incorporate it here.
     is_localhost = "host" not in kw or kw["host"] == "" or kw["host"] == "localhost"
     if is_localhost and module.params["login_unix_socket"] != "":
         kw["host"] = module.params["login_unix_socket"]
 
+    if psycopg2.__version__ < '2.4.3' and sslrootcert is not None:
+        module.fail_json(msg='psycopg2 must be at least 2.4.3 in order to user the ssl_rootcert parameter')
+
     try:
         db_connection = psycopg2.connect(**kw)
         cursor = db_connection.cursor(cursor_factory=psycopg2.extras.DictCursor)
+
+    except TypeError:
+        e = get_exception()
+        if 'sslrootcert' in e.args[0]:
+            module.fail_json(msg='Postgresql server must be at least version 8.4 to support sslrootcert')
+        module.fail_json(msg="unable to connect to database: %s" % e)
+
     except Exception:
         e = get_exception()
         module.fail_json(msg="unable to connect to database: %s" % e)