Added new modules for password rules

Details:

* Added a new module 'zhmc_password_rule' that supports creating/updating,
  deleting, and gathering facts of a password rule on the HMC. (issue #363)

* Added a new module 'zhmc_password_rule_list' that supports listing the names
  of password rules on the HMC. (issue #363)

* Improved the mocked HMCs defined in mocked_z14_classic.yaml and
  mocked_z14_dpm.yaml to define password rules with all properties.

* Changed the password rule 'Basic' that is used in the end2end tests
  to 'Standard'.

* Increased zhmcclient to 1.4.0 (currently still pulled drom master branch)
  in orde to pick up improvements in mock support for password rules.

Signed-off-by: Andreas Maier <[email protected]>

docs/source/modules.rst

@@ -32,6 +32,8 @@ Modules targeting the HMC (i.e. not a specific CPC):
    :glob:
 
    modules/zhmc_user
+   modules/zhmc_password_rule
+   modules/zhmc_password_rule_list
 
 Modules supported with CPCs in any operational mode:
 

docs/source/modules/zhmc_password_rule.rst

@@ -0,0 +1,247 @@
+
+:github_url: https://github.com/ansible-collections/ibm_zos_core/blob/dev/plugins/modules/zhmc_password_rule.py
+
+.. _zhmc_password_rule_module:
+
+
+zhmc_password_rule -- Create HMC password rules
+===============================================
+
+
+
+.. contents::
+   :local:
+   :depth: 1
+
+
+Synopsis
+--------
+- Gather facts about a password rule on an HMC of a Z system.
+- Create, delete, or update a password rule on an HMC.
+
+
+Requirements
+------------
+
+- Access to the WS API of the HMC of the targeted Z system (see :term:`HMC API`).
+- The targeted Z system can be in any operational mode (classic, DPM)
+
+
+
+
+Parameters
+----------
+
+
+hmc_host
+  The hostname or IP address of the HMC.
+
+  | **required**: True
+  | **type**: str
+
+
+hmc_auth
+  The authentication credentials for the HMC.
+
+  | **required**: True
+  | **type**: dict
+
+
+  userid
+    The userid (username) for authenticating with the HMC.
+
+    | **required**: True
+    | **type**: str
+
+
+  password
+    The password for authenticating with the HMC.
+
+    | **required**: True
+    | **type**: str
+
+
+  ca_certs
+    Path name of certificate file or certificate directory to be used for verifying the HMC certificate. If null (default), the path name in the 'REQUESTS_CA_BUNDLE' environment variable or the path name in the 'CURL_CA_BUNDLE' environment variable is used, or if neither of these variables is set, the certificates in the Mozilla CA Certificate List provided by the 'certifi' Python package are used for verifying the HMC certificate.
+
+    | **required**: False
+    | **type**: str
+
+
+  verify
+    If True (default), verify the HMC certificate as specified in the ``ca_certs`` parameter. If False, ignore what is specified in the ``ca_certs`` parameter and do not verify the HMC certificate.
+
+    | **required**: False
+    | **type**: bool
+    | **default**: True
+
+
+
+name
+  The name of the target password rule.
+
+  | **required**: True
+  | **type**: str
+
+
+state
+  The desired state for the HMC password rule. All states are fully idempotent within the limits of the properties that can be changed:
+
+  * ``absent``: Ensures that the password rule does not exist.
+
+  * ``present``: Ensures that the password rule exists and has the specified properties.
+
+  * ``facts``: Returns the password rule properties.
+
+  | **required**: True
+  | **type**: str
+  | **choices**: absent, present, facts
+
+
+properties
+  Dictionary with desired properties for the password rule. Used for ``state=present``; ignored for ``state=absent|facts``. Dictionary key is the property name with underscores instead of hyphens, and dictionary value is the property value in YAML syntax. Integer properties may also be provided as decimal strings.
+
+  The possible input properties in this dictionary are the properties defined as writeable in the data model for Password Rule resources (where the property names contain underscores instead of hyphens), with the following exceptions:
+
+  * ``name``: Cannot be specified because the name has already been specified in the ``name`` module parameter.
+
+  Properties omitted in this dictionary will remain unchanged when the password rule already exists, and will get the default value defined in the data model for password rules in the :term:`HMC API` when the password rule is being created.
+
+  | **required**: False
+  | **type**: dict
+
+
+log_file
+  File path of a log file to which the logic flow of this module as well as interactions with the HMC are logged. If null, logging will be propagated to the Python root logger.
+
+  | **required**: False
+  | **type**: str
+
+
+
+
+Examples
+--------
+
+.. code-block:: yaml+jinja
+
+
+   ---
+   # Note: The following examples assume that some variables named 'my_*' are set.
+
+   - name: Gather facts about a password rule
+     zhmc_password_rule:
+       hmc_host: "{{ my_hmc_host }}"
+       hmc_auth: "{{ my_hmc_auth }}"
+       name: "{{ my_password_rule_name }}"
+       state: facts
+     register: rule1
+
+   - name: Ensure the password rule does not exist
+     zhmc_password_rule:
+       hmc_host: "{{ my_hmc_host }}"
+       hmc_auth: "{{ my_hmc_auth }}"
+       name: "{{ my_password_rule_name }}"
+       state: absent
+
+   - name: Ensure the password rule exists and has certain properties
+     zhmc_password_rule:
+       hmc_host: "{{ my_hmc_host }}"
+       hmc_auth: "{{ my_hmc_auth }}"
+       name: "{{ my_password_rule_name }}"
+       state: present
+       properties:
+         description: "Example password rule 1"
+     register: rule1
+
+
+
+
+
+
+
+
+
+
+
+Return Values
+-------------
+
+
+changed
+  Indicates if any change has been made by the module. For ``state=facts``, always will be false.
+
+  | **returned**: always
+  | **type**: bool
+
+msg
+  An error message that describes the failure.
+
+  | **returned**: failure
+  | **type**: str
+
+password_rule
+  For ``state=absent``, an empty dictionary.
+
+  For ``state=present|facts``, a dictionary with the resource properties of the target password rule.
+
+  | **returned**: success
+  | **type**: dict
+  | **sample**:
+
+    .. code-block:: json
+
+        {
+            "case-sensitive": false,
+            "character-rules": [
+                {
+                    "alphabetic": "allowed",
+                    "custom-character-sets": [],
+                    "max-characters": 1,
+                    "min-characters": 1,
+                    "numeric": "not-allowed",
+                    "special": "allowed"
+                },
+                {
+                    "alphabetic": "required",
+                    "custom-character-sets": [],
+                    "max-characters": 28,
+                    "min-characters": 4,
+                    "numeric": "allowed",
+                    "special": "allowed"
+                },
+                {
+                    "alphabetic": "allowed",
+                    "custom-character-sets": [],
+                    "max-characters": 1,
+                    "min-characters": 1,
+                    "numeric": "not-allowed",
+                    "special": "allowed"
+                }
+            ],
+            "class": "password-rule",
+            "consecutive-characters": 2,
+            "description": "Standard password rule definition",
+            "element-id": "520c0138-4a7e-11e9-8bb3-bdfeb245fc36",
+            "element-uri": "/api/console/password-rules/520c0138-4a7e-11e9-8bb3-bdfeb245fc36",
+            "expiration": 186,
+            "history-count": 4,
+            "max-length": 30,
+            "min-length": 6,
+            "name": "Standard",
+            "parent": "/api/console",
+            "replication-overwrite-possible": false,
+            "similarity-count": 0,
+            "type": "system-defined"
+        }
+
+  name
+    Password rule name
+
+    | **type**: str
+
+  {property}
+    Additional properties of the password rule, as described in the data model of the 'Password Rule' object in the :term:`HMC API` book. The property names have hyphens (-) as described in that book.
+
+
+