New privilege management module

There is a new privilege management module placed in the plugins folder:

    plugins/modules/ipaprivilege.py

The privilege module allows to ensure presence or absence of privilege
and manage privilege permission memebers.

Here is the documentation for the module:

    README-privilege.md

New example playbooks have been added:

    playbooks/privilege/privilege-absent.yml
    playbooks/privilege/privilege-member-absent.yml
    playbooks/privilege/privilege-member-present.yml
    playbooks/privilege/privilege-present.yml

New tests for the module:

    tests/privilege/test_privilege.yml

README-privilege.md

+Privilege module
+================
+
+Description
+-----------
+
+The privilege module allows to ensure presence and absence of privileges and privilege members.
+
+Features
+--------
+
+* Privilege management
+
+
+Supported FreeIPA Versions
+--------------------------
+
+FreeIPA versions 4.4.0 and up are supported by the ipaprivilege module.
+
+
+Requirements
+------------
+
+**Controller**
+* Ansible version: 2.8+
+
+**Node**
+* Supported FreeIPA version (see above)
+
+
+Usage
+=====
+
+Example inventory file
+
+```ini
+[ipaserver]
+ipaserver.test.local
+```
+
+
+Example playbook to make sure privilege "Broad Privilege" is present:
+
+```yaml
+---
+- name: Playbook to manage IPA privilege.
+  hosts: ipaserver
+  become: yes
+
+  tasks:
+  - ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      description: Broad Privilege
+```
+
+Example playbook to make sure privilege "Broad Privilege" member permission has multiple values:
+
+```yaml
+---
+- name: Playbook to manage IPA privilege permission member.
+  hosts: ipaserver
+  become: yes
+
+  tasks:
+  - ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      - "System: Write DNS Configuration"
+      - "System: Update DNS Entries"
+      action: member
+```
+
+
+Example playbook to make sure privilege "Broad Privilege" member permission 'Write IPA Configuration' is absent:
+
+
+```yaml
+---
+- name: Playbook to manage IPA privilege permission member.
+  hosts: ipaserver
+  become: yes
+
+  tasks:
+  - ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      action: member
+      state: absent
+```
+
+Example playbook to rename privilege "Broad Privilege" to "DNS Special Privilege":
+
+```yaml
+---
+- name: Playbook to manage IPA privilege.
+  hosts: ipaserver
+  become: yes
+
+  tasks:
+  - ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      rename: DNS Special Privilege
+      state: renamed
+```
+
+Example playbook to make sure privilege "DNS Special Privilege" is absent:
+
+```yaml
+---
+- name: Playbook to manage IPA privilege.
+  hosts: ipaserver
+  become: yes
+  - name: Ensure privilege Broad Privilege is absent
+      ipaadmin_password: SomeADMINpassword
+      name: DNS Special Privilege
+      state: absent
+```
+
+
+Variables
+---------
+
+ipaprivilege
+------------
+
+Variable | Description | Required
+-------- | ----------- | --------
+`ipaadmin_principal` | The admin principal is a string and defaults to `admin`. | no
+`ipaadmin_password` | The admin password is a string and is required if there is no admin ticket available on the node. | no
+`name` \| `cn` | The list of privilege name strings. | yes
+`description` | Privilege description. | no
+`rename` \| `new_name` | Rename the privilege object. | no
+`permission` | Permissions to be added to the privilege. | no
+`action` | Work on privilege or member level. It can be one of `member` or `privilege` and defaults to `privilege`. | no
+`state` | The state to ensure. It can be one of `present`, `absent` or `renamed`, default: `present`. | no
+
+
+Authors
+=======
+
+Rafael Guterres Jeffman

playbooks/privilege/privilege-absent.yml

+---
+- name: Privilege absent example
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: Ensure privilege "Broad Privilege" is absent
+    ipaprivilege:
+      name: Broad Privilege
+      state: absent

playbooks/privilege/privilege-member-absent.yml

+---
+- name: Privilege absent example
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: Ensure privilege "Broad Privilege" permission is absent
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "System: Write IPA Configuration"
+      action: member
+      state: absent

playbooks/privilege/privilege-member-present.yml

+---
+- name: Privilege member present example
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: Ensure privilege "Broad Privilege" permissions are present
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "System: Write IPA Configuration"
+      - "System: Write DNS Configuration"
+      - "System: Update DNS Entries"
+      action: member

playbooks/privilege/privilege-present.yml

+---
+- name: Privilege present example
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: Ensure privilege Broad Privilege is present
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      description: Broad Privilege

plugins/modules/ipaprivilege.py

+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Authors:
+#   Rafael Guterres Jeffman <rjeffman@redhat.com>
+#
+# Copyright (C) 2020 Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""ansible-freeipa module to manage FreeIPA privileges."""
+
+
+ANSIBLE_METADATA = {
+    "metadata_version": "1.0",
+    "supported_by": "community",
+    "status": ["preview"],
+}
+
+DOCUMENTATION = """
+---
+module: ipaprivilege
+short description: Manage FreeIPA privilege
+description: Manage FreeIPA privilege and privilege members
+options:
+  ipaadmin_principal:
+    description: The admin principal.
+    default: admin
+  ipaadmin_password:
+    description: The admin password.
+    required: false
+  name:
+    description: The list of privilege name strings.
+    required: true
+    aliases: ["cn"]
+  description:
+    description: Privilege description
+    required: false
+  rename:
+    description: Rename the privilege object.
+    required: false
+    aliases: ["new_name"]
+  permission:
+    description: Permissions to be added to the privilege.
+    required: false
+  action:
+    description: Work on privilege or member level.
+    choices: ["privilege", "member"]
+    default: privilege
+    required: false
+  state:
+    description: The state to ensure.
+    choices: ["present", "absent", "renamed"]
+    default: present
+    required: true
+"""
+
+EXAMPLES = """
+# Ensure privilege "Broad Privilege" is present
+- ipaprivilege:
+    ipaadmin_password: SomeADMINpassword
+    name: Broad Privilege
+    description: Broad Privilege
+
+# Ensure privilege "Broad Privilege" has permissions set
+- ipaprivilege:
+    ipaadmin_password: SomeADMINpassword
+    name: Broad Privilege
+    permission:
+    - "Write IPA Configuration"
+    - "System: Write DNS Configuration"
+    - "System: Update DNS Entries"
+    action: member
+
+# Ensure privilege member permission 'Write IPA Configuration' is absent
+- ipaprivilege:
+    ipaadmin_password: SomeADMINpassword
+    name: Broad Privilege
+    permission:
+    - "Write IPA Configuration"
+    action: member
+    state: absent
+
+# Rename privilege "Broad Privilege" to "DNS Special Privilege"
+- ipaprivilege:
+    ipaadmin_password: SomeADMINpassword
+    name: Broad Privilege
+    rename: DNS Special Privilege
+    state: renamed
+
+# Ensure privilege "DNS Special Privilege" is absent
+- ipaprivilege:
+    ipaadmin_password: SomeADMINpassword
+    name: DNS Special Privilege
+    state: absent
+"""
+
+RETURN = """
+"""
+
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.ansible_freeipa_module import \
+    temp_kinit, temp_kdestroy, valid_creds, api_connect, api_command, \
+    compare_args_ipa, module_params_get, gen_add_del_lists
+import six
+
+if six.PY3:
+    unicode = str
+
+
+def find_privilege(module, name):
+    """Find if a privilege with the given name already exist."""
+    try:
+        _result = api_command(module, "privilege_show", name, {"all": True})
+    except Exception:  # pylint: disable=broad-except
+        # An exception is raised if privilege name is not found.
+        return None
+    else:
+        return _result["result"]
+
+
+def main():
+    ansible_module = AnsibleModule(
+        argument_spec=dict(
+            # general
+            ipaadmin_principal=dict(type="str", default="admin"),
+            ipaadmin_password=dict(type="str", required=False, no_log=True),
+
+            name=dict(type="list", aliases=["cn"],
+                      default=None, required=True),
+            # present
+            description=dict(required=False, type='str', default=None),
+            rename=dict(required=False, type='str', default=None,
+                        aliases=["new_name"], ),
+            permission=dict(required=False, type='list', default=None),
+            action=dict(type="str", default="privilege",
+                        choices=["member", "privilege"]),
+            # state
+            state=dict(type="str", default="present",
+                       choices=["present", "absent", "renamed"]),
+        ),
+        supports_check_mode=True,
+    )
+
+    ansible_module._ansible_debug = True
+
+    # Get parameters
+
+    # general
+    ipaadmin_principal = module_params_get(ansible_module,
+                                           "ipaadmin_principal")
+    ipaadmin_password = module_params_get(ansible_module, "ipaadmin_password")
+    names = module_params_get(ansible_module, "name")
+
+    # present
+    description = module_params_get(ansible_module, "description")
+    permission = module_params_get(ansible_module, "permission")
+    rename = module_params_get(ansible_module, "rename")
+    action = module_params_get(ansible_module, "action")
+
+    # state
+    state = module_params_get(ansible_module, "state")
+
+    # Check parameters
+    invalid = []
+
+    if state == "present":
+        if len(names) != 1:
+            ansible_module.fail_json(
+                msg="Only one privilege be added at a time.")
+        if action == "member":
+            invalid = ["description"]
+
+    if state == "absent":
+        if len(names) < 1:
+            ansible_module.fail_json(msg="No name given.")
+        invalid = ["description", "rename"]
+        if action == "privilege":
+            invalid.append("permission")
+
+    if state == "renamed":
+        if len(names) != 1:
+            ansible_module.fail_json(
+                msg="Only one privilege be added at a time.")
+        invalid = ["description", "permission"]
+        if action != "privilege":
+            ansible_module.fail_json(
+                msg="Action '%s' can not be used with state '%s'"
+                    % (action, state))
+
+    for x in invalid:
+        if vars()[x] is not None:
+            ansible_module.fail_json(
+                msg="Argument '%s' can not be used with action "
+                "'%s' and state '%s'" % (x, action, state))
+
+    # Init
+
+    changed = False
+    exit_args = {}
+    ccache_dir = None
+    ccache_name = None
+    try:
+        if not valid_creds(ansible_module, ipaadmin_principal):
+            ccache_dir, ccache_name = temp_kinit(ipaadmin_principal,
+                                                 ipaadmin_password)
+        api_connect()
+
+        commands = []
+        for name in names:
+            # Make sure privilege exists
+            res_find = find_privilege(ansible_module, name)
+
+            # Create command
+            if state == "present":
+
+                args = {}
+                if description:
+                    args['description'] = description
+
+                if action == "privilege":
+                    # Found the privilege
+                    if res_find is not None:
+                        # For all settings is args, check if there are
+                        # different settings in the find result.
+                        # If yes: modify
+                        if not compare_args_ipa(ansible_module, args,
+                                                res_find):
+                            commands.append([name, "privilege_mod", args])
+                    else:
+                        commands.append([name, "privilege_add", args])
+
+                    member_args = {}
+                    if permission:
+                        member_args['permission'] = permission
+
+                    if not compare_args_ipa(ansible_module, member_args,
+                                            res_find):
+
+                        # Generate addition and removal lists
+                        permission_add, permission_del = gen_add_del_lists(
+                                permission, res_find.get("member_permission"))
+
+                        # Add members
+                        if len(permission_add) > 0:
+                            commands.append([name, "privilege_add_permission",
+                                             {
+                                                 "permission": permission_add,
+                                             }])
+                        # Remove members
+                        if len(permission_del) > 0:
+                            commands.append([
+                                name,
+                                "privilege_remove_permission",
+                                {"permission": permission_del}
+                            ])
+
+                elif action == "member":
+                    if res_find is None:
+                        ansible_module.fail_json(
+                            msg="No privilege '%s'" % name)
+
+                    if permission is None:
+                        ansible_module.fail_json(msg="No permission given")
+
+                    commands.append([name, "privilege_add_permission",
+                                     {"permission": permission}])
+
+            elif state == "absent":
+                if action == "privilege":
+                    if res_find is not None:
+                        commands.append([name, "privilege_del", {}])
+
+                elif action == "member":
+                    if res_find is None:
+                        ansible_module.fail_json(
+                            msg="No privilege '%s'" % name)
+
+                    if permission is None:
+                        ansible_module.fail_json(msg="No permission given")
+
+                    commands.append([name, "privilege_remove_permission",
+                                     {
+                                         "permission": permission,
+                                     }])
+
+            elif state == "renamed":
+                if not rename:
+                    ansible_module.fail_json(msg="No rename value given.")
+
+                if res_find is None:
+                    ansible_module.fail_json(
+                        msg="No privilege found to be renamed: '%s'" % (name))
+
+                if name != rename:
+                    commands.append(
+                        [name, "privilege_mod", {"rename": rename}])
+
+            else:
+                ansible_module.fail_json(msg="Unkown state '%s'" % state)
+
+        # Execute commands
+
+        for name, command, args in commands:
+            try:
+                result = api_command(ansible_module, command, name,
+                                     args)
+                if "completed" in result:
+                    if result["completed"] > 0:
+                        changed = True
+                else:
+                    changed = True
+            except Exception as e:
+                ansible_module.fail_json(
+                    msg="%s: %s: %s" % (command, name, str(e)))
+            # Get all errors
+            # All "already a member" and "not a member" failures in the
+            # result are ignored. All others are reported.
+            errors = []
+            for failed_item in result.get("failed", []):
+                failed = result["failed"][failed_item]
+                for member_type in failed:
+                    for member, failure in failed[member_type]:
+                        if "already a member" in failure \
+                           or "not a member" in failure:
+                            continue
+                        errors.append("%s: %s %s: %s" % (
+                            command, member_type, member, failure))
+            if len(errors) > 0:
+                ansible_module.fail_json(msg=", ".join(errors))
+
+    except Exception as e:
+        ansible_module.fail_json(msg=str(e))
+
+    finally:
+        temp_kdestroy(ccache_dir, ccache_name)
+
+    # Done
+
+    ansible_module.exit_json(changed=changed, **exit_args)
+
+
+if __name__ == "__main__":
+    main()

tests/privilege/test_privilege.yml

+---
+- name: Test privilege
+  hosts: ipaserver
+  become: true
+
+  tasks:
+
+  # CLEANUP TEST ITEMS
+
+  - name: Ensure privilege "Broad Privilege" is absent
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name:
+      - Broad Privilege
+      - DNS Privilege
+      state: absent
+
+  # CREATE TEST ITEMS
+
+  # TESTS
+
+  - name: Ensure privilege Broad Privilege is present
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      description: Broad Privilege
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege is present again
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      description: Broad Privilege
+    register: result
+    failed_when: result.changed or result.failed
+
+  - name: Change privilege Broad Privilege description
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      description: Broad Privilege description
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege has permissions
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      - "System: Write DNS Configuration"
+      - "System: Update DNS Entries"
+      action: member
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege has permissions, again
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      - "System: Write DNS Configuration"
+      - "System: Update DNS Entries"
+      action: member
+    register: result
+    failed_when: result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege member permission "Write IPA Configuration" is absent
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      action: member
+      state: absent
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege member permission "Write IPA Configuration" is absent again
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+      action: member
+      state: absent
+    register: result
+    failed_when: result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege is absent
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      state: absent
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege is present
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege is renamed to "DNS Privilege"
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      rename: DNS Privilege
+      state: renamed
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege cannot be renamed, because it does not exist.
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      rename: DNS Privilege
+      state: renamed
+    register: result
+    failed_when: not result.failed or "No privilege found to be renamed" not in result.msg
+
+  - name: Ensure privilege cannot be renamed to the same name.
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: DNS Privilege
+      rename: DNS Privilege
+      state: renamed
+    register: result
+    failed_when: result.changed or result.failed
+
+  - name: Ensure privilege cannot be renamed to the same name.
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: DNS Privilege
+      rename: DNS Privilege
+      state: renamed
+    register: result
+    failed_when: result.changed or result.failed
+
+  # CLEANUP TEST ITEMS
+
+  - name: Ensure privilege testing privileges are absent
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name:
+      - Broad Privilege
+      - DNS Privilege
+      state: absent