New sudocmd management module.

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

  plugins/modules/ipasudocmd.py

The sudocmd module allows to add or remove sudo commands.

The sudocmd module is as compatible as possible to the Ansible upstream
ipa_sudocmd module.

Here is the documentation for the module:

  README-sudocmd.md

New example playbooks have been added:

  playbooks/sudocmd/ensure-sudocmd-is-absent.yml
  playbooks/sudocmd/ensure-sudocmd-is-present.yml

Signed-off-by: Rafael Guterres Jeffman <rjeffman@redhat.com>

README-sudocmd.md

+Sudocmd module
+================
+
+Description
+-----------
+
+The sudocmd module allows to ensure presence and absence of sudo command.
+
+The sudocmd module is as compatible as possible to the Ansible upstream `ipa_sudocmd` module.
+
+
+Features
+--------
+* Sudo command management
+
+
+Supported FreeIPA Versions
+--------------------------
+
+FreeIPA versions 4.4.0 and up are supported by the ipa_sudocmd 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 sudocmd exists:
+
+```yaml
+---
+- name: Playbook to handle sudocmd
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure sudocmd is present
+  - ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: present
+```
+
+Example playbook to make sure sudocmd is absent:
+
+```yaml
+---
+- name: Playbook to handle sudocmd
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure sudocmd are absent
+  - ipahostgroup:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: absent
+```
+
+Variables
+=========
+
+ipasudocmd
+-------
+
+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` \| `sudocmd` | The sudo command strings. | yes
+`description` | The command description string. | no
+`nomembers` | Suppress processing of membership attributes. (bool) | no
+`state` | The state to ensure. It can be one of `present` or `absent`, default: `present`. | no
+
+
+Authors
+=======
+
+Rafael Guterres Jeffman

README.md

@@ -14,6 +14,7 @@ Features
 * Modules for group management
 * Modules for host management
 * Modules for hostgroup management
+* Modules for sudocmd management
 * Modules for topology management
 * Modules for user management
 
@@ -391,6 +392,7 @@ Modules in plugin/modules
 * [ipagroup](README-group.md)
 * [ipahost](README-host.md)
 * [ipahostgroup](README-hostgroup.md)
+* [ipasudocmd](README-sudocmd.md)
 * [ipatopologysegment](README-topology.md)
 * [ipatopologysuffix](README-topology.md)
 * [ipauser](README-user.md)

playbooks/sudocmd/ensure-sudocmd-is-absent.yml

+---
+- name: Playbook to manage sudo command
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure sudo command is absent
+  - ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: absent

playbooks/sudocmd/ensure-sudocmd-is-present.yml

+---
+- name: Playbook to manage sudo command
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure sudo command is present
+  - ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: present

plugins/modules/ipasudocmd.py

+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Authors:
+#   Rafael Guterres Jeffman <rjeffman@redhat.com>
+#
+# Copyright (C) 2019 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_METADATA = {
+    "metadata_version": "1.0",
+    "supported_by": "community",
+    "status": ["preview"],
+}
+
+
+DOCUMENTATION = """
+---
+module: ipasudocmd
+short description: Manage FreeIPA sudo command
+description: Manage FreeIPA sudo command
+options:
+  ipaadmin_principal:
+    description: The admin principal
+    default: admin
+  ipaadmin_password:
+    description: The admin password
+    required: false
+  name:
+    description: The sudo command
+    required: true
+    aliases: ["sudocmd"]
+  description:
+    description: The command description
+    required: false
+  state:
+    description: State to ensure
+    default: present
+    choices: ["present", "absent"]
+author:
+    - Rafael Jeffman
+"""
+
+EXAMPLES = """
+# Ensure sudocmd is present
+- ipacommand:
+    ipaadmin_password: MyPassword123
+    name: su
+    state: present
+
+# Ensure sudocmd is absent
+- ipacommand:
+    ipaadmin_password: MyPassword123
+    name: su
+    state: absent
+"""
+
+RETURN = """
+"""
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils._text import to_text
+from ansible.module_utils.ansible_freeipa_module import temp_kinit, \
+    temp_kdestroy, valid_creds, api_connect, api_command, compare_args_ipa
+
+
+def find_sudocmd(module, name):
+    _args = {
+        "all": True,
+        "sudocmd": to_text(name),
+    }
+
+    _result = api_command(module, "sudocmd_find", to_text(name), _args)
+
+    if len(_result["result"]) > 1:
+        module.fail_json(
+            msg="There is more than one sudocmd '%s'" % (name))
+    elif len(_result["result"]) == 1:
+        return _result["result"][0]
+    else:
+        return None
+
+
+def gen_args(description):
+    _args = {}
+    if description is not None:
+        _args["description"] = description
+
+    return _args
+
+
+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=["sudocmd"], default=None,
+                      required=True),
+            # present
+            description=dict(type="str", default=None),
+            # state
+            state=dict(type="str", default="present",
+                       choices=["present", "absent"]),
+        ),
+        supports_check_mode=True,
+    )
+
+    ansible_module._ansible_debug = True
+
+    # Get parameters
+
+    # general
+    ipaadmin_principal = ansible_module.params.get("ipaadmin_principal")
+    ipaadmin_password = ansible_module.params.get("ipaadmin_password")
+    names = ansible_module.params.get("name")
+
+    # present
+    description = ansible_module.params.get("description")
+    # state
+    state = ansible_module.params.get("state")
+
+    # Check parameters
+    if state == "absent":
+        invalid = ["description"]
+        for x in invalid:
+            if vars()[x] is not None:
+                ansible_module.fail_json(
+                    msg="Argument '%s' can not be used with state '%s'" %
+                    (x, 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 hostgroup exists
+            res_find = find_sudocmd(ansible_module, name)
+
+            # Create command
+            if state == "present":
+                # Generate args
+                args = gen_args(description)
+                if res_find is not None:
+                    # For all settings in 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, "sudocmd_mod", args])
+                else:
+                    commands.append([name, "sudocmd_add", args])
+                    # Set res_find to empty dict for next step
+                    res_find = {}
+            elif state == "absent":
+                if res_find is not None:
+                    commands.append([name, "sudocmd_del", {}])
+            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, to_text(name),
+                                     args)
+                # Check if any changes were made by any command
+                if command == 'sudocmd_del':
+                    changed |= "Deleted" in result['summary']
+                elif command == 'sudocmd_add':
+                    changed |= "Added" in result['summary']
+            except Exception as e:
+                ansible_module.fail_json(msg="%s: %s: %s" % (command, name,
+                                                             str(e)))
+
+    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/sudocmd/test_sudocmd.yml

+---
+
+- name: Tests
+  hosts: ipaserver
+  become: true
+  gather_facts: false
+
+  tasks:
+  - name: Ensure sudocmds are absent
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/bin/su
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: absent
+
+  - name: Ensure sudocmd is present
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: present
+    register: result
+    failed_when: not result.changed
+
+  - name: Ensure sudocmd is present again
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: present
+    register: result
+    failed_when: result.changed
+
+  - name: Ensure sudocmd is absent
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: absent
+    register: result
+    failed_when: not result.changed
+
+  - name: Ensure sudocmd is absent again
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name: /usr/bin/su
+      state: absent
+    register: result
+    failed_when: result.changed
+
+  - name: Ensure multiple sudocmd are present
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: present
+    register: result
+    failed_when: not result.changed
+
+  - name: Ensure multiple sudocmd are present again
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: present
+    register: result
+    failed_when: result.changed
+
+  - name: Ensure multiple sudocmd are absent
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: absent
+    register: result
+    failed_when: not result.changed
+
+  - name: Ensure multiple sudocmd are absent again
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: absent
+    register: result
+    failed_when: result.changed
+  - name: Ensure sudocmds are absent
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/bin/su
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: absent
+
+  - name: Ensure sudocmds are absent
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      state: absent
+
+  - name: Ensure sudocmds are present
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/iwlist
+      state: present
+
+  - name: Ensure multiple sudocmd are absent when only one was present
+    ipasudocmd:
+      ipaadmin_password: MyPassword123
+      name:
+      - /usr/sbin/ifconfig
+      - /usr/sbin/iwlist
+      state: absent
+    register: result
+    failed_when: not result.changed