Adding aireos_config module (#27408)

* Adding aireos_config module.

* Fixing pep8 W291.

lib/ansible/modules/network/aireos/aireos_config.py

@@ -0,0 +1,325 @@
+#!/usr/bin/python
+#
+# This file is part of Ansible
+#
+# Ansible 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.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+ANSIBLE_METADATA = {'metadata_version': '1.0',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = """
+---
+module: aireos_config
+version_added: "2.4"
+author: "James Mighion (@jmighion)"
+short_description: Manage Cisco WLC configurations
+description:
+  - AireOS does not use a block indent file syntax, so there are no sections or parents.
+    This module provides an implementation for working with AireOS configurations in
+    a deterministic way.
+extends_documentation_fragment: aireos
+options:
+  lines:
+    description:
+      - The ordered set of commands that should be configured.
+        The commands must be the exact same commands as found
+        in the device run-config.  Be sure to note the configuration
+        command syntax as some commands are automatically modified by the
+        device config parser.
+    required: false
+    default: null
+    aliases: ['commands']
+  src:
+    description:
+      - Specifies the source path to the file that contains the configuration
+        or configuration template to load.  The path to the source file can
+        either be the full path on the Ansible control host or a relative
+        path from the playbook or role root directory.  This argument is mutually
+        exclusive with I(lines).
+    required: false
+    default: null
+  before:
+    description:
+      - The ordered set of commands to push on to the command stack if
+        a change needs to be made.  This allows the playbook designer
+        the opportunity to perform configuration commands prior to pushing
+        any changes without affecting how the set of commands are matched
+        against the system.
+    required: false
+    default: null
+  after:
+    description:
+      - The ordered set of commands to append to the end of the command
+        stack if a change needs to be made.  Just like with I(before) this
+        allows the playbook designer to append a set of commands to be
+        executed after the command set.
+    required: false
+    default: null
+  match:
+    description:
+      - Instructs the module on the way to perform the matching of
+        the set of commands against the current device config.  If
+        match is set to I(line), commands are matched line by line.
+        If match is set to I(none), the module will not attempt to
+        compare the source configuration with the running
+        configuration on the remote device.
+    required: false
+    default: line
+    choices: ['line', 'none']
+  backup:
+    description:
+      - This argument will cause the module to create a full backup of
+        the current C(running-config) from the remote device before any
+        changes are made.  The backup file is written to the C(backup)
+        folder in the playbook root directory.  If the directory does not
+        exist, it is created.
+    required: false
+    default: no
+    type: bool
+  running_config:
+    description:
+      - The module, by default, will connect to the remote device and
+        retrieve the current running-config to use as a base for comparing
+        against the contents of source.  There are times when it is not
+        desirable to have the task get the current running-config for
+        every task in a playbook.  The I(running_config) argument allows the
+        implementer to pass in the configuration to use as the base
+        config for comparison.
+    required: false
+    default: null
+    aliases: ['config']
+  save:
+    description:
+      - The C(save) argument instructs the module to save the running-
+        config to the startup-config at the conclusion of the module
+        running.  If check mode is specified, this argument is ignored.
+    required: false
+    default: no
+    type: bool
+  diff_against:
+    description:
+      - When using the C(ansible-playbook --diff) command line argument
+        the module can generate diffs against different sources.
+      - When this option is configured as I(intended), the module will
+        return the diff of the running-config against the configuration
+        provided in the C(intended_config) argument.
+      - When this option is configured as I(running), the module will
+        return the before and after diff of the running-config with respect
+        to any changes made to the device configuration.
+    required: false
+    choices: ['intended', 'running']
+  diff_ignore_lines:
+    description:
+      - Use this argument to specify one or more lines that should be
+        ignored during the diff.  This is used for lines in the configuration
+        that are automatically updated by the system.  This argument takes
+        a list of regular expressions or exact line matches.
+    required: false
+  intended_config:
+    description:
+      - The C(intended_config) provides the master configuration that
+        the node should conform to and is used to check the final
+        running-config against.   This argument will not modify any settings
+        on the remote device and is strictly used to check the compliance
+        of the current device's configuration against.  When specifying this
+        argument, the task should also modify the C(diff_against) value and
+        set it to I(intended).
+    required: false
+"""
+
+EXAMPLES = """
+- name: configure configuration
+  aireos_config:
+    lines: sysname testDevice
+
+- name: diff the running-config against a provided config
+  aireos_config:
+    diff_against: intended
+    intended: "{{ lookup('file', 'master.cfg') }}"
+
+- name: load new acl into device
+  aireos_config:
+    lines:
+      - acl create testACL
+      - acl rule protocol testACL 1 any
+      - acl rule direction testACL 3 in
+    before: acl delete testACL
+"""
+
+RETURN = """
+commands:
+  description: The set of commands that will be pushed to the remote device
+  returned: always
+  type: list
+  sample: ['hostname foo', 'vlan 1', 'name default']
+updates:
+  description: The set of commands that will be pushed to the remote device
+  returned: always
+  type: list
+  sample: ['hostname foo', 'vlan 1', 'name default']
+backup_path:
+  description: The full path to the backup file
+  returned: when backup is yes
+  type: string
+  sample: /playbooks/ansible/backup/aireos_config.2016-07-16@22:28:34
+"""
+import re
+import time
+
+from ansible.module_utils.aireos import run_commands, get_config, load_config, sanitize
+from ansible.module_utils.aireos import aireos_argument_spec
+from ansible.module_utils.aireos import check_args as aireos_check_args
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.netcli import Conditional
+from ansible.module_utils.netcfg import NetworkConfig, dumps
+from ansible.module_utils.six import iteritems
+
+
+def get_running_config(module, config=None):
+    contents = module.params['running_config']
+    if not contents:
+        if config:
+            contents = config
+        else:
+            contents = get_config(module)
+    return NetworkConfig(indent=1, contents=contents)
+
+
+def get_candidate(module):
+    candidate = NetworkConfig(indent=1)
+
+    if module.params['src']:
+        candidate.load(module.params['src'])
+    elif module.params['lines']:
+        candidate.add(module.params['lines'])
+    return candidate
+
+
+def main():
+    """ main entry point for module execution
+    """
+    argument_spec = dict(
+        src=dict(type='path'),
+
+        lines=dict(aliases=['commands'], type='list'),
+
+        before=dict(type='list'),
+        after=dict(type='list'),
+
+        match=dict(default='line', choices=['line', 'none']),
+
+        running_config=dict(aliases=['config']),
+        intended_config=dict(),
+
+        backup=dict(type='bool', default=False),
+
+        save=dict(type='bool', default=False),
+
+        diff_against=dict(choices=['running', 'intended']),
+        diff_ignore_lines=dict(type='list')
+    )
+
+    argument_spec.update(aireos_argument_spec)
+
+    mutually_exclusive = [('lines', 'src')]
+
+    required_if = [('diff_against', 'intended', ['intended_config'])]
+
+    module = AnsibleModule(argument_spec=argument_spec,
+                           mutually_exclusive=mutually_exclusive,
+                           required_if=required_if,
+                           supports_check_mode=True)
+
+    warnings = list()
+    aireos_check_args(module, warnings)
+    result = {'changed': False, 'warnings': warnings}
+
+    config = None
+
+    if module.params['backup'] or (module._diff and module.params['diff_against'] == 'running'):
+        contents = get_config(module)
+        config = NetworkConfig(indent=1, contents=contents)
+        if module.params['backup']:
+            result['__backup__'] = contents
+
+    if any((module.params['src'], module.params['lines'])):
+        match = module.params['match']
+
+        candidate = get_candidate(module)
+
+        if match != 'none':
+            config = get_running_config(module, config)
+            configobjs = candidate.difference(config, match=match)
+        else:
+            configobjs = candidate.items
+
+        if configobjs:
+            commands = dumps(configobjs, 'commands').split('\n')
+
+            if module.params['before']:
+                commands[:0] = module.params['before']
+
+            if module.params['after']:
+                commands.extend(module.params['after'])
+
+            result['commands'] = commands
+            result['updates'] = commands
+
+            if not module.check_mode:
+                load_config(module, commands)
+
+            result['changed'] = True
+
+    diff_ignore_lines = module.params['diff_ignore_lines']
+
+    if module.params['save']:
+        result['changed'] = True
+        if not module.check_mode:
+            command = {"command": "save config", "prompt": "Are you sure you want to save", "answer": "y"}
+            run_commands(module, command)
+        else:
+            module.warn('Skipping command `save config` due to check_mode.  Configuration not copied to non-volatile storage')
+
+    if module._diff:
+        output = run_commands(module, 'show run-config commands')
+        contents = sanitize(output[0])
+
+        # recreate the object in order to process diff_ignore_lines
+        running_config = NetworkConfig(indent=1, contents=contents, ignore_lines=diff_ignore_lines)
+
+        if module.params['diff_against'] == 'running':
+            if module.check_mode:
+                module.warn("unable to perform diff against running-config due to check mode")
+                contents = None
+            else:
+                contents = config.config_text
+        elif module.params['diff_against'] == 'intended':
+            contents = module.params['intended_config']
+
+        if contents is not None:
+            base_config = NetworkConfig(indent=1, contents=contents, ignore_lines=diff_ignore_lines)
+
+            if running_config.sha1 != base_config.sha1:
+                result.update({
+                    'changed': True,
+                    'diff': {'before': str(base_config), 'after': str(running_config)}
+                })
+
+    module.exit_json(**result)
+
+
+if __name__ == '__main__':
+    main()