mirror of https://github.com/ansible/ansible.git
Peter Sprygada
8 years ago
committed by
GitHub
commit
be3bc4dcec
@ -0,0 +1,670 @@
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#!/usr/bin/python
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
|
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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DOCUMENTATION = '''
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---
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module: nxos_snapshot
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version_added: "2.2"
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short_description: Manage snapshots of the running states of selected features.
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description:
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- Create snapshots of the running states of selected features, add
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new show commands for snapshot creation, delete and compare
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existing snapshots.
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extends_documentation_fragment: nxos
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author:
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- Gabriele Gerbino (@GGabriele)
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notes:
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- C(transpot=cli) may cause timeout errors.
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- The C(element_key1) and C(element_key2) parameter specify the tags used
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to distinguish among row entries. In most cases, only the element_key1
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parameter needs to specified to be able to distinguish among row entries.
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- C(action=compare) will always store a comparison report on a local file.
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options:
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action:
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description:
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- Define what snapshot action the module would perform.
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required: true
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choices: ['create','add','compare','delete']
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snapshot_name:
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description:
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- Snapshot name, to be used when C(action=create)
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or C(action=delete).
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required: false
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default: null
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description:
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description:
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- Snapshot description to be used when C(action=create).
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required: false
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default: null
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snapshot1:
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description:
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- First snapshot to be used when C(action=compare).
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required: false
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default: null
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snapshot2:
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description:
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- Second snapshot to be used when C(action=compare).
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required: false
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default: null
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comparison_results_file:
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description:
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- Name of the file where snapshots comparison will be store.
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required: false
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default: null
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compare_option:
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description:
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- Snapshot options to be used when C(action=compare).
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required: false
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default: null
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choices: ['summary','ipv4routes','ipv6routes']
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section:
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description:
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- Used to name the show command output, to be used
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when C(action=add).
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required: false
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default: null
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show_command:
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description:
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- Specify a new show command, to be used when C(action=add).
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required: false
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default: null
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row_id:
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description:
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- Specifies the tag of each row entry of the show command's
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XML output, to be used when C(action=add).
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required: false
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default: null
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element_key1:
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description:
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- Specify the tags used to distinguish among row entries,
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to be used when C(action=add).
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required: false
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default: null
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element_key2:
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description:
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- Specify the tags used to distinguish among row entries,
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to be used when C(action=add).
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required: false
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default: null
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save_snapshot_locally:
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description:
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- Specify to locally store a new created snapshot,
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to be used when C(action=create).
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required: false
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default: false
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choices: ['true','false']
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path:
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description:
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- Specify the path of the file where new created snapshot or
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snapshots comparison will be stored, to be used when
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C(action=create) and C(save_snapshot_locally=true) or
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C(action=compare).
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required: false
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default: './'
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'''
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EXAMPLES = '''
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# Create a snapshot and store it locally
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- nxos_snapshot:
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action: create
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snapshot_name: test_snapshot
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description: Done with Ansible
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save_snapshot_locally: true
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path: /home/user/snapshots/
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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# Delete a snapshot
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- nxos_snapshot:
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action: delete
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snapshot_name: test_snapshot
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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# Delete all existing snapshots
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- nxos_snapshot:
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action: delete_all
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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# Add a show command for snapshots creation
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- nxos_snapshot:
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section: myshow
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show_command: show ip interface brief
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row_id: ROW_intf
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element_key1: intf-name
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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# Compare two snapshots
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- nxos_snapshot:
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action: compare
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snapshot1: pre_snapshot
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snapshot2: post_snapshot
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comparison_results_file: compare_snapshots.txt
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compare_option: summary
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path: '../snapshot_reports/'
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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'''
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RETURN = '''
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existing_snapshots:
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description: list of existing snapshots.
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returned: verbose mode
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type: list
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sample: [{"date": "Tue Sep 13 10:58:08 2016",
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"description": "First snapshot", "name": "first_snap"},
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{"date": "Tue Sep 13 10:27:31 2016", "description": "Pre-snapshot",
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"name": "pre_snapshot"}]
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final_snapshots:
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description: list of final snapshots.
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returned: verbose mode
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type: list
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sample: [{"date": "Tue Sep 13 10:58:08 2016",
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"description": "First snapshot", "name": "first_snap"},
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{"date": "Tue Sep 13 10:27:31 2016", "description": "Pre-snapshot",
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"name": "pre_snapshot"},
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{"date": "Tue Sep 13 10:37:50 2016", "description": "Post-snapshot",
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"name": "post_snapshot"}]
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report_file:
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description: name of the file where the new snapshot or snapshots
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comparison have been stored.
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returned: verbose mode
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type: string
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sample: "/home/gabriele/Desktop/ntc-ansible/ansible_snapshot"
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updates:
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description: commands sent to the device
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returned: verbose mode
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type: list
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sample: ["snapshot create post_snapshot Post-snapshot"]
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changed:
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description: check to see if a change was made on the device
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returned: always
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type: boolean
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sample: true
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'''
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import os
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# COMMON CODE FOR MIGRATION
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import re
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from ansible.module_utils.basic import get_exception
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from ansible.module_utils.netcfg import NetworkConfig, ConfigLine
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from ansible.module_utils.shell import ShellError
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try:
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from ansible.module_utils.nxos import get_module
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except ImportError:
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from ansible.module_utils.nxos import NetworkModule
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def to_list(val):
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if isinstance(val, (list, tuple)):
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return list(val)
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elif val is not None:
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return [val]
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else:
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return list()
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class CustomNetworkConfig(NetworkConfig):
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def expand_section(self, configobj, S=None):
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if S is None:
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S = list()
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S.append(configobj)
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for child in configobj.children:
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if child in S:
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continue
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self.expand_section(child, S)
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return S
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def get_object(self, path):
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for item in self.items:
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if item.text == path[-1]:
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parents = [p.text for p in item.parents]
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if parents == path[:-1]:
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return item
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def to_block(self, section):
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return '\n'.join([item.raw for item in section])
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def get_section(self, path):
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try:
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section = self.get_section_objects(path)
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return self.to_block(section)
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except ValueError:
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return list()
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def get_section_objects(self, path):
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if not isinstance(path, list):
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path = [path]
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obj = self.get_object(path)
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if not obj:
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raise ValueError('path does not exist in config')
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return self.expand_section(obj)
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def add(self, lines, parents=None):
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"""Adds one or lines of configuration
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"""
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ancestors = list()
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offset = 0
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obj = None
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## global config command
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if not parents:
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for line in to_list(lines):
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item = ConfigLine(line)
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item.raw = line
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if item not in self.items:
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self.items.append(item)
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else:
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for index, p in enumerate(parents):
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try:
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i = index + 1
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obj = self.get_section_objects(parents[:i])[0]
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ancestors.append(obj)
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except ValueError:
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# add parent to config
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offset = index * self.indent
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obj = ConfigLine(p)
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obj.raw = p.rjust(len(p) + offset)
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if ancestors:
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obj.parents = list(ancestors)
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ancestors[-1].children.append(obj)
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self.items.append(obj)
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ancestors.append(obj)
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# add child objects
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for line in to_list(lines):
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||||
# check if child already exists
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for child in ancestors[-1].children:
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if child.text == line:
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break
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else:
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||||
offset = len(parents) * self.indent
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item = ConfigLine(line)
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item.raw = line.rjust(len(line) + offset)
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item.parents = ancestors
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ancestors[-1].children.append(item)
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self.items.append(item)
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||||
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||||
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||||
def get_network_module(**kwargs):
|
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try:
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||||
return get_module(**kwargs)
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||||
except NameError:
|
||||
return NetworkModule(**kwargs)
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||||
|
||||
def get_config(module, include_defaults=False):
|
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config = module.params['config']
|
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if not config:
|
||||
try:
|
||||
config = module.get_config()
|
||||
except AttributeError:
|
||||
defaults = module.params['include_defaults']
|
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config = module.config.get_config(include_defaults=defaults)
|
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return CustomNetworkConfig(indent=2, contents=config)
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|
||||
def load_config(module, candidate):
|
||||
config = get_config(module)
|
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|
||||
commands = candidate.difference(config)
|
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commands = [str(c).strip() for c in commands]
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||||
|
||||
save_config = module.params['save']
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||||
|
||||
result = dict(changed=False)
|
||||
|
||||
if commands:
|
||||
if not module.check_mode:
|
||||
try:
|
||||
module.configure(commands)
|
||||
except AttributeError:
|
||||
module.config(commands)
|
||||
|
||||
if save_config:
|
||||
try:
|
||||
module.config.save_config()
|
||||
except AttributeError:
|
||||
module.execute(['copy running-config startup-config'])
|
||||
|
||||
result['changed'] = True
|
||||
result['updates'] = commands
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||||
|
||||
return result
|
||||
# END OF COMMON CODE
|
||||
|
||||
|
||||
def execute_show(cmds, module, command_type=None):
|
||||
command_type_map = {
|
||||
'cli_show': 'json',
|
||||
'cli_show_ascii': 'text'
|
||||
}
|
||||
|
||||
try:
|
||||
if command_type:
|
||||
response = module.execute(cmds, command_type=command_type)
|
||||
else:
|
||||
response = module.execute(cmds)
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending {0}'.format(cmds),
|
||||
error=str(clie))
|
||||
except AttributeError:
|
||||
try:
|
||||
if command_type:
|
||||
command_type = command_type_map.get(command_type)
|
||||
module.cli.add_commands(cmds, output=command_type)
|
||||
response = module.cli.run_commands()
|
||||
else:
|
||||
module.cli.add_commands(cmds, output=command_type)
|
||||
response = module.cli.run_commands()
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending {0}'.format(cmds),
|
||||
error=str(clie))
|
||||
return response
|
||||
|
||||
|
||||
def execute_show_command(command, module, command_type='cli_show_ascii'):
|
||||
cmds = [command]
|
||||
if module.params['transport'] == 'cli':
|
||||
body = execute_show(cmds, module)
|
||||
elif module.params['transport'] == 'nxapi':
|
||||
body = execute_show(cmds, module, command_type=command_type)
|
||||
|
||||
return body
|
||||
|
||||
|
||||
def get_existing(module):
|
||||
existing = []
|
||||
command = 'show snapshots'
|
||||
|
||||
body = execute_show_command(command, module)[0]
|
||||
if body:
|
||||
split_body = body.splitlines()
|
||||
snapshot_regex = ('(?P<name>\S+)\s+(?P<date>\w+\s+\w+\s+\d+\s+\d+'
|
||||
':\d+:\d+\s+\d+)\s+(?P<description>.*)')
|
||||
for snapshot in split_body:
|
||||
temp = {}
|
||||
try:
|
||||
match_snapshot = re.match(snapshot_regex, snapshot, re.DOTALL)
|
||||
snapshot_group = match_snapshot.groupdict()
|
||||
temp['name'] = snapshot_group['name']
|
||||
temp['date'] = snapshot_group['date']
|
||||
temp['description'] = snapshot_group['description']
|
||||
existing.append(temp)
|
||||
except AttributeError:
|
||||
pass
|
||||
|
||||
return existing
|
||||
|
||||
|
||||
def action_create(module, existing_snapshots):
|
||||
commands = list()
|
||||
exist = False
|
||||
for snapshot in existing_snapshots:
|
||||
if module.params['snapshot_name'] == snapshot['name']:
|
||||
exist = True
|
||||
|
||||
if exist is False:
|
||||
commands.append('snapshot create {0} {1}'.format(
|
||||
module.params['snapshot_name'], module.params['description']))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def action_add(module, existing_snapshots):
|
||||
commands = list()
|
||||
command = 'show snapshot sections'
|
||||
sections = []
|
||||
body = execute_show_command(command, module)[0]
|
||||
|
||||
if body:
|
||||
section_regex = '.*\[(?P<section>\S+)\].*'
|
||||
split_body = body.split('\n\n')
|
||||
for section in split_body:
|
||||
temp = {}
|
||||
for line in section.splitlines():
|
||||
try:
|
||||
match_section = re.match(section_regex, section, re.DOTALL)
|
||||
temp['section'] = match_section.groupdict()['section']
|
||||
except (AttributeError, KeyError):
|
||||
pass
|
||||
|
||||
if 'show command' in line:
|
||||
temp['show_command'] = line.split('show command: ')[1]
|
||||
elif 'row id' in line:
|
||||
temp['row_id'] = line.split('row id: ')[1]
|
||||
elif 'key1' in line:
|
||||
temp['element_key1'] = line.split('key1: ')[1]
|
||||
elif 'key2' in line:
|
||||
temp['element_key2'] = line.split('key2: ')[1]
|
||||
|
||||
if temp:
|
||||
sections.append(temp)
|
||||
|
||||
proposed = {
|
||||
'section': module.params['section'],
|
||||
'show_command': module.params['show_command'],
|
||||
'row_id': module.params['row_id'],
|
||||
'element_key1': module.params['element_key1'],
|
||||
'element_key2': module.params['element_key2'] or '-',
|
||||
}
|
||||
|
||||
if proposed not in sections:
|
||||
if module.params['element_key2']:
|
||||
commands.append('snapshot section add {0} "{1}" {2} {3} {4}'.format(
|
||||
module.params['section'], module.params['show_command'],
|
||||
module.params['row_id'], module.params['element_key1'],
|
||||
module.params['element_key2']))
|
||||
else:
|
||||
commands.append('snapshot section add {0} "{1}" {2} {3}'.format(
|
||||
module.params['section'], module.params['show_command'],
|
||||
module.params['row_id'], module.params['element_key1']))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def action_compare(module, existing_snapshots):
|
||||
command = 'show snapshot compare {0} {1}'.format(
|
||||
module.params['snapshot1'], module.params['snapshot2'])
|
||||
|
||||
if module.params['compare_option']:
|
||||
command += ' {0}'.format(module.params['compare_option'])
|
||||
|
||||
body = execute_show_command(command, module)[0]
|
||||
return body
|
||||
|
||||
|
||||
def action_delete(module, existing_snapshots):
|
||||
commands = list()
|
||||
|
||||
exist = False
|
||||
for snapshot in existing_snapshots:
|
||||
if module.params['snapshot_name'] == snapshot['name']:
|
||||
exist = True
|
||||
|
||||
if exist:
|
||||
commands.append('snapshot delete {0}'.format(
|
||||
module.params['snapshot_name']))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def action_delete_all(module, existing_snapshots):
|
||||
commands = list()
|
||||
if existing_snapshots:
|
||||
commands.append('snapshot delete all')
|
||||
return commands
|
||||
|
||||
|
||||
def invoke(name, *args, **kwargs):
|
||||
func = globals().get(name)
|
||||
if func:
|
||||
return func(*args, **kwargs)
|
||||
|
||||
|
||||
def execute_config_command(commands, module):
|
||||
try:
|
||||
module.configure(commands)
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending CLI commands',
|
||||
error=str(clie), commands=commands)
|
||||
except AttributeError:
|
||||
try:
|
||||
commands.insert(0, 'configure')
|
||||
module.cli.add_commands(commands, output='config')
|
||||
module.cli.run_commands()
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending CLI commands',
|
||||
error=str(clie), commands=commands)
|
||||
|
||||
|
||||
def get_snapshot(module):
|
||||
command = 'show snapshot dump {0}'.format(module.params['snapshot_name'])
|
||||
body = execute_show_command(command, module)[0]
|
||||
return body
|
||||
|
||||
|
||||
def write_on_file(content, filename, module):
|
||||
path = module.params['path']
|
||||
if path[-1] != '/':
|
||||
path += '/'
|
||||
filepath = '{0}{1}'.format(path, filename)
|
||||
try:
|
||||
report = open(filepath, 'w')
|
||||
report.write(content)
|
||||
report.close()
|
||||
except:
|
||||
module.fail_json(msg="Error while writing on file.")
|
||||
|
||||
return filepath
|
||||
|
||||
def main():
|
||||
argument_spec = dict(
|
||||
action=dict(required=True, choices=['create', 'add',
|
||||
'compare', 'delete',
|
||||
'delete_all']),
|
||||
snapshot_name=dict(required=False, type='str'),
|
||||
description=dict(required=False, type='str'),
|
||||
snapshot1=dict(required=False, type='str'),
|
||||
snapshot2=dict(required=False, type='str'),
|
||||
compare_option=dict(required=False,
|
||||
choices=['summary', 'ipv4routes', 'ipv6routes']),
|
||||
comparison_results_file=dict(required=False, type='str'),
|
||||
section=dict(required=False, type='str'),
|
||||
show_command=dict(required=False, type='str'),
|
||||
row_id=dict(required=False, type='str'),
|
||||
element_key1=dict(required=False, type='str'),
|
||||
element_key2=dict(required=False, type='str'),
|
||||
save_snapshot_locally=dict(required=False, type='bool',
|
||||
default=False),
|
||||
path=dict(required=False, type='str', default='./')
|
||||
)
|
||||
module = get_network_module(argument_spec=argument_spec,
|
||||
mutually_exclusive=[['delete_all',
|
||||
'delete_snapshot']],
|
||||
supports_check_mode=True)
|
||||
|
||||
action = module.params['action']
|
||||
comparison_results_file = module.params['comparison_results_file']
|
||||
|
||||
CREATE_PARAMS = ['snapshot_name', 'description']
|
||||
ADD_PARAMS = ['section', 'show_command', 'row_id', 'element_key1']
|
||||
COMPARE_PARAMS = ['snapshot1', 'snapshot2', 'comparison_results_file']
|
||||
|
||||
if not os.path.isdir(module.params['path']):
|
||||
module.fail_json(msg='{0} is not a valid directory name.'.format(
|
||||
module.params['path']))
|
||||
|
||||
if action == 'create':
|
||||
for param in CREATE_PARAMS:
|
||||
if not module.params[param]:
|
||||
module.fail_json(msg='snapshot_name and description are '
|
||||
'required when action=create')
|
||||
elif action == 'add':
|
||||
for param in ADD_PARAMS:
|
||||
if not module.params[param]:
|
||||
module.fail_json(msg='section, show_command, row_id '
|
||||
'and element_key1 are required '
|
||||
'when action=add')
|
||||
elif action == 'compare':
|
||||
for param in COMPARE_PARAMS:
|
||||
if not module.params[param]:
|
||||
module.fail_json(msg='snapshot1 and snapshot2 are required '
|
||||
'when action=create')
|
||||
elif action == 'delete' and not module.params['snapshot_name']:
|
||||
module.fail_json(msg='snapshot_name is required when action=delete')
|
||||
|
||||
existing_snapshots = invoke('get_existing', module)
|
||||
final_snapshots = existing_snapshots
|
||||
changed = False
|
||||
|
||||
action_results = invoke('action_%s' % action, module, existing_snapshots)
|
||||
|
||||
result = {}
|
||||
written_file = ''
|
||||
if module.check_mode and action != 'compare':
|
||||
module.exit_json(changed=True, commands=action_results)
|
||||
else:
|
||||
if action == 'compare':
|
||||
written_file = write_on_file(action_results,
|
||||
module.params['comparison_results_file'],
|
||||
module)
|
||||
result['updates'] = []
|
||||
else:
|
||||
if action_results:
|
||||
execute_config_command(action_results, module)
|
||||
changed = True
|
||||
final_snapshots = invoke('get_existing', module)
|
||||
result['updates'] = action_results
|
||||
|
||||
if (action == 'create' and
|
||||
module.params['save_snapshot_locally']):
|
||||
snapshot = get_snapshot(module)
|
||||
written_file = write_on_file(snapshot,
|
||||
module.params['snapshot_name'], module)
|
||||
|
||||
result['connected'] = module.connected
|
||||
result['changed'] = changed
|
||||
if module._verbosity > 0:
|
||||
end_state = invoke('get_existing', module)
|
||||
result['final_snapshots'] = final_snapshots
|
||||
result['existing_snapshots'] = existing_snapshots
|
||||
if written_file:
|
||||
result['report_file'] = written_file
|
||||
|
||||
module.exit_json(**result)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in New Issue