mirror of
https://github.com/ansible-collections/community.general.git
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436 lines
17 KiB
Python
436 lines
17 KiB
Python
#!/usr/bin/python
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# Copyright: (c) 2018, Extreme Networks Inc.
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: exos_config
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author: "Lance Richardson (@hlrichardson)"
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short_description: Manage Extreme Networks EXOS configuration sections
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description:
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- Extreme EXOS configurations use a simple flat text file syntax.
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This module provides an implementation for working with EXOS
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configuration lines in a deterministic way.
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notes:
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- Tested against EXOS version 22.6.0b19
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options:
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lines:
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description:
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- The ordered set of commands that should be configured in the
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section. The commands must be the exact same commands as found
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in the device running-config. Be sure to note the configuration
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command syntax as some commands are automatically modified by the
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device config parser.
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aliases: ['commands']
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src:
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description:
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- Specifies the source path to the file that contains the configuration
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or configuration template to load. The path to the source file can
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either be the full path on the Ansible control host or a relative
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path from the playbook or role root directory. This argument is mutually
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exclusive with I(lines).
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before:
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description:
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- The ordered set of commands to push on to the command stack if
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a change needs to be made. This allows the playbook designer
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the opportunity to perform configuration commands prior to pushing
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any changes without affecting how the set of commands are matched
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against the system.
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after:
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description:
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- The ordered set of commands to append to the end of the command
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stack if a change needs to be made. Just like with I(before) this
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allows the playbook designer to append a set of commands to be
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executed after the command set.
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match:
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description:
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- Instructs the module on the way to perform the matching of
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the set of commands against the current device config. If
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match is set to I(line), commands are matched line by line. If
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match is set to I(strict), command lines are matched with respect
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to position. If match is set to I(exact), command lines
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must be an equal match. Finally, if match is set to I(none), the
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module will not attempt to compare the source configuration with
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the running configuration on the remote device.
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default: line
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choices: ['line', 'strict', 'exact', 'none']
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replace:
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description:
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- Instructs the module on the way to perform the configuration
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on the device. If the replace argument is set to I(line) then
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the modified lines are pushed to the device in configuration
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mode. If the replace argument is set to I(block) then the entire
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command block is pushed to the device in configuration mode if any
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line is not correct.
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default: line
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choices: ['line', 'block']
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backup:
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description:
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- This argument will cause the module to create a full backup of
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the current C(running-config) from the remote device before any
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changes are made. If the C(backup_options) value is not given,
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the backup file is written to the C(backup) folder in the playbook
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root directory. If the directory does not exist, it is created.
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type: bool
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default: 'no'
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running_config:
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description:
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- The module, by default, will connect to the remote device and
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retrieve the current running-config to use as a base for comparing
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against the contents of source. There are times when it is not
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desirable to have the task get the current running-config for
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every task in a playbook. The I(running_config) argument allows the
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implementer to pass in the configuration to use as the base
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config for comparison.
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aliases: ['config']
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defaults:
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description:
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- This argument specifies whether or not to collect all defaults
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when getting the remote device running config. When enabled,
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the module will get the current config by issuing the command
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C(show running-config all).
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type: bool
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default: 'no'
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save_when:
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description:
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- When changes are made to the device running-configuration, the
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changes are not copied to non-volatile storage by default. Using
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this argument will change that behavior. If the argument is set to
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I(always), then the running-config will always be copied to the
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startup-config and the I(modified) flag will always be set to
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True. If the argument is set to I(modified), then the running-config
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will only be copied to the startup-config if it has changed since
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the last save to startup-config. If the argument is set to
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I(never), the running-config will never be copied to the
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startup-config. If the argument is set to I(changed), then the running-config
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will only be copied to the startup-config if the task has made a change.
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default: never
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choices: ['always', 'never', 'modified', 'changed']
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diff_against:
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description:
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- When using the C(ansible-playbook --diff) command line argument
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the module can generate diffs against different sources.
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- When this option is configure as I(startup), the module will return
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the diff of the running-config against the startup-config.
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- When this option is configured as I(intended), the module will
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return the diff of the running-config against the configuration
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provided in the C(intended_config) argument.
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- When this option is configured as I(running), the module will
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return the before and after diff of the running-config with respect
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to any changes made to the device configuration.
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default: running
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choices: ['running', 'startup', 'intended']
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diff_ignore_lines:
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description:
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- Use this argument to specify one or more lines that should be
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ignored during the diff. This is used for lines in the configuration
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that are automatically updated by the system. This argument takes
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a list of regular expressions or exact line matches.
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intended_config:
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description:
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- The C(intended_config) provides the master configuration that
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the node should conform to and is used to check the final
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running-config against. This argument will not modify any settings
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on the remote device and is strictly used to check the compliance
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of the current device's configuration against. When specifying this
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argument, the task should also modify the C(diff_against) value and
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set it to I(intended).
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backup_options:
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description:
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- This is a dict object containing configurable options related to backup file path.
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The value of this option is read only when C(backup) is set to I(yes), if C(backup) is set
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to I(no) this option will be silently ignored.
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suboptions:
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filename:
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description:
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- The filename to be used to store the backup configuration. If the filename
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is not given it will be generated based on the hostname, current time and date
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in format defined by <hostname>_config.<current-date>@<current-time>
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dir_path:
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description:
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- This option provides the path ending with directory name in which the backup
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configuration file will be stored. If the directory does not exist it will be first
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created and the filename is either the value of C(filename) or default filename
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as described in C(filename) options description. If the path value is not given
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in that case a I(backup) directory will be created in the current working directory
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and backup configuration will be copied in C(filename) within I(backup) directory.
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type: path
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type: dict
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'''
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EXAMPLES = """
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- name: configure SNMP system name
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exos_config:
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lines: configure snmp sysName "{{ inventory_hostname }}"
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- name: configure interface settings
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exos_config:
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lines:
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- configure ports 2 description-string "Master Uplink"
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backup: yes
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- name: check the running-config against master config
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exos_config:
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diff_against: intended
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intended_config: "{{ lookup('file', 'master.cfg') }}"
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- name: check the startup-config against the running-config
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exos_config:
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diff_against: startup
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diff_ignore_lines:
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- ntp clock .*
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- name: save running to startup when modified
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exos_config:
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save_when: modified
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- name: configurable backup path
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exos_config:
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lines:
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- configure ports 2 description-string "Master Uplink"
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backup: yes
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backup_options:
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filename: backup.cfg
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dir_path: /home/user
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"""
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RETURN = """
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updates:
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description: The set of commands that will be pushed to the remote device
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returned: always
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type: list
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sample: ['switch-attributes hostname foo', 'router ospf', 'area 0']
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commands:
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description: The set of commands that will be pushed to the remote device
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returned: always
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type: list
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sample: ['create vlan "foo"', 'configure snmp sysName "x620-red"']
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backup_path:
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description: The full path to the backup file
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returned: when backup is yes
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type: str
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sample: /playbooks/ansible/backup/x870_config.2018-08-08@15:00:21
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"""
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import re
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from ansible_collections.community.general.plugins.module_utils.network.exos.exos import run_commands, get_config, load_config, get_diff
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from ansible.module_utils.basic import AnsibleModule
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from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.config import NetworkConfig, dumps
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from ansible.module_utils._text import to_text
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from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import to_list
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__metaclass__ = type
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def get_running_config(module, current_config=None, flags=None):
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contents = module.params['running_config']
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if not contents:
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if current_config:
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contents = current_config.config_text
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else:
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contents = get_config(module, flags=flags)
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return contents
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def get_startup_config(module, flags=None):
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reply = run_commands(module, {'command': 'show switch', 'output': 'text'})
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match = re.search(r'Config Selected: +(\S+)\.cfg', to_text(reply, errors='surrogate_or_strict').strip(), re.MULTILINE)
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if match:
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cfgname = match.group(1).strip()
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command = ' '.join(['debug cfgmgr show configuration file', cfgname])
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if flags:
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command += ' '.join(to_list(flags)).strip()
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reply = run_commands(module, {'command': command, 'output': 'text'})
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data = reply[0]
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else:
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data = ''
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return data
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def get_candidate(module):
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candidate = NetworkConfig(indent=1)
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if module.params['src']:
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candidate.load(module.params['src'])
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elif module.params['lines']:
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candidate.add(module.params['lines'])
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candidate = dumps(candidate, 'raw')
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return candidate
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def save_config(module, result):
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result['changed'] = True
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if not module.check_mode:
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command = {"command": "save configuration",
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"prompt": "Do you want to save configuration", "answer": "y"}
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run_commands(module, command)
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else:
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module.warn('Skipping command `save configuration` '
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'due to check_mode. Configuration not copied to '
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'non-volatile storage')
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def main():
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""" main entry point for module execution
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"""
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backup_spec = dict(
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filename=dict(),
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dir_path=dict(type='path')
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)
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argument_spec = dict(
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src=dict(type='path'),
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lines=dict(aliases=['commands'], type='list'),
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before=dict(type='list'),
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after=dict(type='list'),
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match=dict(default='line', choices=['line', 'strict', 'exact', 'none']),
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replace=dict(default='line', choices=['line', 'block']),
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running_config=dict(aliases=['config']),
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intended_config=dict(),
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defaults=dict(type='bool', default=False),
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backup=dict(type='bool', default=False),
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backup_options=dict(type='dict', options=backup_spec),
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save_when=dict(choices=['always', 'never', 'modified', 'changed'], default='never'),
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diff_against=dict(choices=['startup', 'intended', 'running'], default='running'),
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diff_ignore_lines=dict(type='list'),
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)
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mutually_exclusive = [('lines', 'src')]
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required_if = [('match', 'strict', ['lines']),
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('match', 'exact', ['lines']),
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('replace', 'block', ['lines']),
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('diff_against', 'intended', ['intended_config'])]
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module = AnsibleModule(argument_spec=argument_spec,
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mutually_exclusive=mutually_exclusive,
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required_if=required_if,
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supports_check_mode=True)
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result = {'changed': False}
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warnings = list()
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if warnings:
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result['warnings'] = warnings
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config = None
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flags = ['detail'] if module.params['defaults'] else []
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diff_ignore_lines = module.params['diff_ignore_lines']
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if module.params['backup'] or (module._diff and module.params['diff_against'] == 'running'):
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contents = get_config(module, flags=flags)
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config = NetworkConfig(indent=1, contents=contents)
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if module.params['backup']:
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result['__backup__'] = contents
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if any((module.params['lines'], module.params['src'])):
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match = module.params['match']
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replace = module.params['replace']
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candidate = get_candidate(module)
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running = get_running_config(module, config)
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try:
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response = get_diff(module, candidate=candidate, running=running, diff_match=match, diff_ignore_lines=diff_ignore_lines, diff_replace=replace)
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except ConnectionError as exc:
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module.fail_json(msg=to_text(exc, errors='surrogate_then_replace'))
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config_diff = response.get('config_diff')
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if config_diff:
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commands = config_diff.split('\n')
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if module.params['before']:
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commands[:0] = module.params['before']
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if module.params['after']:
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commands.extend(module.params['after'])
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result['commands'] = commands
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result['updates'] = commands
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# send the configuration commands to the device and merge
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# them with the current running config
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if not module.check_mode:
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if commands:
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load_config(module, commands)
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result['changed'] = True
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running_config = None
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startup_config = None
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if module.params['save_when'] == 'always':
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save_config(module, result)
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elif module.params['save_when'] == 'modified':
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running = get_running_config(module)
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startup = get_startup_config(module)
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running_config = NetworkConfig(indent=1, contents=running, ignore_lines=diff_ignore_lines)
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startup_config = NetworkConfig(indent=1, contents=startup, ignore_lines=diff_ignore_lines)
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if running_config.sha1 != startup_config.sha1:
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save_config(module, result)
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elif module.params['save_when'] == 'changed' and result['changed']:
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save_config(module, result)
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if module._diff:
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if not running_config:
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contents = get_running_config(module)
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else:
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contents = running_config.config_text
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# recreate the object in order to process diff_ignore_lines
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running_config = NetworkConfig(indent=1, contents=contents, ignore_lines=diff_ignore_lines)
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if module.params['diff_against'] == 'running':
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if module.check_mode:
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module.warn("unable to perform diff against running-config due to check mode")
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contents = None
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else:
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contents = config.config_text
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elif module.params['diff_against'] == 'startup':
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if not startup_config:
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contents = get_startup_config(module)
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else:
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contents = startup_config.config_text
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elif module.params['diff_against'] == 'intended':
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contents = module.params['intended_config']
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if contents is not None:
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base_config = NetworkConfig(indent=1, contents=contents, ignore_lines=diff_ignore_lines)
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if running_config.sha1 != base_config.sha1:
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if module.params['diff_against'] == 'intended':
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before = running_config
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after = base_config
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elif module.params['diff_against'] in ('startup', 'running'):
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before = base_config
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after = running_config
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result.update({
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'changed': True,
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'diff': {'before': str(before), 'after': str(after)}
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})
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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