ansible.utils/plugins/modules/cli_parse.py

283 lines
8.0 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright 2020 Red Hat
# GNU General Public License v3.0+
# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = """
module: cli_parse
author: Bradley Thornton (@cidrblock)
short_description: Parse cli output or text using a variety of parsers
description:
- Parse cli output or text using a variety of parsers
version_added: 1.0.0
options:
command:
type: str
description:
- The command to run on the host
text:
type: str
description:
- Text to be parsed
parser:
type: dict
description:
- Parser specific parameters
required: True
suboptions:
name:
type: str
description:
- The name of the parser to use
required: True
command:
type: str
description:
- The command used to locate the parser's template
os:
type: str
description:
- Provide an operating system value to the parser
- For `ntc_templates` parser, this should be in the supported
`<vendor>_<os>` format.
template_path:
type: str
description:
- Path of the parser template on the Ansible controller
- This can be a relative or an absolute path
vars:
type: dict
description:
- Additional parser specific parameters
- See the cli_parse user guide for examples of parser specific variables
- U(https://docs.ansible.com/ansible/latest/network/user_guide/cli_parsing.html)
set_fact:
description:
- Set the resulting parsed data as a fact
type: str
notes:
- The default search path for a parser template is templates/{{ short_os }}_{{ command }}.{{ extension }}
- => short_os derived from ansible_network_os or ansible_distribution and set to lower case
- => command is the command passed to the module with spaces replaced with _
- => extension is specific to the parser used (native=yaml, textfsm=textfsm, ttp=ttp)
- The default Ansible search path for the templates directory is used for parser templates as well
- Some parsers may have additional configuration options available. See the parsers/vars key and the parser's documentation
- Some parsers require third-party python libraries be installed on the Ansible control node and a specific python version
- example Pyats requires pyats and genie and requires Python 3
- example ntc_templates requires ntc_templates
- example textfsm requires textfsm
- example ttp requires ttp
- example xml requires xml_to_dict
- Support of 3rd party python libraries is limited to the use of their public APIs as documented
- "Additional information and examples can be found in the parsing user guide:"
- https://docs.ansible.com/ansible/latest/network/user_guide/cli_parsing.html
"""
EXAMPLES = r"""
# Using the native parser
# -------------
# templates/nxos_show_interface.yaml
# - example: Ethernet1/1 is up
# getval: '(?P<name>\S+) is (?P<oper_state>\S+)'
# result:
# "{{ name }}":
# name: "{{ name }}"
# state:
# operating: "{{ oper_state }}"
# shared: True
#
# - example: admin state is up, Dedicated Interface
# getval: 'admin state is (?P<admin_state>\S+)'
# result:
# "{{ name }}":
# name: "{{ name }}"
# state:
# admin: "{{ admin_state }}"
#
# - example: " Hardware: Ethernet, address: 0000.5E00.5301 (bia 0000.5E00.5301)"
# getval: '\s+Hardware: (?P<hardware>.*), address: (?P<mac>\S+)'
# result:
# "{{ name }}":
# hardware: "{{ hardware }}"
# mac_address: "{{ mac }}"
- name: Run command and parse with native
ansible.utils.cli_parse:
command: "show interface"
parser:
name: ansible.netcommon.native
set_fact: interfaces_fact
- name: Pass text and template_path
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.netcommon.native
template_path: "{{ role_path }}/templates/nxos_show_interface.yaml"
# Using the ntc_templates parser
# -------------
# The ntc_templates use 'vendor_platform' for the file name
# it will be derived from ansible_network_os if not provided
# example cisco.ios.ios => cisco_ios
- name: Run command and parse with ntc_templates
ansible.utils.cli_parse:
command: "show interface"
parser:
name: ansible.netcommon.ntc_templates
register: parser_output
- name: Pass text and command
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.netcommon.ntc_templates
command: show interface
register: parser_output
# Using the pyats parser
# -------------
# The pyats parser uses 'os' to locate the appropriate parser
# it will be derived from ansible_network_os if not provided
# in the case of pyats: cisco.ios.ios => iosxe
- name: Run command and parse with pyats
ansible.utils.cli_parse:
command: "show interface"
parser:
name: ansible.netcommon.pyats
register: parser_output
- name: Pass text and command
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.netcommon.pyats
command: show interface
register: parser_output
- name: Provide an OS to pyats to use an ios parser
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.netcommon.pyats
command: show interface
os: ios
register: parser_output
# Using the textfsm parser
# -------------
# templates/nxos_show_version.textfsm
#
# Value UPTIME ((\d+\s\w+.s.,?\s?){4})
# Value LAST_REBOOT_REASON (.+)
# Value OS (\d+.\d+(.+)?)
# Value BOOT_IMAGE (.*)
# Value PLATFORM (\w+)
#
# Start
# ^\s+(NXOS: version|system:\s+version)\s+${OS}\s*$$
# ^\s+(NXOS|kickstart)\s+image\s+file\s+is:\s+${BOOT_IMAGE}\s*$$
# ^\s+cisco\s+${PLATFORM}\s+[cC]hassis
# ^\s+cisco\s+Nexus\d+\s+${PLATFORM}
# # Cisco N5K platform
# ^\s+cisco\s+Nexus\s+${PLATFORM}\s+[cC]hassis
# ^\s+cisco\s+.+-${PLATFORM}\s*
# ^Kernel\s+uptime\s+is\s+${UPTIME}
# ^\s+Reason:\s${LAST_REBOOT_REASON} -> Record
- name: Run command and parse with textfsm
ansible.utils.cli_parse:
command: "show version"
parser:
name: ansible.utils.textfsm
register: parser_output
- name: Pass text and command
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.utils.textfsm
command: show version
register: parser_output
# Using the ttp parser
# -------------
# templates/nxos_show_interface.ttp
#
# {{ interface }} is {{ state }}
# admin state is {{ admin_state }}{{ ignore(".*") }}
- name: Run command and parse with ttp
ansible.utils.cli_parse:
command: "show interface"
parser:
name: ansible.utils.ttp
set_fact: new_fact_key
- name: Pass text and template_path
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.utils.ttp
template_path: "{{ role_path }}/templates/nxos_show_interface.ttp"
register: parser_output
# Using the XML parser
# -------------
- name: Run command and parse with xml
ansible.utils.cli_parse:
command: "show interface | xml"
parser:
name: ansible.utils.xml
register: parser_output
- name: Pass text and parse with xml
ansible.utils.cli_parse:
text: "{{ previous_command['stdout'] }}"
parser:
name: ansible.utils.xml
register: parser_output
"""
RETURN = r"""
parsed:
description: The structured data resulting from the parsing of the text
returned: always
type: dict
sample:
stdout:
description: The output from the command run
returned: when provided a command
type: str
sample:
stdout_lines:
description: The output of the command run split into lines
returned: when provided a command
type: list
elements: str
sample:
"""