Parse cli output or text using a variety of parsers
Version added: 1.0.0
- Parse cli output or text using a variety of parsers
Note
- 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
# 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_outputCommon return values are documented here, the following are the fields unique to this module:
- Bradley Thornton (@cidrblock)