arista.eos.eos_command – Run arbitrary commands on an Arista EOS device

arista.eos.eos_command – Run arbitrary commands on an Arista EOS device

Note

This plugin is part of the arista.eos collection (version 1.3.0).

To install it use: ansible-galaxy collection install arista.eos.

To use it in a playbook, specify: arista.eos.eos_command.

New in version 1.0.0: of arista.eos

• Synopsis
• Parameters
• Notes
• Examples
• Return Values

Synopsis

• Sends an arbitrary set of commands to an EOS node and returns the results read from the device. This module includes an argument that will cause the module to wait for a specific condition before returning or timing out if the condition is not met.

Note

This module has a corresponding action plugin.

Parameters

Parameter		Choices/Defaults	Comments
commands list / elements=raw / required			The commands to send to the remote EOS device over the configured provider. The resulting output from the command is returned. If the wait_for argument is provided, the module is not returned until the condition is satisfied or the number of retries has been exceeded. If a command sent to the device requires answering a prompt, it is possible to pass a dict containing command, answer and prompt. Common answers are 'y' or "\r" (carriage return, must be double quotes). Refer below examples.
interval integer		Default: 1	Configures the interval in seconds to wait between retries of the command. If the command does not pass the specified conditional, the interval indicates how to long to wait before trying the command again.
match string		any all ←	The match argument is used in conjunction with the wait_for argument to specify the match policy. Valid values are all or any. If the value is set to all then all conditionals in the wait_for must be satisfied. If the value is set to any then only one of the values must be satisfied.
provider dictionary			Deprecated Starting with Ansible 2.5 we recommend using connection: network_cli. Starting with Ansible 2.6 we recommend using connection: httpapi for eAPI. This option will be removed in a release after 2022-06-01. For more information please see the EOS Platform Options guide. A dict object containing connection details.
	auth_pass string		Specifies the password to use if required to enter privileged mode on the remote device. If authorize is false, then this argument does nothing. If the value is not specified in the task, the value of environment variable ANSIBLE_NET_AUTH_PASS will be used instead.
	authorize boolean	no ← yes	Instructs the module to enter privileged mode on the remote device before sending any commands. If not specified, the device will attempt to execute all commands in non-privileged mode. If the value is not specified in the task, the value of environment variable ANSIBLE_NET_AUTHORIZE will be used instead.
	host string		Specifies the DNS host name or address for connecting to the remote device over the specified transport. The value of host is used as the destination address for the transport.
	password string		Specifies the password to use to authenticate the connection to the remote device. This is a common argument used for either cli or eapi transports. If the value is not specified in the task, the value of environment variable ANSIBLE_NET_PASSWORD will be used instead.
	port integer	Default: 0	Specifies the port to use when building the connection to the remote device. This value applies to either cli or eapi. The port value will default to the appropriate transport common port if none is provided in the task (cli=22, http=80, https=443).
	ssh_keyfile path		Specifies the SSH keyfile to use to authenticate the connection to the remote device. This argument is only used for cli transports. If the value is not specified in the task, the value of environment variable ANSIBLE_NET_SSH_KEYFILE will be used instead.
	timeout integer		Specifies the timeout in seconds for communicating with the network device for either connecting or sending commands. If the timeout is exceeded before the operation is completed, the module will error.
	transport string	cli ← eapi	Configures the transport connection to use when connecting to the remote device.
	use_proxy boolean	no yes ←	If no, the environment variables http_proxy and https_proxy will be ignored.
	use_ssl boolean	no yes ←	Configures the transport to use SSL if set to yes only when the transport=eapi. If the transport argument is not eapi, this value is ignored.
	username string		Configures the username to use to authenticate the connection to the remote device. This value is used to authenticate either the CLI login or the eAPI authentication depending on which transport is used. If the value is not specified in the task, the value of environment variable ANSIBLE_NET_USERNAME will be used instead.
	validate_certs boolean	no yes ←	If no, SSL certificates will not be validated. This should only be used on personally controlled sites using self-signed certificates. If the transport argument is not eapi, this value is ignored.
retries integer		Default: 10	Specifies the number of retries a command should be tried before it is considered failed. The command is run on the target device every retry and evaluated against the wait_for conditionals.
wait_for list / elements=string			Specifies what to evaluate from the output of the command and what conditionals to apply. This argument will cause the task to wait for a particular conditional to be true before moving forward. If the conditional is not true by the configured retries, the task fails. Note - With wait_for the value in result['stdout'] can be accessed using result, that is to access result['stdout'][0] use result[0] See examples. aliases: waitfor

Notes

Note

• Tested against EOS 4.15
• For information on using CLI, eAPI and privileged mode see the EOS Platform Options guide
• For more information on using Ansible to manage network devices see the Ansible Network Guide
• For more information on using Ansible to manage Arista EOS devices see the Arista integration page.

Examples

- name: run show version on remote devices
  arista.eos.eos_command:
    commands: show version

- name: run show version and check to see if output contains Arista
  arista.eos.eos_command:
    commands: show version
    wait_for: result[0] contains Arista

- name: run multiple commands on remote nodes
  arista.eos.eos_command:
    commands:
    - show version
    - show interfaces

- name: run multiple commands and evaluate the output
  arista.eos.eos_command:
    commands:
    - show version
    - show interfaces
    wait_for:
    - result[0] contains Arista
    - result[1] contains Loopback0

- name: run commands and specify the output format
  arista.eos.eos_command:
    commands:
    - command: show version
      output: json

- name: using cli transport, check whether the switch is in maintenance mode
  arista.eos.eos_command:
    commands: show maintenance
    wait_for: result[0] contains 'Under Maintenance'

- name: using cli transport, check whether the switch is in maintenance mode using
    json output
  arista.eos.eos_command:
    commands: show maintenance | json
    wait_for: result[0].units.System.state eq 'underMaintenance'

- name: using eapi transport check whether the switch is in maintenance, with 8 retries
    and 2 second interval between retries
  arista.eos.eos_command:
    commands: show maintenance
    wait_for: result[0]['units']['System']['state'] eq 'underMaintenance'
    interval: 2
    retries: 8
    provider:
      transport: eapi

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
failed_conditions list / elements=string	failed	The list of conditionals that have failed Sample: ['...', '...']
stdout list / elements=string	always apart from low level errors (such as action plugin)	The set of responses from the commands Sample: ['...', '...']
stdout_lines list / elements=string	always apart from low level errors (such as action plugin)	The value of stdout split into a list Sample: [['...', '...'], ['...'], ['...']]

Authors

• Peter Sprygada (@privateip)

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.11/collections/arista/eos/eos_command_module.html