arista.eos.eos_command – Run arbitrary commands on an Arista EOS device
Note
This plugin is part of the arista.eos collection (version 2.2.0).
You might already have this collection installed if you are using the ansible
package.
It is not included in ansible-core
.
To check whether it is installed, run ansible-galaxy collection list
.
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
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 |
Comments |
---|---|
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. |
|
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. Default: 1 |
|
The match argument is used in conjunction with the wait_for argument to specify the match policy. Valid values are Choices:
|
|
Deprecated Starting with Ansible 2.5 we recommend using Starting with Ansible 2.6 we recommend using 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. |
|
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 |
|
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 Choices:
|
|
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. |
|
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 |
|
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). Default: 0 |
|
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 |
|
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. |
|
Configures the transport connection to use when connecting to the remote device. Choices:
|
|
If Choices:
|
|
Configures the transport to use SSL if set to Choices:
|
|
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 |
|
If Choices:
|
|
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. Default: 10 |
|
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 |
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 |
Description |
---|---|
The list of conditionals that have failed Returned: failed Sample: [“…”, “…”] |
|
The set of responses from the commands Returned: always apart from low level errors (such as action plugin) Sample: [“…”, “…”] |
|
The value of stdout split into a list Returned: always apart from low level errors (such as action plugin) Sample: [[“…”, “…”], [“…”], [“…”]] |
Authors
Peter Sprygada (@privateip)