arista.eos.eos_config module – Manage Arista EOS configuration sections

Note

This module is part of the arista.eos collection (version 3.1.0).

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_config.

New in version 1.0.0: of arista.eos

Synopsis

  • Arista EOS configurations use a simple block indent file syntax for segmenting configuration into sections. This module provides an implementation for working with EOS configuration sections in a deterministic way. This module works with either CLI or eAPI transports.

Note

This module has a corresponding action plugin.

Parameters

Parameter

Comments

after

list / elements=string

The ordered set of commands to append to the end of the command stack if a change needs to be made. Just like with before this allows the playbook designer to append a set of commands to be executed after the command set.

backup

boolean

This argument will cause the module to create a full backup of the current running-config from the remote device before any changes are made. If the backup_options value is not given, the backup file is written to the backup folder in the playbook root directory or role root directory, if playbook is part of an ansible role. If the directory does not exist, it is created.

Choices:

  • no ← (default)

  • yes

backup_options

dictionary

This is a dict object containing configurable options related to backup file path. The value of this option is read only when backup is set to yes, if backup is set to no this option will be silently ignored.

dir_path

path

This option provides the path ending with directory name in which the backup configuration file will be stored. If the directory does not exist it will be first created and the filename is either the value of filename or default filename as described in filename options description. If the path value is not given in that case a backup directory will be created in the current working directory and backup configuration will be copied in filename within backup directory.

filename

string

The filename to be used to store the backup configuration. If the filename is not given it will be generated based on the hostname, current time and date in format defined by <hostname>_config.<current-date>@<current-time>

before

list / elements=string

The ordered set of commands to push on to the command stack if a change needs to be made. This allows the playbook designer the opportunity to perform configuration commands prior to pushing any changes without affecting how the set of commands are matched against the system.

defaults

boolean

The defaults argument will influence how the running-config is collected from the device. When the value is set to true, the command used to collect the running-config is append with the all keyword. When the value is set to false, the command is issued without the all keyword

Choices:

  • no ← (default)

  • yes

diff_against

string

When using the ansible-playbook --diff command line argument the module can generate diffs against different sources.

When this option is configure as startup, the module will return the diff of the running-config against the startup-config.

When this option is configured as intended, the module will return the diff of the running-config against the configuration provided in the intended_config argument.

When this option is configured as running, the module will return the before and after diff of the running-config with respect to any changes made to the device configuration.

When this option is configured as session, the diff returned will be based on the configuration session.

Choices:

  • startup

  • running

  • intended

  • session ← (default)

diff_ignore_lines

list / elements=string

Use this argument to specify one or more lines that should be ignored during the diff. This is used for lines in the configuration that are automatically updated by the system. This argument takes a list of regular expressions or exact line matches.

intended_config

string

The intended_config provides the master configuration that the node should conform to and is used to check the final running-config against. This argument will not modify any settings on the remote device and is strictly used to check the compliance of the current device’s configuration against. When specifying this argument, the task should also modify the diff_against value and set it to intended. The configuration lines for this value should be similar to how it will appear if present in the running-configuration of the device including the indentation to ensure correct diff.

lines

aliases: commands

list / elements=string

The ordered set of commands that should be configured in the section. The commands must be the exact same commands as found in the device running-config as found in the device running-config to ensure idempotency and correct diff. Be sure to note the configuration command syntax as some commands are automatically modified by the device config parser.

match

string

Instructs the module on the way to perform the matching of the set of commands against the current device config. If match is set to line, commands are matched line by line. If match is set to strict, command lines are matched with respect to position. If match is set to exact, command lines must be an equal match. Finally, if match is set to none, the module will not attempt to compare the source configuration with the running configuration on the remote device.

Choices:

  • line ← (default)

  • strict

  • exact

  • none

parents

list / elements=string

The ordered set of parents that uniquely identify the section or hierarchy the commands should be checked against. If the parents argument is omitted, the commands are checked against the set of top level or global commands.

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

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.

Choices:

  • no ← (default)

  • yes

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

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

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

Configures the transport connection to use when connecting to the remote device.

Choices:

  • cli ← (default)

  • eapi

use_proxy

boolean

If no, the environment variables http_proxy and https_proxy will be ignored.

Choices:

  • no

  • yes ← (default)

use_ssl

boolean

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.

Choices:

  • no

  • yes ← (default)

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

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.

Choices:

  • no

  • yes ← (default)

replace

string

Instructs the module on the way to perform the configuration on the device. If the replace argument is set to line then the modified lines are pushed to the device in configuration mode. If the replace argument is set to block then the entire command block is pushed to the device in configuration mode if any line is not correct.

Choices:

  • line ← (default)

  • block

  • config

running_config

aliases: config

string

The module, by default, will connect to the remote device and retrieve the current running-config to use as a base for comparing against the contents of source. There are times when it is not desirable to have the task get the current running-config for every task in a playbook. The running_config argument allows the implementer to pass in the configuration to use as the base config for this module. The configuration lines for this option should be similar to how it will appear if present in the running-configuration of the device including the indentation to ensure idempotency and correct diff.

save_when

string

When changes are made to the device running-configuration, the changes are not copied to non-volatile storage by default. Using this argument will change that before. If the argument is set to always, then the running-config will always be copied to the startup-config and the modified flag will always be set to True. If the argument is set to modified, then the running-config will only be copied to the startup-config if it has changed since the last save to startup-config. If the argument is set to never, the running-config will never be copied to the startup-config. If the argument is set to changed, then the running-config will only be copied to the startup-config if the task has made a change. changed was added in Ansible 2.5.

Choices:

  • always

  • never ← (default)

  • modified

  • changed

src

path

The src argument provides a path to the configuration file to load into the remote system. The path can either be a full system path to the configuration file if the value starts with / or relative to the root of the implemented role or playbook. This argument is mutually exclusive with the lines and parents arguments. It can be a Jinja2 template as well. The configuration lines in the source file should be similar to how it will appear if present in the running-configuration (live switch config) of the device i ncluding the indentation to ensure idempotency and correct diff. Arista EOS device config has 3 spaces indentation.

Notes

Note

  • Tested against Arista EOS 4.24.6F

  • Abbreviated commands are NOT idempotent, see Network FAQ.

  • To ensure idempotency and correct diff the configuration lines in the relevant module options should be similar to how they appear if present in the running configuration on device including the indentation.

  • 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: configure top level settings
  arista.eos.eos_config:
    lines: hostname {{ inventory_hostname }}

- name: load an acl into the device
  arista.eos.eos_config:
    lines:
    - 10 permit ip host 192.0.2.1 any log
    - 20 permit ip host 192.0.2.2 any log
    - 30 permit ip host 192.0.2.3 any log
    - 40 permit ip host 192.0.2.4 any log
    parents: ip access-list test
    before: no ip access-list test
    replace: block

- name: load configuration from file
  arista.eos.eos_config:
    src: eos.cfg

- name: render a Jinja2 template onto an Arista switch
  arista.eos.eos_config:
    backup: yes
    src: eos_template.j2

- name: diff the running config against a master config
  arista.eos.eos_config:
    diff_against: intended
    intended_config: "{{ lookup('file', 'master.cfg') }}"

- name: for idempotency, use full-form commands
  arista.eos.eos_config:
    lines:
      # - shut
    - shutdown
    # parents: int eth1
    parents: interface Ethernet1

- name: configurable backup path
  arista.eos.eos_config:
    src: eos_template.j2
    backup: yes
    backup_options:
      filename: backup.cfg
      dir_path: /home/user

Return Values

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

Key

Description

backup_path

string

The full path to the backup file

Returned: when backup is yes

Sample: “/playbooks/ansible/backup/eos_config.2016-07-16@22:28:34”

commands

list / elements=string

The set of commands that will be pushed to the remote device

Returned: always

Sample: [“hostname switch01”, “interface Ethernet1”, “no shutdown”]

date

string

The date extracted from the backup file name

Returned: when backup is yes

Sample: “2016-07-16”

filename

string

The name of the backup file

Returned: when backup is yes and filename is not specified in backup options

Sample: “eos_config.2016-07-16@22:28:34”

shortname

string

The full path to the backup file excluding the timestamp

Returned: when backup is yes and filename is not specified in backup options

Sample: “/playbooks/ansible/backup/eos_config”

time

string

The time extracted from the backup file name

Returned: when backup is yes

Sample: “22:28:34”

updates

list / elements=string

The set of commands that will be pushed to the remote device

Returned: always

Sample: [“hostname switch01”, “interface Ethernet1”, “no shutdown”]

Authors

  • Peter Sprygada (@privateip)