arista.eos.eos_hostname module – Manages hostname resource module

Note

This module is part of the arista.eos collection (version 5.0.1).

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_hostname.

New in version 4.1.0: of arista.eos

Synopsis

  • This module configures and manages the attribute of hostname on Arista EOS platforms.

Parameters

Parameter

Comments

config

dictionary

A dictionary of hostname options

hostname

string

The system’s hostname

running_config

string

This option is used only with state parsed.

The value of this option should be the output received from the EOS device by executing the command show running-config | section hostname.

The state parsed reads the configuration from running_config option and transforms it into Ansible structured data as per the resource module’s argspec and the value is then returned in the parsed key within the result.

state

string

The state the configuration should be left in.

The states rendered, gathered and parsed does not perform any change on the device.

The state rendered will transform the configuration in config option to platform specific CLI commands which will be returned in the rendered key within the result. For state rendered active connection to remote host is not required.

The states merged, replaced and overridden have identical behaviour for this module.

The state gathered will fetch the running configuration from device and transform it into structured data in the format as per the resource module argspec and the value is returned in the gathered key within the result.

The state parsed reads the configuration from running_config option and transforms it into JSON format as per the resource module parameters and the value is returned in the parsed key within the result. The value of running_config option should be the same format as the output of command show running-config | section ^hostname executed on device. For state parsed active connection to remote host is not required.

Choices:

  • deleted

  • merged ← (default)

  • overridden

  • replaced

  • gathered

  • rendered

  • parsed

Notes

Note

  • Tested against Arista EOS 4.24.60M

  • This module works with connection network_cli. See the EOS Platform Options.

Examples

# Using state: merged
# Before state:
# -------------
# test#show running-config | section ^hostname
# hostname eos
# Merged play:
# ------------
- name: Apply the provided configuration
  arista.eos.eos_hostname:
    config:
      hostname: eos
    state: merged
# Commands Fired:
# ---------------
# "commands": [
#         "hostname eos",
# ],
# After state:
# ------------
# test#show running-config | section ^hostname
# hostname eos


# Using state: deleted
# Before state:
# -------------
# test#show running-config | section ^hostname
# hostname eosTest
# Deleted play:
# -------------
- name: Remove all existing configuration
  arista.eos.eos_hostname:
    state: deleted
# Commands Fired:
# ---------------
# "commands": [
#     "no hostname eosTest",
# ],
# After state:
# ------------
# test#show running-config | section ^hostname
# hostname eos


# Using state: overridden
# Before state:
# -------------
# test#show running-config | section ^hostname
# hostname eos
# Overridden play:
# ----------------
- name: Override commands with provided configuration
  arista.eos.eos_hostname:
    config:
      hostname: eosTest
    state: overridden
# Commands Fired:
# ---------------
# "commands": [
#       "hostname eosTest",
#     ],
# After state:
# ------------
# test#show running-config | section ^hostname
# hostname eosTest


# Using state: replaced
# Before state:
# -------------
# test#show running-config | section ^hostname
# hostname eosTest
# Replaced play:
# --------------
- name: Replace commands with provided configuration
  arista.eos.eos_hostname:
    config:
      hostname: eosTest
    state: replaced
# Commands Fired:
# ---------------
# "commands": [],
# After state:
# ------------
# test#show running-config | section ^hostname
# hostname eosTest

# Using state: gathered
# Before state:
# -------------
#test#show running-config | section ^hostname
# hostname eosTest
# Gathered play:
# --------------
- name: Gather listed hostname config
  arista.eos.eos_hostname:
    state: gathered
# Module Execution Result:
# ------------------------
#   "gathered": {
#      "hostname": "eosTest"
#     },

# Using state: rendered
# Rendered play:
# --------------
- name: Render the commands for provided configuration
  arista.eos.eos_hostname:
    config:
      hostname: eosTest
    state: rendered
# Module Execution Result:
# ------------------------
# "rendered": [
#     "hostname eosTest",
# ]

# Using state: parsed
# File: parsed.cfg
# ----------------
# hostname eosTest
# Parsed play:
# ------------
- name: Parse the provided configuration with the existing running configuration
  arista.eos.eos_hostname:
    running_config: "{{ lookup('file', 'parsed.cfg') }}"
    state: parsed
# Module Execution Result:
# ------------------------
#  "parsed": {
#     "hostname": "eosTest"
# }

Return Values

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

Key

Description

after

dictionary

The resulting configuration after module execution.

Returned: when changed

Sample: “This output will always be in the same format as the module argspec.\n”

before

dictionary

The configuration prior to the module execution.

Returned: when state is merged, replaced, overridden, deleted or purged

Sample: “This output will always be in the same format as the module argspec.\n”

commands

list / elements=string

The set of commands pushed to the remote device.

Returned: when state is merged, replaced, overridden, deleted or purged

Sample: [“hostname eost_test”]

gathered

list / elements=string

Facts about the network resource gathered from the remote device as structured data.

Returned: when state is gathered

Sample: “This output will always be in the same format as the module argspec.\n”

parsed

list / elements=string

The device native config provided in running_config option parsed into structured data as per module argspec.

Returned: when state is parsed

Sample: “This output will always be in the same format as the module argspec.\n”

rendered

list / elements=string

The provided configuration in the task rendered in device-native format (offline).

Returned: when state is rendered

Sample: [“hostname eost_test”]

Authors

  • Gomathi Selvi Srinivasan (@GomathiselviS)