junipernetworks.junos.junos_hostname module – Manage Hostname server configuration on Junos devices.

Note

This module is part of the junipernetworks.junos collection (version 4.1.0).

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 junipernetworks.junos. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: junipernetworks.junos.junos_hostname.

New in junipernetworks.junos 2.9.0

Synopsis

  • This module manages hostname configuration on devices running Junos.

Note

This module has a corresponding action plugin.

Requirements

The below requirements are needed on the host that executes this module.

  • ncclient (>=v0.6.4)

  • xmltodict (>=0.12.0)

Parameters

Parameter

Comments

config

dictionary

A dictionary of system Hostname configuration.

hostname

string

Specify the hostname.

running_config

string

This option is used only with state parsed.

The value of this option should be the output received from the Junos device by executing the command show system 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 system hostname executed on device. For state parsed active connection to remote host is not required.

Choices:

  • "merged" ← (default)

  • "replaced"

  • "deleted"

  • "overridden"

  • "parsed"

  • "gathered"

  • "rendered"

Notes

Note

  • This module requires the netconf system service be enabled on the device being managed.

  • This module works with connection netconf.

  • See the Junos OS Platform Options.

  • Tested against JunOS v18.4R1

Examples

# Using merged
#
# Before state
# ------------
#
# vagrant@vsrx# show system hostname
#
# [edit]
- name: Merge provided HOSTNAME configuration into running configuration.
  junipernetworks.junos.junos_hostname:
    config:
      hostname: 'vsrx-18.4R1'
    state: merged
#
# -------------------------
# Module Execution Result
# -------------------------
#     "after": {
#         "hostname": "vsrx-18.4R1"
#     },
#     "before": {},
#     "changed": true,
#     "commands": [
#           "<nc:system xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
#           "<nc:host-name>vsrx-18.4R1</nc:host-name></nc:system>"
#     ]
# After state
# -----------
#
# [email protected]# show system host-name
# host-name vsrx-18.4R1;
#
# Using replaced
#
# Before state
# ------------
#
# [email protected]# show system host-name
# host-name vsrx-18.4R1;
#
# [edit]
- name: Replaced target config with provided config.
  junipernetworks.junos.junos_hostname:
    config:
      hostname: 'vsrx-12'
    state: replaced
#
# -------------------------
# Module Execution Result
# -------------------------
#     "after": {
#         "hostname": "vsrx-12"
#     },
#     "before": {
#         "hostname": "vsrx-18.4R1"
#     },
#     "changed": true,
#     "commands": [
#           "<nc:system xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
#           "<nc:host-name>vsrx-12</nc:host-name></nc:system>"
#     ]
# After state
# -----------
#
# [email protected]# show system host-name
# host-name vsrx-12;
#
# Using overridden
#
# Before state
# ------------
#
# [email protected]# show system host-name
# host-name vsrx-18.4R1;
#
# [edit]
- name: Replaced target config with provided config.
  junipernetworks.junos.junos_hostname:
    config:
      hostname: 'vsrx-12'
    state: overridden
#
# -------------------------
# Module Execution Result
# -------------------------
#     "after": {
#         "hostname": "vsrx-12"
#     },
#     "before": {
#         "hostname": "vsrx-18.4R1"
#     },
#     "changed": true,
#     "commands": [
#           "<nc:system xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
#           "<nc:host-name>vsrx-12</nc:host-name></nc:system>"
#     ]
# After state
# -----------
#
# [email protected]# show system host-name
# host-name vsrx-12;
#
# Using deleted
#
# Before state
# ------------
#
# [email protected]# show system host-name
# host-name vsrx-12;
#
- name: Delete running HOSTNAME global configuration
  junipernetworks.junos.junos_hostname:
    config:
    state: deleted
#
# -------------------------
# Module Execution Result
# -------------------------
#     "after": {},
#     "before": {
#         "hostname": "vsrx-12"
#     },
#     "changed": true,
#     "commands": [
#               "<nc:system xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
#                <nc:host-name delete="delete"/></nc:system>"
#     ]
# After state
# -----------
#
# vagrant@vsrx# show system ntp
#
# [edit]
# Using gathered
#
# Before state
# ------------
#
# [email protected]# show system host-name
# host-name vsrx-12;
#
- name: Gather running HOSTNAME global configuration
  junipernetworks.junos.junos_hostname:
    state: gathered
#
# -------------------------
# Module Execution Result
# -------------------------
#     "gathered": {
#         "hostname": "vsrx-12",
#     },
#     "changed": false,
# Using rendered
#
# Before state
# ------------
#
- name: Render xml for provided facts.
  junipernetworks.junos.junos_hostname:
    config:
      boot_server: '78.46.194.186'
    state: rendered
#
# -------------------------
# Module Execution Result
# -------------------------
#     "rendered": [
#           "<nc:system xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">"
#           "<nc:host-name>78.46.194.186</nc:host-name></nc:system>"
#     ]
#
# Using parsed
# parsed.cfg
# ------------
# <?xml version="1.0" encoding="UTF-8"?>
# <rpc-reply message-id="urn:uuid:0cadb4e8-5bba-47f4-986e-72906227007f">
#     <configuration changed-seconds="1590139550" changed-localtime="2020-05-22 09:25:50 UTC">
#         <version>18.4R1-S2.4</version>
#         <system xmlns="http://yang.juniper.net/junos-es/conf/system">
#            <host-name>vsrx-18.4R1</host-name>
#         </system>
#     </configuration>
# </rpc-reply>
#
- name: Parse HOSTNAME running config
  junipernetworks.junos.junos_hostname:
    running_config: "{{ lookup('file', './parsed.cfg') }}"
    state: parsed
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
#
# "parsed":  {
#         "hostname": "vsrx-18.4R1"
#     }
#

Return Values

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

Key

Description

after

dictionary

The resulting configuration model invocation.

Returned: when changed

Sample: "The configuration returned will always be in the same format\n of the parameters above.\n"

before

dictionary

The configuration prior to the model invocation.

Returned: always

Sample: "The configuration returned will always be in the same format\n of the parameters above.\n"

commands

list / elements=string

The set of commands pushed to the remote device.

Returned: always

Sample: ["\"<nc:host-name>78.46.194.186</nc:host-name></nc:system>\""]

Authors

  • Rohit Thakur (@rohitthakur2590)