ansible.utils.update_fact module – Update currently set facts
Note
This module is part of the ansible.utils 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 ansible.utils.
To use it in a playbook, specify: ansible.utils.update_fact.
New in ansible.utils 1.0.0
Synopsis
This module allows updating existing variables.
Variables are updated on a host-by-host basis.
Variables are not modified in place, instead they are returned by the module.
Note
This module has a corresponding action plugin.
Parameters
Parameter |
Comments |
|---|---|
A list of dictionaries, each a desired update to make. |
|
The path in a currently set variable to update. The path can be in dot or bracket notation. It should be a valid jinja reference. |
|
The value to be set at the path. Can be a simple or complex data structure. |
Examples
# Update an existing fact, dot or bracket notation
- name: Set a fact
ansible.builtin.set_fact:
a:
b:
c:
- 1
- 2
- name: Update the fact
ansible.utils.update_fact:
updates:
- path: a.b.c.0
value: 10
- path: "a['b']['c'][1]"
value: 20
register: updated
- debug:
var: updated.a
# updated:
# a:
# b:
# c:
# - 10
# - 20
# changed: true
# Lists can be appended, new keys added to dictionaries
- name: Set a fact
ansible.builtin.set_fact:
a:
b:
b1:
- 1
- 2
- name: Update, add to list, add new key
ansible.utils.update_fact:
updates:
- path: a.b.b1.2
value: 3
- path: a.b.b2
value:
- 10
- 20
- 30
register: updated
- debug:
var: updated.a
# updated:
# a:
# b:
# b1:
# - 1
# - 2
# - 3
# b2:
# - 10
# - 20
# - 30
# changed: true
#####################################################################
# Update every item in a list of dictionaries
# build the update list ahead of time using a loop
# and then apply the changes to the fact
#####################################################################
- name: Set fact
ansible.builtin.set_fact:
addresses:
- raw: 10.1.1.0/255.255.255.0
name: servers
- raw: 192.168.1.0/255.255.255.0
name: printers
- raw: 8.8.8.8
name: dns
- name: Build a list of updates
ansible.builtin.set_fact:
update_list: "{{ update_list + update }}"
loop: "{{ addresses }}"
loop_control:
index_var: idx
vars:
update_list: []
update:
- path: addresses[{{ idx }}].network
value: "{{ item['raw'] | ansible.netcommon.ipaddr('network') }}"
- path: addresses[{{ idx }}].prefix
value: "{{ item['raw'] | ansible.netcommon.ipaddr('prefix') }}"
- debug:
var: update_list
# TASK [debug] *******************
# ok: [localhost] =>
# update_list:
# - path: addresses[0].network
# value: 10.1.1.0
# - path: addresses[0].prefix
# value: '24'
# - path: addresses[1].network
# value: 192.168.1.0
# - path: addresses[1].prefix
# value: '24'
# - path: addresses[2].network
# value: 8.8.8.8
# - path: addresses[2].prefix
# value: '32'
- name: Make the updates
ansible.utils.update_fact:
updates: "{{ update_list }}"
register: updated
- debug:
var: updated
# TASK [debug] ***********************
# ok: [localhost] =>
# updated:
# addresses:
# - name: servers
# network: 10.1.1.0
# prefix: '24'
# raw: 10.1.1.0/255.255.255.0
# - name: printers
# network: 192.168.1.0
# prefix: '24'
# raw: 192.168.1.0/255.255.255.0
# - name: dns
# network: 8.8.8.8
# prefix: '32'
# raw: 8.8.8.8
# changed: true
# failed: false
#####################################################################
# Retrieve, update, and apply interface description change
# use index_of to locate Etherent1/1
#####################################################################
- name: Get the current interface config
cisco.nxos.nxos_interfaces:
state: gathered
register: interfaces
- name: Update the description of Ethernet1/1
ansible.utils.update_fact:
updates:
- path: "interfaces.gathered[{{ index }}].description"
value: "Configured by ansible"
vars:
index: "{{ interfaces.gathered|ansible.utils.index_of('eq', 'Ethernet1/1', 'name') }}"
register: updated
- name: Update the configuration
cisco.nxos.nxos_interfaces:
config: "{{ updated.interfaces.gathered }}"
state: overridden
register: result
- name: Show the commands issued
debug:
msg: "{{ result['commands'] }}"
# TASK [Show the commands issued] *************************************
# ok: [nxos101] => {
# "msg": [
# "interface Ethernet1/1",
# "description Configured by ansible"
# ]
# }
#####################################################################
# Retrieve, update, and apply an ipv4 ACL change
# finding the index of AFI ipv4 acls
# finding the index of the ACL named 'test1'
# finding the index of sequence 10
#####################################################################
- name: Retrieve the current acls
arista.eos.eos_acls:
state: gathered
register: current
- name: Update the source of sequence 10 in the IPv4 ACL named test1
ansible.utils.update_fact:
updates:
- path: current.gathered[{{ afi }}].acls[{{ acl }}].aces[{{ ace }}].source
value:
subnet_address: "192.168.2.0/24"
vars:
afi: "{{ current.gathered|ansible.utils.index_of('eq', 'ipv4', 'afi') }}"
acl: "{{ current.gathered[afi|int].acls|ansible.utils.index_of('eq', 'test1', 'name') }}"
ace: "{{ current.gathered[afi|int].acls[acl|int].aces|ansible.utils.index_of('eq', 10, 'sequence') }}"
register: updated
- name: Apply the changes
arista.eos.eos_acls:
config: "{{ updated.current.gathered }}"
state: overridden
register: changes
- name: Show the commands issued
debug:
msg: "{{ changes['commands'] }}"
# TASK [Show the commands issued] *************************************
# ok: [eos101] => {
# "msg": [
# "ip access-list test1",
# "no 10",
# "10 permit ip 192.168.2.0/24 host 10.1.1.2"
# ]
# }
#####################################################################
# Disable ip redirects on any layer3 interface
# find the layer 3 interfaces
# use each name to find their index in l3 interface
# build an 'update' list and apply the updates
#####################################################################
- name: Get the current interface and L3 interface configuration
cisco.nxos.nxos_facts:
gather_subset: min
gather_network_resources:
- interfaces
- l3_interfaces
- name: Build the list of updates to make
ansible.builtin.set_fact:
updates: "{{ updates + [entry] }}"
vars:
updates: []
entry:
path: "ansible_network_resources.l3_interfaces[{{ item }}].redirects"
value: false
w_mode: "{{ ansible_network_resources.interfaces|selectattr('mode', 'defined') }}"
m_l3: "{{ w_mode|selectattr('mode', 'eq', 'layer3') }}"
names: "{{ m_l3|map(attribute='name')|list }}"
l3_indicies: "{{ ansible_network_resources.l3_interfaces|ansible.utils.index_of('in', names, 'name', wantlist=True) }}"
loop: "{{ l3_indicies }}"
# TASK [Build the list of updates to make] ****************************
# ok: [nxos101] => (item=99) => changed=false
# ansible_facts:
# updates:
# - path: ansible_network_resources.l3_interfaces[99].redirects
# value: false
# ansible_loop_var: item
# item: 99
- name: Update the l3 interfaces
ansible.utils.update_fact:
updates: "{{ updates }}"
register: updated
# TASK [Update the l3 interfaces] *************************************
# changed: [nxos101] => changed=true
# ansible_network_resources:
# l3_interfaces:
# <...>
# - ipv4:
# - address: 10.1.1.1/24
# name: Ethernet1/100
# redirects: false
- name: Apply the configuration changes
cisco.nxos.l3_interfaces:
config: "{{ updated.ansible_network_resources.l3_interfaces }}"
state: overridden
register: changes
# TASK [Apply the configuration changes] ******************************
# changed: [nxos101] => changed=true
# commands:
# - interface Ethernet1/100
# - no ip redirects