Loop over multiple JSON arrays to filter the relevant JSON object based on a key value in Ansible - json

Question

I am trying to loop over 2 different JSON array and filter only if the 2 key values are same.
I am comparing cidr from po-orig.json/po file and subnet from pocooling json. If the key values are same in both file, then print the pertaining details of pocooling json file as a list.
- name: Combine GP MGMT
vars:
pocidr: >-
{{
po
| json_query('ansible_facts.policyobject[].json[]')
}}
poname: >-
{{
pocidr
| selectattr('cidr', '==', item.subnet)
| map(attribute='name')
| list
}}
set_fact:
result: >-
{{
result | default([])
+
[poname]
}}
with_items: "{{ pocooling }}"
Updated code
- name: Compare the Current & Actual GP policy
set_fact:
pocidr: "{{ po | json_query(\"ansible_facts.policyobject[].json[]\") }}"
- name: Combine GP MGMT
vars:
poname:
"{{
pocidr
| selectattr('cidr', '==', item.subnet)
| map(attribute='name')
| first
}}"
set_fact:
result:
"{{
result | default([])
+
[poname]
}}"
with_items: "{{ pocooling }}"
pocooling.json
[
{
"applianceIp": "10.10.10.10",
"dhcpBootOptionsEnabled": false,
"dhcpHandling": "Run a DHCP server",
"dhcpLeaseTime": "1 day",
"dhcpOptions": [],
"dnsNameservers": "upstream_dns",
"fixedIpAssignments": {},
"id": 2222,
"name": "Cooling",
"networkId": "78984654989",
"reservedIpRanges": [],
"subnet": "10.10.10.0/28"
},
{
"applianceIp": "10.10.10.10",
"dhcpBootOptionsEnabled": false,
"dhcpHandling": "Run a DHCP server",
"dhcpLeaseTime": "1 day",
"dhcpOptions": [],
"dnsNameservers": "upstream_dns",
"fixedIpAssignments": {},
"id": 2222,
"name": "Cooling",
"networkId": "123456789",
"reservedIpRanges": [],
"subnet": "10.11.11.0/28"
}
]
po-orig.json(po)
{
"ansible_facts":{
"policyobject":[
{
"invocation":{
"module_args":{
"status_code":[
200,
201,
202
],
"validate_certs":false
}
},
"item":{
"id":"123456",
"name":"DC"
},
"json":[
{
"category":"network",
"cidr":"10.1.1.1/28",
"createdAt":"2021-11-23T19:48:21Z",
"groupIds":[
],
"id":"545649843651365",
"name":"JM-Privat",
"networkIds":[
"545649843651365"
],
"type":"cidr",
"updatedAt":"2021-11-23T19:48:21Z"
},
{
"category":"network",
"cidr":"10.10.10.0/28",
"createdAt":"2021-12-07T13:54:05Z",
"groupIds":[
"897987654689854"
],
"id":"564678984565465",
"name":"PO-L-DE-MCC-COOLING_DMZ_LAB",
"networkIds":[
],
"type":"cidr",
"updatedAt":"2021-12-07T13:54:05Z"
}
]
}
]
}
}
Error:
fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: {{ pocidr\n | selectattr('cidr', '==', item.subnet)\n | map(attribute='name')\n | list\n}}: 'dict object' has no attribute 'cidr
Expected result
[
{
"applianceIp": "10.10.10.10",
"dhcpBootOptionsEnabled": false,
"dhcpHandling": "Run a DHCP server",
"dhcpLeaseTime": "1 day",
"dhcpOptions": [],
"dnsNameservers": "upstream_dns",
"fixedIpAssignments": {},
"id": 2222,
"name": "Cooling",
"networkId": "78984654989",
"reservedIpRanges": [],
"subnet": "10.10.10.0/28"
}
]
Complete Playbook
- name: Test
hosts: localhost
connection: local
gather_facts: false
vars:
pocooling: "{{ lookup('file', 'pocooling.json') | from_json }}"
tasks:
- include_vars:
file: po-orig.json
name: po
- name: Combine GP MGMT
vars:
poname: "{{ po|json_query('ansible_facts.policyobject[].json[]')|
selectattr('cidr', '==', item.subnet)|
map(attribute='name')|
list }}"
set_fact:
result: "{{ result|default([]) + [poname] }}"
loop: "{{ pocooling }}"

Answer 1

Given the list
pocooling:
- networkId: '78984654989'
subnet: 10.10.10.0/28
- networkId: '123456789'
subnet: 10.11.11.0/28
Select list of cidr
_cidr: "{{ ansible_facts.policyobject|json_query('[].json[].cidr') }}"
gives
_cidr:
- 10.1.1.1/28
- 10.10.10.0/28
Then select the items that fit the condition
- debug:
msg: "{{ pocooling|selectattr('subnet', 'in' , _cidr) }}"
vars:
_cidr: "{{ ansible_facts.policyobject|json_query('[].json[].cidr') }}"
gives
msg:
- networkId: '78984654989'
subnet: 10.10.10.0/28
Your code, fixed and simplified
- include_vars:
file: po-orig.json
name: po
- name: Combine GP MGMT
vars:
poname: "{{ po|json_query('ansible_facts.policyobject[].json[]')|
selectattr('cidr', '==', item.subnet)|
map(attribute='name')|
list }}"
set_fact:
result: "{{ result|default([]) + [poname] }}"
loop: "{{ pocooling }}"
gives
result:
- - PO-L-DE-MCC-COOLING_DMZ_LAB
- []