Ansible - issue with loop and json_query's - json

Question

Question
I need to get the ID from the GET because it's needed in the URL in the PUT task to edit a specific "input" entry. I'm using the Ansible URI to talk to a REST API to manage this.
playbook
*host_vars/host.yml
*
---
inputs:
- title: "test_input_api"
type: "org.graylog2.inputs.syslog.udp.SyslogUDPInput"
global: false
configuration:
allow_override_date: false
bind_address: "0.0.0.0"
expand_structured_data: false
force_rdns: false
number_worker_threads: 8
override_source: null
port: 5999
recv_buffer_size: null
store_full_message: true
- title: "test_input_api_2"
type: "org.graylog2.inputs.syslog.udp.SyslogUDPInput"
global: false
configuration:
allow_override_date: false
bind_address: "0.0.0.0"
expand_structured_data: false
force_rdns: false
number_worker_threads: 8
override_source: null
port: 5998
recv_buffer_size: null
store_full_message: true
playbook.yml
---
- name: Configure system
hosts: graylog
connection: local
gather_facts: no
roles:
- graylog/inputs
roles/graylog/inputs/tasks/main.yml
---
- include_tasks: get_inputs.yml
- include_tasks: put_inputs.yml
roles/graylog/inputs/tasks/get_inputs.yml
---
- name: "API GET System Inputs"
uri:
url: http://{{ ansible_host }}:9000/api/system/inputs
url_username : "{{ system.users.triple_admin.api_token }}"
url_password: token
method: GET
return_content: yes
register: get_graylog_inputs
- name: Set Fact
set_fact:
get_input_id: "{{ get_graylog_inputs.content | from_json | json_query('inputs[?title == `{}`] | [0].id '.format(input.title)) }}"
loop: "{{ inputs }}"
loop_control:
loop_var: input
The registered var from the get show's the following
{
"json": {
"inputs": [
{
"attributes": {
"allow_override_date": "False",
"bind_address": "0.0.0.0",
"expand_structured_data": "False",
"force_rdns": "False",
"number_worker_threads": 8,
"override_source": "",
"port": 5999,
"recv_buffer_size": "",
"store_full_message": "True"
},
"content_pack": null,
"created_at": "2021-07-30T15:21:47.590Z",
"creator_user_id": "triple_admin",
"global": false,
"id": "6104170beca15547502665d6",
"name": "Syslog UDP",
"node": "ba52ad48-0b13-419d-b957-d47d8911b413",
"static_fields": {},
"title": "test_input_api",
"type": "org.graylog2.inputs.syslog.udp.SyslogUDPInput"
},
roles/graylog/inputs/tasks/put_inputs.yml
---
- name: "API PUT System Inputs"
uri:
url: http://{{ ansible_host }}:9000/api/system/inputs/{{ get_input_id }}
url_username : "{{ system.users.triple_admin.api_token }}"
url_password: token
headers:
X-Requested-By: X-Ansible
method: PUT
body_format: json
body: "{{ lookup('template', 'templates/post_template.j2') }}"
status_code: 201
return_content: yes
loop: "{{ inputs }}"
loop_control:
loop_var: input
"ansible_facts": {
"get_input_id": "61015085eca1554750236084",
"get_input_titles": "test_input_api"
},
"ansible_facts": {
"get_input_id": "610282d0eca155475024ac91",
"get_input_titles": "test_input_api_2"
Results of running the play
loop 1 - this needs to be matched to the title and therefor get id "61015085eca1554750236084"
"title": "test_input_api",
"url": "http://192.168.21.82:9000/api/system/inputs/610282d0eca155475024ac91",
loop 2
"title": "test_input_api_2",
"url": "http://192.168.21.82:9000/api/system/inputs/610282d0eca155475024ac91",
All help is welcome !

Answer 1

(not related) You don't need to json_decode the result get_graylog_inputs.content. If the server on the over side sends the correct Content-type: application/json header, you should have a get_graylog_inputs.json entry containing the already decoded json result.
You don't need to loop twice. Remove the set_fact loop (which is not correct anyway) in your first file and use the value from your register directly in the second loop.
You did not show any example of your input data so I have to guess a bit here from your jmespath expression... but you basically don't need json_query at all and can stick to generic core ansible filters.
Here is how I see the solution in the second file once you cleaned-up the first:
---
- name: "API PUT System Inputs"
vars:
get_input_id: "{{ get_graylog_inputs.json.inputs | selectattr('title', '==', input.title) | map(attribute='id') | first }}"
uri:
url: http://{{ ansible_host }}:9000/api/system/inputs/{{ get_input_id }}
url_username : "{{ system.users.triple_admin.api_token }}"
url_password: token
headers:
X-Requested-By: X-Ansible
method: PUT
body_format: json
body: "{{ lookup('template', 'templates/post_template.j2') }}"
status_code: 201
return_content: yes
loop: "{{ inputs }}"
loop_control:
loop_var: input
You will probably have to debug and tune the expression to get the input id as I could not do it myself against an example data structure.