Ansible: How to parse looped registered variable? - json

Question

I'm working on a playbook that needs to make some webrequests which is getting back JSON output. This works awesome for single requests, but I need to loop through a list to get a list of docker images.
Here is what I got so far:
- name: get all repositories from project
uri:
url: "https://{{ harbor_url }}/api/v2.0/projects/{{ harbor_project }}/repositories?page=1&page_size=50"
return_content: yes
validate_certs: no
url_username: "{{ username }}"
url_password: "{{ password }}"
force_basic_auth: yes
register: repositories
- name: temp to variable
set_fact:
repo_list_tmp: "{{ repositories.json | json_query('[*].name') | list }}"
- name: set repos as a list and trim names
set_fact:
repo_list: "{{ repo_list|default([]) + [ item.split(seperator)[1] ] }}"
loop: "{{ repo_list_tmp }}"
- name: get all images from a project
uri:
url: "https://{{ harbor_url }}/api/v2.0/projects/{{ harbor_project }}/repositories/{{ item }}/artifacts?page=1&page_size=50&with_tag=true&with_label=false&with_scan_overview=false&with_signature=false&with_immutable_status=false"
return_content: yes
validate_certs: no
url_username: "{{ username }}"
url_password: "{{ password }}"
force_basic_auth: yes
headers:
Content-Type: "application/json"
loop: "{{ repo_list }}"
register: images
The last task loops through the repo_list variable and register it's output to "images", as Ansible works the register in a loop always creates a dictionary and here's the proble, I got no clue on how to get specific values with a json query or something else out of it.
As the output is too big for stackoverflow I added it to a pastebin:
https://pastebin.com/GzQJfBUL
This is the whole output from the URI task. What I need is to extract the following:
item (in this example myimage or myotherimage) -> tags -> name
For example, inside the output is this entry:
"tags": [
{
"artifact_id": 4776,
"id": 2373,
"immutable": false,
"name": "MYTAG_ELASTICSEARCH",
"pull_time": "0001-01-01T00:00:00.000Z",
"push_time": "2021-09-21T11:33:47.687Z",
"repository_id": 303,
"signed": false
}
How do I extract values from a looped registerd value?
Thank you
Dan

Answer 1

According to mdaniel's comment below the first post, this did the trick:
{{ images | json_query('results[*].json[*].tags[*].name') | flatten }}
Thank you!