[artifacts] Collect logs from all networker and compute nodes

Recently, PR [1] improved the collection of logs from EDPM nodes adding
the networker nodes.
This new PR includes any nodes from groups whose name includes either
"networker" or "compute". This is relevant for BGP deployments, where
EDPM groups are named "<rack>-<nodetype>" (e.g. r1-computes) and for DCN
deployments where compute groups are named "dcn1_computes" and
"dcn2_computes".

[1] #2758

OSPRH-14643

Author: eduolivares

roles/artifacts/tasks/edpm.yml

@@ -31,25 +31,24 @@
     - name: Extract Compute and Networker from zuul mapping if any
       when:
         - cifmw_edpm_deploy_extra_vars is defined
+        - _edpm_vms_data | length > 0
       vars:
         _inv_data: "{{ _cifmw_artifacs_inventory_slurp['content'] | b64decode | from_yaml }}"
+        # _edpm_vms_data is a list of dictionaries, each one with only one entry
+        # that corresponds with a compute or a networker node
         _edpm_vms_data: >-
-                        {{
-                          (_inv_data['computes']['hosts'] | combine(_inv_data['networkers']['hosts']))
-                          if 'computes' in _inv_data and 'networkers' in _inv_data
-                          else ((_inv_data['computes']['hosts']) if 'computes' in _inv_data else
-                          (_inv_data['all']['hosts'] | default({})))
-                        }}
+          {{
+            _inv_data | dict2items |
+            selectattr('key', 'match', '^.*(compute|networker).*$') |
+            map(attribute='value.hosts') | flatten
+          }}
+        # each item is the single-entry dict
+        _edpm_vms_item: "{{ item | dict2items | first }}"
       ansible.builtin.set_fact:
         ssh_key_file: "{{ cifmw_edpm_deploy_extra_vars.SSH_KEY_FILE }}"
-        ssh_user: "{{ hostvars['compute-0'].ansible_user | default('zuul') }}"
-        edpm_vms: >-
-              {{
-                _edpm_vms_data | dict2items |
-                selectattr('value.ansible_host', 'defined') |
-                selectattr('key', 'match', '^(compute|networker).*$') |
-                map(attribute='value.ansible_host')
-              }}
+        ssh_user: "{{ _edpm_vms_item.value.ansible_user | default('zuul') }}" # all EDPM nodes have a common ansible_user
+        edpm_vms: "{{ edpm_vms | default([]) + [_edpm_vms_item.value.ansible_host] }}"
+      loop: "{{ _edpm_vms_data }}"
 
 - name: Generate logs on EDPM vms
   when: