Run ALTS i686 tests in native i386 images on x86_64 workers

inventories/alts/group_vars/celery_x86_64.yml

@@ -0,0 +1,9 @@
+---
+
+# i686 tasks run on x86_64 workers, pull native i386 images for them
+# instead of falling back to x86_64 ones (no multilib depsolving issues)
+docker_image_overrides:
+  - dist_name: almalinux
+    dist_versions: ['8', '9', '10']
+    platform: linux/386
+    image: quay.io/almalinuxautobot/almalinux

inventories/alts/hosts.yml

@@ -8,6 +8,10 @@ all:
       hosts:
         scheduler01:
     celery:
+      children:
+        celery_x86_64:
+          hosts:
+            x86_64-node01:
       hosts:
         x86_64-node01:
           celery_queues:

playbooks/templates/alts_service_config.yaml.j2

@@ -117,7 +117,13 @@ cleanup_yum_conf_docs_settings: {{ cleanup_yum_conf_docs_settings | bool }}
 ignore_ansible_install_errors: {{ ignore_ansible_install_errors | bool }}
 {% endif %}
 {% if docker_image_overrides is defined %}
-docker_image_overrides: {{ docker_image_overrides | to_json }}
+docker_image_overrides:
+{% for override in docker_image_overrides %}
+  - dist_name: "{{ override.dist_name }}"
+    dist_versions: {{ override.dist_versions | map('string') | list | to_json }}
+    platform: "{{ override.platform }}"
+    image: "{{ override.image }}"
+{% endfor %}
 {% endif %}
 {% if worker_type == 'opennebula' %}
 tests_base_dir: "{{ opennebula_tests_base_dir }}"