use docker info modules for health checks and allow container name override

tasks/health_check.yml

@@ -1,7 +1,7 @@
 ---
-- name: Wait for containers to be healthy
+- name: Wait for container to be healthy
   community.docker.docker_container_info:
-    name: "{{ app_name }}"
+    name: "{{ app_container_name }}"
   register: container_info
   until: container_info.container.State.Health.Status | default('healthy') == 'healthy'
   retries: "{{ app_health_check_retries | default(30) }}"
@@ -21,29 +21,23 @@
   when: app_health_check | default(true) and app_health_check_method | default('docker') == 'http' and app_health_check_url is defined
   ignore_errors: true
 
-- name: Check if all containers are running
-  ansible.builtin.command:
-    cmd: docker compose ps --services --filter status=running
-    chdir: "{{ app_dir }}"
-  register: running_services
-  when: app_health_check | default(true)
-
-- name: Check total services
-  ansible.builtin.command:
-    cmd: docker compose ps --services
-    chdir: "{{ app_dir }}"
-  register: total_services
+- name: Inspect compose project containers
+  community.docker.docker_host_info:
+    containers: true
+    containers_all: true
+    containers_filters:
+      label: "com.docker.compose.project={{ app_compose_project_name }}"
+  register: compose_containers
   when: app_health_check | default(true)
 
 - name: Verify deployment success
+  vars:
+    _total: "{{ compose_containers.containers | length }}"
+    _running: "{{ compose_containers.containers | selectattr('State', 'equalto', 'running') | list | length }}"
   ansible.builtin.assert:
     that:
-      - running_services.stdout_lines | length == total_services.stdout_lines | length
-    fail_msg: "Not all containers are running. Running: {{ running_services.stdout_lines | length }}, Total: {{ total_services.stdout_lines | length }}"
+      - compose_containers.containers | length > 0
+      - _running == _total
+    fail_msg: "Not all containers are running. Running: {{ _running }}, Total: {{ _total }}"
     success_msg: "All containers are running successfully."
-  when: app_health_check | default(true) and total_services.stdout_lines is defined
-
-- name: Log deployment status
-  ansible.builtin.debug:
-    msg: "Deployment {{ 'successful' if (running_services.stdout_lines | length == total_services.stdout_lines | length) else 'failed' }}"
-  when: app_health_check | default(true) and total_services.stdout_lines is defined
+  when: app_health_check | default(true) and compose_containers.containers is defined