Update file main.yml

roles/cadvisor/tasks/main.yml

@@ -17,6 +17,17 @@
         - "{{ cadvisor_config_dir }}"
       become: yes
 
+    - name: Check if any container is using port {{ cadvisor_port }}
+  shell: |
+    docker ps --format "table {{.Names}}\t{{.Ports}}" | grep {{ cadvisor_port }} || true
+  register: port_usage
+  become: no
+
+    - name: Fail if port {{ cadvisor_port }} is in use
+      fail:
+        msg: "Port {{ cadvisor_port }} is already in use by another container"
+      when: port_usage.stdout != ""
+
     - name: Deploy cAdvisor docker-compose
       template:
         src: docker-compose.yml.j2