Update file main.yml

roles/cadvisor/tasks/main.yml

@@ -17,17 +17,19 @@
         - "{{ cadvisor_config_dir }}"
       become: yes
 
-    - name: Check if any container is using port {{ cadvisor_port }}
+    - name: Check if port {{ cadvisor_port }} is available
       shell: |
-    docker ps --format "table {{.Names}}\t{{.Ports}}" | grep {{ cadvisor_port }} || true
-  register: port_usage
+        if ss -tuln | grep -q ":{{ cadvisor_port }} "; then
+          echo "Port {{ cadvisor_port }} is in use"
+          exit 1
+        else
+          echo "Port {{ cadvisor_port }} is available"
+          exit 0
+        fi
+      register: port_check
+      ignore_errors: yes
       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