Add docker-compose down on failure

ansible/main/tasks/harbor.yaml

@@ -37,6 +37,12 @@
   register: install_command
   ignore_errors: yes
 
+- name: Remove containers on harbor setup failure
+  command: docker-compose down -v
+  args:
+    chdir: /home/{{ user }}/harbor
+  when: install_command.rc != 0
+
 - name: Restart docker daemon on harbor setup failure
   systemd:
     name: docker