- hosts: all
  tasks:
    - name: Upload image to dockerhub
      when: credentials is defined
      block:
        - name: Log in to dockerhub
          command: "docker login -u {{ credentials.username }} -p {{ credentials.password }}"
          no_log: true
        - name: Upload to dockerhub
          command: "docker push {{ item.repository }}:change_{{ zuul.change }}"
          loop: "{{ images }}"