CODEWITHSUNDEEP
ansibleyaml
Xavier DSouza
Xavier DSouza

Reputation: 2931

Ansible skip remaining tasks in playbook on condition

I am new to Ansible and have to update existing playbook tasks. Initially, there are 2 tasks to copy yml variable values to files - this runs in a loop per each cert and keys values. I want if the copy tasks are not changed - basically if the content is same the files are not overwritten, then the remaining tasks in the playbook should not be executed.

    - name: Copy cert files
      copy:
        content: "{{item.value}}"
        dest: /home/copyTest/dest/{{item.key}}.crt
        owner: test
        group: test
        mode: 0644
      with_dict: '{{certs_dict}}'
    - name: Copy key files
      copy:
        content: "{{item.value}}"
        dest: /home/copyTest/dest/{{item.key}}.key
        owner: test
        group: test
        mode: 0644
      with_dict: "{{keys_dict}}"
    - name: Stop server
        ...
        ...

If both these copy tasks results are unchanged, i.e, none of certs and keys files are unchanged, then the further tasks(Stop server, Start server, etc.) should not be executed.

Upvotes: 3

Views: 19680

Answers (1)

larsks
larsks

Reputation: 311635

Use the register keyword to store the results of your first two tasks:

- name: Copy cert files
  copy:
    content: "{{item.value}}"
    dest: /home/copyTest/dest/{{item.key}}.crt
    owner: test
    group: test
    mode: 0644
  with_dict: '{{certs_dict}}'
  register: cert_results

- name: Copy key files
  copy:
    content: "{{item.value}}"
    dest: /home/copyTest/dest/{{item.key}}.key
    owner: test
    group: test
    mode: 0644
  with_dict: "{{keys_dict}}"
  register: key_results

Place you remaining tasks in a separate task list file, and then in your main playbook conditionally include those additional tasks only if there were changes:

- include_tasks: additional_tasks.yml
  when: cert_results is changed or key_results is changed

You can read about including tasks here.

You can achieve something similar using a block in your playbook:

- when: cert_results is changed or key_results is changed
  block:
    - name: Stop server

    - name: Do something else

    ...

You can read about blocks here.

Upvotes: 12

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