Is there a list of tags accessible inside playbook?

Question

I want to access an array of tags defined at execution. Is this possible? For example:

ansible-playbook /dev/foo.yml --tags tag1

Can I read in some metadata containing value tag1 in foo.yml?

Answer 1

See Special Variables:

• ansible_run_tags
• ansible_skip_tags

For example, the below play

shell> cat pb.yml
- hosts: all

  tasks:

    - debug:
        msg: |
          ansible_run_tags: {{ ansible_run_tags }}
          ansible_skip_tags: {{ ansible_skip_tags }}
      run_once: true
      tags: [t1, t2, t8, t9]

gives (abridged)

shell> ansible-playbook --tags t1,t2 --skip-tags t3,t4 pb.yml
  ...
  msg: |-
    ansible_run_tags: ['t2', 't1']
    ansible_skip_tags: ['t4', 't3']