Increase the verbosity of the playbook command

Ansible - ansible-playbook cli verbosity can be given:

• at the command line:

anisble-playbook -v
anisble-playbook -vv # for more
anisble-playbook -vvv # for more
anisble-playbook  -vvvv # to enable connection debugging

• via the environment variable ANSIBLE_DEBUG=1 to see detailed information

Use the log or debug module inside your playbook

• Ansible - Log
• Ansible - Debug module

Use tag to run or not debug task

• Tag: Example: The task will only run when the debug or never tag is explicitly requested. The never tag prevents a task from running unless a tag is specifically requested.

tasks:
  - debug: msg="{{ showmevar }}"
    tags: [ never, debug ]