How should I restart a service using ansible?

Question

I tried to use Ansible service module to restart a service but I got an error.

 tasks:
    - ini_file: dest=/etc/dd-agent/datadog.conf
               section=Main
               option=use_mount
               state=absent
      register: ddagent
    - service: name='datadog-agent' state=reloaded
      when: ddagent.changed

This generated this error: ERROR: change handler (restart datadog) is not defined

I know that an alternative is to execute:

- command: "service datadog-agent restart"

Still, in this case what's the purpose of the service module?

Answer 1

You should add the following code:

handlers:
  - name: restart datadog
    service: name=datadog-agent state=restarted

The problem that you are facing is that you don't have the handler defined. This will do the job