Get the pid of a running playbook for use within the playbook

Question

When we run a playbook, with verbose output enabled, in the ansible logs we can see something like this:

2016-02-03 12:51:58,235 p=4105 u=root | PLAY RECAP

Answer 1

This might be what you are looking for, but is only applicable to Linux:

- name: Get the pid of this playbook
  shell: pstree -spal $PPID | grep ansible-playbook | awk '{print $1;exit}' | awk -F, '{print $2}'
  register: ansible_pid

- name: Set the ansible playbook pid variable
  set_fact:
    ansible_playbook_pid: "{{ ansible_pid.stdout|int }}"