issue while including another playbook in ansible? - ansible

Question

I have written a playbook named as master.yaml as defined below
- hosts: master
remote_user: "{{ ansible_user }}"
tasks:
- name: Get env
command: id -g -n {{ lookup('env', '$USER') }}
register: group_user
vars:
is_done: "false"
- include: slave.yaml
vars:
sethostname: "{{ group_user }}"
worker: worker
when: is_done == "true"
where: inventory_hostname in groups['worker']
I am trying run another playbook named as slave.yaml as defined below, after a certain condition is met.
- hosts: worker
remote_user: "{{ ansible_user }}"
tasks:
- name: Write to a file for deamon setup
copy:
content: "{{ sethostname }}"
dest: "/home/ubuntu/test.text"
Now i have two question:
I am not able to set the value of var isDone. slave.yaml should
only work when isDone is true.
2.How salve.yaml access the value worker. I have defined group worker in inventory.yaml

Answer 1

I do not know if it's the right way to go to reach your objective. However I tried to make this playbook work by keeping as much as possible your logic. Hope it helps.
The point is that you cannot use import_playbook inside the play. Check the module documentation for more information.
So I propose to share code with a role instead of a playbook. You will be able to share the slave role between the master playbook and another playbooks, a slave playbook for example.
The ansible folder structure is the following.
├── hosts
├── master.yml
└── roles
└── slave
└── tasks
└── main.yml
Master.yml
---
- name: 'Master Playbook'
# Using the serial keyword to run the playbook for each host one by one
hosts: master
serial: 1
remote_user: "{{ ansible_user }}"
tasks:
- name: 'Get env'
command: id -g -n {{ lookup('env', '$USER') }}
register: group_user
- name: 'Calling the slave role'
import_role:
name: 'slave'
# The return value of the command is stored in stdout
vars:
sethostname: "{{ group_user.stdout }}"
# Only run when the task get env has been done (state changed)
when: group_user.changed
# Delegate the call to the worker host(s) -> don't know if it's the expected behavior
delegate_to: 'worker'
Slave main.yml
---
- name: 'Write to a file for deamon setup'
copy:
content: "{{ sethostname }}"
dest: "/tmp/test.text"
At the end the /tmp/test.text contains the effective user group name.