Geting vars from a different playbook to use as the "hosts" value

[Shih Oon Liong]

I am trying to run two playbooks at the same time, with one taking a var from the previous playbook.

My code is as follows

- name: Provision AWS
  hosts: localhost
  gather_facts: no
  vars_files:
    - configs/aws.yml
  tasks:
    - debug: msg='tag_Name_{{ aws.ec2.Name }}'
      register: aws_host_target
- hosts: {{ hostvars.localhost.aws_host_target.msg
  remote_user: ubuntu
  sudo: Trues
  tasks:
    - debug: var=hostvars.localhost.aws_host_target.msg

Yet everytime it hits the second playbook, the variable aws_host_target.msg is not readable specifically for the "hosts"

Any help would be great!        

[Michael DeHaan]

It's not possible to use inventory variables in the "host" spec ("- hosts:").

Also, don't use debug with register, instead, if you need to set a variable:

- set_fact:

       foo: "tag_Name_{{ aws.ec2.Name }}"

"- hosts: {{ hostvars.localhost.aws_host_target.msg"

This is also an error because the trailing "}}" is missing.

You can pass in host spec parameters with "-e" on the command line.

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[Shih Oon Liong]

Thanks! - that clarifies it for me.