How to change the host dynamically in ansible playbook - ansible

Question

I need to change the host dynamically in ansible playbook
Below is my sample playbook
---
- name: Deployment Playbook
hosts: “{{Servers}}”
tasks:
- name: deployment
shell: "deploy.sh {{DEPLOY_NAME}}"
In above play I need to change the server with respect of DEPLOY_NAME
Example
If {{DEPLOY_NAME}}=APP
THEN {{Servers}} = 172.17.65.17
If {{DEPLOY_NAME}}=SCRIPT
THEN {{Servers}} = 172.17.65.66
Previously we passed this as inventory from AWX. But now we need to handle this on playbook.
So please help me on this issue

Answer 1

---
- name: Deployment Playbook targetting Servers_1, will be skipped if DEPLOY_NAME is not APP
hosts: “{{Servers_1}}”
tasks:
- name: deployment
shell: "deploy.sh {{DEPLOY_NAME}}"
when: DEPLOY_NAME == 'APP'
- name: Deployment Playbook targetting Servers_1, will be skipped if DEPLOY_NAME is not SCRIPT
hosts: “{{Servers_2}}”
tasks:
- name: deployment
shell: "deploy.sh {{DEPLOY_NAME}}"
when: DEPLOY_NAME == 'SCRIPT'

Answer 2

I don't think you can do that. What I think it may work for you, is to do this instead:
---
- name: Deployment Playbook
hosts: localhost
tasks:
- name: deployment
shell: ssh root#{{ item.server }} deploy.sh {{ item.app }}
loop:
- { server: 'server1', app: 'app_1' }
- { server: 'server1', app: 'app_1' }
You could even improve this, by using that "inventory from awx", loading it as a "vars_files" which contains this list. So your final loop will just iterate over that list. Like this:
---
- name: Deployment Playbook
hosts: localhost
vars_files:
- your_list_file.yml
tasks:
- name: deployment
shell: ssh root#{{ item.server }} deploy.sh {{ item.app }}
loop: "{{ your_list_variable }}"