Using facts from one host group to configure another host group with Ansible

Question

I am trying to configure one set of hosts [nodes] using facts from another set of hosts [etcd]. Here is my hosts file

[master]
kubernetes ansib         


        

Answer 1

If you want to use facts of some host, you should gather them first.
Run setup task on [etcd] hosts to populate hostvars.

---
- name: Gather etcd facts
  hosts: etcd
  tasks:
    - setup:

- name: Configure common
  hosts: nodes
  sudo: True
  tasks:
    - name: etcd endpoints
      file: dest=/etc/kubernetes state=directory

    - name: etcd endpoints
      template: src=files/k.j2 dest=/etc/kubernetes/apiserver