Ansible loop related issues

Question

I have a playbook which has multiple roles and serial setup so that fist it\'s running on one machine then on the rest of them. In one of the roles I have the following tasks:

Answer 1

ansible_eth0 fact may be unknown at the time of your task run.

You may want to add fact gathering play at the very top of your playbook:

- hosts: dbnodes
  gather_facts: yes
  tasks:
    - debug: msg="facts gathering"

- hosts: othernodes
  tasks:
    - name: getting dbnodes IP addresses
      ...