Ansible playbook to dump host environment, groups and variables

debug_env.yml

# Standalone easy-to-use one-file playbook
# Inspired from https://coderwall.com/p/13lh6w/dump-all-variables
- hosts: all
  gather_facts: yes
  become: no
  connection: local

  vars:
    debug_file: "debug_env_{{ inventory_hostname }}.log"

  tasks:
    - name: Dump all host variables
      copy:
        dest: ./{{ debug_file }}
        content: |
          Module Variables ("vars"):
          --------------------------------
          {{ vars | to_nice_json }}
          
          Environment Variables ("environment"):
          --------------------------------
          {{ environment | to_nice_json }}
          
          GROUP NAMES Variables ("group_names"):
          --------------------------------
          {{ group_names | to_nice_json }}
          
          GROUPS Variables ("groups"):
          --------------------------------
          {{ groups | to_nice_json }}
          
          HOST Variables ("hostvars"):
          --------------------------------
          {{ hostvars | to_nice_json }}

    - debug:
        msg="Look at content of local file ./{{ debug_file }}"