Your Personal Sysadmin

Ansible: Display variables and depend on changed

Show run time variable values for host

- name: display all variables and facts known for a host
    var: hostvars[inventory_hostname]

Correct way of registering change on shelled out commands

- name: Handle shell output with return code
  ansible.builtin.command: cat 
  register: my_output # <- Registers the command output.
  changed_when: my_output.rc != 0

conditional when changed

- name: create systemd unit file
  dest: /path/to/foo
  src: foo.j2
  register: unit_file

- name: reload systemd daemon when unit file changed
  daemon_reload: true
  when: unit_file.changed

Hey! I'll happily receive your comments via email

Andreas Wagner
Freelance System Administrator from Tallinn, Estonia.