Run task only if host does not belong to a group

Question

I\'d like to able to run an ansible task only if the host of the current playbook does not belong to a certain group. In semi pseudo code:

- nam         


        

Answer 1

You can set a control variable in vars files located in group_vars/ or directly in hosts file like this:

[vagrant:vars]
test_var=true

[location-1]
192.168.33.10 hostname=apollo

[location-2]
192.168.33.20 hostname=zeus

[vagrant:children]
location-1
location-2

And run tasks like this:

- name: "test"
  command: "echo {{test_var}}"
  when: test_var is defined and test_var