how to run a particular task on specific host in ansible

Question

my inventory file\'s contents -

[webservers]
x.x.x.x ansible_ssh_user=ubuntu

[dbservers]
x.x.x.x ansible_ssh_user=ubuntu

in my tasks file

Answer 1

If you want to run your role on all hosts but only a single task limited to the webservers group, then - like you already suggested - when is your friend.

You could define a condition like:

when: inventory_hostname in groups['webservers']