Blacklisting hosts of a group in inventory file

[chavali shruti]

Suppose I want to blacklist a host of a group, in the inventory file, so as not to allow the running of any other tasks on it. How can i do it?

I do want it in my hosts list and later, after i run a playbook on it.. i want to blacklist it, so that others cannot run on it.

[Paul Belanger]

We create a disabled group in our inventory file, that we add hosts to
when we want to blacklist them for some reason. For example:

[foobar]
example1
example2
example3

[disabled]
example2

Then in our playbooks we do the following:

- hosts: foobar:!disabled
tasks:
...

This would be example1 and example3 would run, but example2 would not.

- Paul