Is there any way to select a single host when using a pattern?

Archives Ansible Project
1

hosts: group_a[0]

works, but this does not

hosts: group_a:&group_b[0]

is there any way to achieve the second without having to put run_once on every task?

2

Well, there is this

  • run_once: true
    block:
  • …

But can it be done via the host pattern?

3

put run_once at play level