How to define "all hosts but first in a group"?

[t goto]

Hello, Ansible experts.

I'm stuck with this and I need help.

I have several servers in a group in inventory file.

[webservers]
web1
web2
web3
web4
 .
 .

And I want to do some tasks to all hosts except first one in webservers group.

Unworkable pattern follows. :(

- name: do something all hosts but first in a webservers group
  hosts: webservers[1:last]
  tasks:
   (snip)

Since I can't fix how many hosts webservers group has, I want to make it rather dynamic.

Any suggestion?

[Tomasz Kontusz]

Can't check if it works, but Python's way to say "all but first" is `some_list[1:]`. So I'd guess you want `with_items: groups.webservers[1:]`

t goto <tomoy...@gmail.com> napisał:

--
Wysłane za pomocą K-9 Mail.

[t goto]

Thanks Mr.Tomasz

I tried with following target, but it didn't work :(

- name: do something all hosts but first in a webservers group

  hosts: webservers[1:]
  tasks:
   (snip)

Just "no host matched" and skipped.

[Bohdan Sydor]

On Wed, Nov 19, 2014 at 9:28 AM, t goto <tomoy...@gmail.com> wrote:


Hello,

> I have several servers in a group in inventory file.
> [webservers]
> web1
> web2
> web3
> web4
> .

Please, try this way:

> - name: do something all hosts but first in a webservers group
> hosts: webservers[1:last]
> tasks:

hosts: webservers:!web1

--
Regards,
Bohdan

[James Martin]

- hosts: webservers:!webservers[0]

Should do the trick. This means include all the webservers except the first one.

- James