On 20/01/14 13:48, Michael DeHaan wrote:
I should also add, the above is not a hack.
It's encouraged syntax :)
roles:
- { role: setup_users, users: "{{ my_users }}" }
Possibly I didn't explain what I meant by the "hack" very well: I meant
the one Jerome Wagner suggested which uses a 'loop' wrapper role with
the capability to repeat another named role N times (up to some bound
M), by supplying a list of N sets of parameters to pass. The role has M
invocations of that role, each of which is guarded by a conditional
which skips it unless there is a corresponding element in the list.
To quote:
Let's say you have you role : "ruby_install_one_version"
Now you define a new role "loop"
- { role: "loop", over: "ruby_install_one_version", iconf: [ {
version: "1.9.3-p448"}, { version: "2.0.0-p247" } ] }
in meta.main.yml / dependency, you add something like (I still have a
hard time with $ and {{}} in these contexts and I am not sure .length
is the way to do it)
- { role: "{{ over }}", conf: $iconf[0], when: "0 < iconf.length" }
- { role: "{{ over }}", conf: $iconf[1], when: "1 < iconf.length" }
- { role: "{{ over }}", conf: $iconf[2], when: "2 < iconf.length" }
- { role: "{{ over }}", conf: $iconf[3], when: "3 < iconf.length" }
- { role: "{{ over }}", conf: $iconf[4], when: "4 < iconf.length" }
Does Jerome's work-around fall foul of the limitation you mention? i.e.
That:
...the role must be applied in the same definition (but not the same
variables) to each host in the host group. Ergo, you can't have
different numbers of roles applied to different hosts in the same
group based on some kind of inventory variance.
If so, I'm curious to know in case I need to resort to this solution. I
would suspect that there would be no problem, since the parameters are
supplied directly to the role and not implicitly taken from the
host_vars/group_vars, but perhaps I'm not understanding something.
If not, couldn't there be an in-core Ansible solution which works
essentially the same way (but without the upper bound)?
Cheers,
N
--
You received this message because you are subscribed to the Google Groups "Ansible
Project" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
