"register" list of ansible hostnames that are part of an inventory group

[Gregory Spranger]

hi all,

i am trying to be DRY, and wondering if i can somehow register all of the hosts that are part of inventory group .. for example:

#inventory

[db_slave]

host1

host2

#playbook

- name: create slave user for each slave host

  mysql_user:

    name=slave

    password=foo

    host={{ item }}

    state=present

  with_items:

    - #need help here

    - #somehow get list of hosts from group db_slave

 yes, i did see this example online:

{% for host in groups['db_slave'] %}

   {{ hostvars[host]['hostname'] }}

{% endfor %}

and i even tried to put that into my roles "vars" directory .. but just kept getting syntax errors which makes sense ..

# slave hosts

mysql_slave_hosts:

{% for host in groups['db_slave'] %}

  - {{ hostvars[host]['hostname'] }}

{% endfor %}

any thoughts ??

thanks as always,

greg

[Matt Martz]

I think what you probably want is something like:

#inventory

[db_slave]

host1

host2

#playbook

- name: create slave user for each slave host

  mysql_user:

    name=slave

    password=foo

    host={{ hostvars[item]['ansible_hostname'] }}

    state=present

  with_items: groups['db_slave']

No need to create another variable anywhere.  And I used ansible_hostname here, since hostname is not a standard var and I wasn't sure if that is a custom var you have set for those hosts.

-- 
Matt Martz
ma...@sivel.net

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[Gregory Spranger]

awesome !!

didn't you know you could reference it directly .. thanks for the info
and speedy reply -- will give it a try here in a bit ..


greg