I like that idea.
<rant>
Right now we're in a transition phase because I've inherited a horrible
Puppet configuration that does unspeakably stupid/evil things. I actually
have a rudimentary inventory script that polls puppetdb - eventually I'll
put that monstrosity to rest, but for now it's convenient. Right now I
still need to pass in the deploy_env variable because some configurations
require it and I haven't gotten around to having the inventory script
define them, but once that's in place I'll definitively go with your
suggestion and make environment-specific inventories.
</rant>
On Tue, Jun 24, 2014 at 12:08 PM, Michael DeHaan <mich...@ansible.com>
wrote:
> "
> - hosts: [ '{{ deploy_env }}-bal' ]
> "
>
> This is gross and I would recommend not doing this.
>
> Instead consider seperating your different environments into different
> inventory files (-i production), and having the host group just named "bal"
> in this case. You can still put nodes in different groups and keep your
> group_vars/ and host_vars/ directories all together.
>
>
>
>
> On Tue, Jun 24, 2014 at 11:13 AM, Claus Strommer <claus.spit...@gmail.com>
> wrote:
>
>> d'oh! I should have known that. Thanks a bunch!
>>
>>
>> On Tue, Jun 24, 2014 at 11:05 AM, Michael Peters <
>> michael00pet...@gmail.com> wrote:
>>
>>> When inside the {% %} part you are inside of jinja and don't need
>>> special syntax to tell it that your using jinja variables. Something
>>> like this should work:
>>>
>>> {% for host in groups[deploy_env + '-web'] %}
>>> server {{ host }} {{ host }}:80
>>> {% endfor %}
>>>
>>> On Tue, Jun 24, 2014 at 10:48 AM, Claus Strommer
>>> <claus.spit...@gmail.com> wrote:
>>> > Hi there,
>>> >
>>> > I have a play with a role that creates a load balancer template. I've
>>> > successfully tested it in my dev environment, using
>>> >
>>> >
>>> > {% for host in groups['dev-web'] %}
>>> > server {{ host }} {{ host }}:80
>>> > {% endfor %}
>>> >
>>> >
>>> > the 'dev-web' group is defined in my inventory, as well as 'stage-web',
>>> > 'prod-web', etc. What I'd like to do is change this template so that
>>> it can
>>> > be used in any environment. I am already passing a parameter upon
>>> calling
>>> > the play, --extra-vars "deploy_env=dev". In the play itself I can
>>> use this
>>> > variable to determine on which balancer the template gets applied, by
>>> using
>>> > something like this:
>>> >
>>> >
>>> > - hosts: [ '{{ deploy_env }}-bal' ]
>>> > serial: 1
>>> > vars_files:
>>> > - /var/lib/ansible/vars/{{ deploy_env }}.yml
>>> > roles:
>>> > - role: "haproxy-webbal"
>>> >
>>> >
>>> > However, if I try something similar in the template, e.g.
>>> >
>>> >
>>> > {% for host in groups['{{ deploy_env }}-web'] %}
>>> > server {{ host }} {{ host }}:80
>>> > {% endfor %}
>>> >
>>> > I get this error:
>>> >
>>> >
>>> > fatal: [stage-webbal-06.aws.primal.com] => {'msg': "One or more
>>> undefined
>>> > variables: 'dict object' has no attribute '{{ deploy_env }}-varnish'",
>>> > 'failed': True}
>>> >
>>> >
>>> > It seems that {{ deploy_env }} is not being expanded, and it's being
>>> taken
>>> > as a literal. Is this because it's within the {% %} section? If so,
>>> then
>>> > what is the correct syntax for doing this? Alternatively, is there a
>>> > cleaner way to approach this?
>>> >
>>> >
>>> >
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