hiera lookup , extract one element

[Helen Paterson]

Hi,

I have the following hiera data in the node definition. I can lookup all the data create_resources('iis::manage_site', hiera_hash('iis::sites', [])) .

iis::sites:

 'myweb1':

    site_path: 'D:\Repositories\myweb1\wwwroot'

    port: '80'

    ip_address: '192.168.33.21'

    app_pool: 'ColdFusion'

 'myweb2':

    site_path: 'D:\Repositories\myweb2\wwwroot'

    port: '81'

    ip_address: '192.168.33.22'

    app_pool: 'ColdFusion'

But how do i just extract the ip_address ?

Regards

Helen

[Felix Frank]

Hi,

please note that

create_resources('iis::manage_site', hiera_hash('iis::sites', []))

is not the most atomic way of looking up hiera data at all. You could do
the same thing like this:

$sites = hiera('iis::sites', {})
create_resources('iis::manage_site', $sites)

This gives you the advantage of being able to just work with the $sites
hash as well.

$addr_web1 = $sites['myweb1']['ip_address']

Further notes:
1. Don't pass [] as the default value for a hash lookup. Use {}.
2. Use hiera_hash() only if you need to merge hash data from all
hierarchy layers.

HTH,
Felix

[Helen Paterson]

Thank you so much for this reply and thank you for the detailed example.

 

( I am using deep merge aswell )