Recently ran into some of these when running Puppet 2.7.x:
warning: Dynamic lookup of $variable is deprecated. Support will be removed in Puppet 2.8. Use a fully-qualified variable name (e.g., $classname::variable) or parameterized classes.
The solution was pretty obvious and it’s easy to fix because the solution is mentioned in the warning. However the warning fails to mention what to do with Facter facts inside ERB templates. Figuring out how to fix this took me quite a while although it’s easy too.
Let’s start by taking a look at this snippet:
NameVirtualHost <%= 'ipaddress' %>:80 < VirtualHost <%= 'ipaddress' %>:80 > Servername www.example.com DocumentRoot /var/www/vhosts/example.com ServerAdmin info@example.com
If we’d apply this template in a manifest using Puppet 2.7.x we would run into the warning mentioned above because the IP address fact is out of scope. In order to avoid this we use lookupvar for Facter facts:
NameVirtualHost <%= scope.lookupvar('ipaddress') %>:80
< VirtualHost <%= scope.lookupvar('ipaddress') %>:80 >
Servername www.example.com
DocumentRoot /var/www/vhosts/example.com
ServerAdmin info@example.com