ipaddress gem requirement missing from readme

[rski]

As of this pull request, puppet-network uses ipaddress.

Not having it installed on the puppet agent will cause puppet agent -t to fail with an error like

Could not autoload puppet/type/network_config: cannot load such file -- ipaddress

running sudo gem install ipaddress on the agent fixes this.

This requirement is not reflected in the Readme. I will work on a pull request that will add to the README an explanation of this along with an example on how to install this gem using puppet.

[rski]

Also, maybe it's required on the master too. I'll look into this a bit more and make sure I know what is needed where, but this gem is definitely required somewhere at some point for puppet-network to work.

[igalic]

that should probably have an autorequire
…but then again, an autorequire isn't gonna really install things…

but another question: how, exactly, do you run a puppet infra without the ipaddress gem??

[rski]

@igalic well, we use the ipaddress gem now.

still, I'd like to be able to able to install ipaddress on a node using puppet rather than some other way before puppet runs. Or this could a horrible hack that should be avoided and the gem should be installed using some other way after all.

[rski]

It doesn't look like what I described in #129 will work so I might just close that issue. However I think that the docs should explicitly say that the ipaddress gem is required.