Puppet Error Could not find class mysql server for example com on node example com

Question

I get the following error when i'm trying to invoke a module using a nodes.pp file like this:

 node 'example.com' {
    include '::mysql::server'
 }

[puppet@example mysql]$ sudo puppet apply ~puppet/puppet/manifests/site.pp
Error: Could not find class ::mysql::server for example.com on node example.com

But I have installed the modules successfully,

[puppet@swarmcritic ~]$ puppet module install puppetlabs/mysql
Notice: Preparing to install into /home/puppet/.puppet/modules ...
Notice: Created target directory /home/puppet/.puppet/modules
Notice: Downloading from https://forge.puppetlabs.com ...
Notice: Installing -- do not interrupt ...
/home/puppet/.puppet/modules
└─┬ puppetlabs-mysql (v2.1.0)
  └── puppetlabs-stdlib (v4.1.0)

How do i fix this error?

Answer 1

• This might be because you might not be logged in as a root user. 

• If you had worked in the root account, Puppet would (presumably) have installed the module into /etc/puppet/modules and there would have been no problem. 

• It's only because you might have created a user account and then invoked the puppet module install command without sudo that the modules ended up in ~myusername/.puppet.

• To solve the problem, Instead of trying to modify the Puppet path, you could  install the module explicitly into /etc/puppet/modules using the following command:

sudo puppet module install -i /etc/puppet/modules puppetlabs/mysql

• Now puppet apply would work fine.

• Further  if you execute the Puppet module install command with no -i argument and root access, it will install the module into /etc/puppet/modules, but if you don't have root access, it will install it into ~myusername/.puppet/modules/. 

• Put a sudo in front of the original module installation command like this:

sudo puppet module install puppetlabs/mysql

• Now there won't be any problem. You don't have to specify the -i argument!.