Roles and Profiles

As you’ve seen throughout this course Puppet manifests and modules can become large, complex and confusing. To help avoid repeating the same code for every node definition we are going to create two new modules, role and profile.

Start by logging into the the puppetmaster node.

vagrant ssh puppetmaster

We are now going to create the two modules, let’s start with the role module.

cd /etc/puppetlabs/code/environments/production/modules
sudo puppet module generate <yourname-role> --environment production

Accept the defaults until you get to the description of the module. At this point go ahead and just type in Roles module, and then accept defaults until end.

Then for the profile module we are going to do the same thing

sudo puppet module generate <yourname-profile> --environment production

Accept the defaults until you get to the description of the module. At this point go ahead and just type in Profiles module, and then accept defaults until end.

Now that we’ve created the modules let’s go modify the profile module’s init.pp

sudo vim /etc/puppetlabs/code/environments/production/modules/profile/manifests/init.pp

Scroll to the very bottom of the file and make sure that you add the following below the class profile definition.

class profile::windows::mysql_workbench {

}

class profile::windows::putty {

}

Now let’s modify the role module’s init.pp

sudo vim /etc/puppetlabs/code/environments/production/modules/role/manifests/init.pp

Add the following at the very bottom below the class role definition.

class role::windows_admin {
  class {'profile::windows::mysql_workbench': }
  class {'profile::windows::putty': }
}

MySQL Workbench

Prereqs:

Let’s start out by installing the opentable-download_file module.

sudo puppet module install opentable-download_file --modulepath /etc/puppetlabs/code/environments/production/modules

Edit the new profile module’s init.pp file

sudo vim /etc/puppetlabs/code/environments/production/modules/profile/manifests/init.pp

Update the file to look like:

class profile {



}
  class profile::windows::mysql_workbench {

    file { 'c:/temp/':
      ensure => 'directory',
  }

    download_file { "Microsoft Visual C++ 2017 Redistributable (x64) - 14.14.26405":
      url                   => 'https://aka.ms/vs/15/release/vc_redist.x64.exe',
      destination_directory => 'c:\temp',
  }

    package { "Microsoft Visual C++ 2017 Redistributable (x64) - 14.14.26405":
      ensure            => 'installed',
      source            => 'c:\temp\vc_redist.x64.exe',
      install_options   => [ '/quiet'],
  }

    download_file { "Microsoft .NET Framework":
      url                   => 'https://download.microsoft.com/download/B/A/4/BA4A7E71-2906-4B2D-A0E1-80CF16844F5F/dotNetFx45_Full_setup.exe',
      destination_directory => 'c:\temp',
  }

    package { "Microsoft .NET Framework":
      ensure            => 'installed',
      source            => 'c:\temp\dotNetFx45_Full_setup.exe',
      install_options   => [ '/q'],
  }


    download_file { "MySQL Workbench 6.3.10 CE":

      url                   => 'https://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-workbench-community-6.3.10-winx64.msi',

      destination_directory => 'c:\temp',

  }



    package { "MySQL Workbench 6.3.10 CE":

      ensure            => 'installed',

      source            => 'c:\temp\mysql-workbench-community-6.3.10-winx64.msi',

  }
}

  class profile::windows::putty {

        file { 'c:/admin tools/':
          ensure => 'directory',
  }


    download_file {"Download Putty":
      url       => 'http://the.earth.li/~sgtatham/putty/latest/w64/putty.exe',
      destination_directory => 'c:\admin tools',
 }

    download_file { "Download Puttygen":
      url           => 'http://the.earth.li/~sgtatham/putty/latest/w64/puttygen.exe',
      destination_directory => 'c:\admin tools',
  }
}

Ok, now that we have our role and profile modules setup let’s go back to the winadmin machine, open up PowerShell as admin and run the puppet agent

puppet agent --verbose --no-daemonize --onetime

If you get errors regarding it not being able to install because the “The source does not exist” this is expected, if you look at the rest of the output you’ll see that it does download it eventually but the resource ordering is a little off.

A quick fix is to run the puppet agent on winadmin again and see if everything installs successfully.

puppet agent --verbose --no-daemonize --onetime

If the agent run completes successfully it’s time to verify that everything was installed as defined in our profiles.

Click the Windows button on the menu bar and at the top you should see MySQL Workbench

Click on that and if it starts then everything was installed just like we defined!

A fun thing you can do is log into the wiki server and connect to MySQL

mysql -uroot -ptraining

Then run the following command to allow external connections as the root user.

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'training';

Now flush privileges to force it to apply the changes

FLUSH PRIVILEGES;

After this is done edit the /etc/my.cnf file and comment out the bind-address = 127.0.0.1 line.

sudo vim /etc/my.cnf 

[mysqld]
basedir = /usr
#bind-address = 127.0.0.1

Restart the mysqld service

sudo service mysqld restart

Go back to the winadmin machine and start up MySQL Workbench. Once it’s running select database at the top and then click Connect to Database

In the new window fill in the following:

Hostname: 172.31.0.202
username: root

Click OK and you should be prompted to supply your password. Enter training and now you should be connected!

Lab Complete