Puppet- Installation

Step 1: Update Package List

Before you start the installation process, update the list of available packages:

sudo apt-get update -y

Step 2: Set Up Hostname Resolution

  With Puppet, master and client nodes communicate using hostnames. Before installing Puppet, you need to set up a unique hostname on each node.

1. Open the hosts file on each node by using:

sudo nano /etc/hosts

2. Paste the following lines at the end of each hosts file:

[puppet master ip] puppetmaster puppet
[puppet client ip] puppetclient

Where:

• [puppet master ip] is the IP address of the master node, and
• [puppet client ip] is the IP address of the client node.

3. Press Ctrl + X to close the file, and then type Y and press Enter to save the changes you made.

Step 3: Install Puppet Server on Master Node

1. Download the latest Puppet version on the master node:

wget https://apt.puppetlabs.com/puppet6-release-focal.deb

2. Once the download is complete, install the package by using:

sudo dpkg -i puppet6-release-focal.deb

3. Update the package repository:

sudo apt-get update -y

4. Install the Puppet server with the following command:

sudo apt-get install puppetserver -y

5. Open the puppetserver file by using:

sudo nano /etc/default/puppetserver

6. In the puppetserver file, modify the following line to change the memory size to 1GB:

JAVA_ARGS="-Xms1g -Xmx1g -Djruby.logger.class=com.puppetlabs.jruby_utils.jruby.Slf4jLogger"

7. Press Ctrl + X to close the puppetserver file. Type Y and press Enter to save the changes you made.

8. Start the Puppet service and set it to launch on system boot by using:

sudo systemctl start puppetserver
sudo systemctl enable puppetserver

9. Check if the Puppet service is running with:

sudo systemctl status puppetserver

Step 4: Install Puppet Agent on Client Node

1. Download the latest version of Puppet on a client node:

wget https://apt.puppetlabs.com/puppet6-release-focal.deb

2. Once the download is complete, install the package by using:

sudo dpkg -i puppet6-release-focal.deb

3. Update the package repository one more time:

sudo apt-get update -y

4. Install the Puppet agent by using:

sudo apt-get install puppet-agent -y

5. Open the Puppet configuration file:

sudo nano /etc/puppetlabs/puppet/puppet.conf

6. Add the following lines to the end of the Puppet configuration file to define the Puppet master information:

[main]
certname = puppetclient
server = puppetmaster

7. Press Ctrl + X to close the Puppet configuration file, then type Y and press Enter to save the changes.

8. Start the Puppet service and set it to launch on system boot by using:

sudo systemctl start puppet
sudo systemctl enable puppet

9. Check if the Puppet service is running with:

sudo systemctl status puppet

Step 5: Sign Puppet Agent Certificate

1. Using the Puppet master node, list all the available certificates:

sudo /opt/puppetlabs/bin/puppetserver ca list --all

2. Sign the certificates with:

sudo /opt/puppetlabs/bin/puppetserver ca sign --all

3. Use the following command to test the communication between the master and client nodes:

sudo /opt/puppetlabs/bin/puppet agent --test

Below is the puppet manifest directory/etc/puppetlabs/code/environments/production/manifests/site.pp