How to Install & Configure Puppet on Ubuntu 20.04.

Puppet is free & open source software configuration management tool & automated administrative engine.It is used to perform administrative tasks and server management taks remotely.

Using puppet,we can communicate between client & master server.It helps in performing administrative tasks and centralizing the server management process.It supports Linux, Unix, and Windows operating systems.

Install Puppet on ubuntu

Update the system.

apt-get update

Install Java.

apt-get install default-jdk

Set the Hostname.

vim /etc/hosts

Add the following lines.

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

Download Puppet Server on Master Node.

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

Here is the command output.

 https://apt.puppetlabs.com/puppet6-release-focal.deb
Resolving apt.puppetlabs.com (apt.puppetlabs.com)... 
65.8.205.123, 65.8.205.120, 65.8.205.110, ...
Connecting to apt.puppetlabs.com (apt.puppetlabs.com)|
65.8.205.123|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 11752 (11K) [application/x-debian-package]
Saving to: ‘puppet6-release-focal.deb’

puppet6-release-focal.deb 100%[====================>]  11.48K  --.-KB/s in 0s      

‘puppet6-release-focal.deb’ saved [11752/11752]

Install the required package.

dpkg -i puppet6-release-focal.deb

Here is the command output.

Selecting previously unselected package puppet6-release.
(Reading database ... 60149 files and directories currently installed.)
Preparing to unpack puppet6-release-focal.deb ...
Unpacking puppet6-release (6.0.0-14focal) ...
Setting up puppet6-release (6.0.0-14focal) ...

Update the package.

apt-get update 

Install the Puppet server.

apt-get install puppetserver

Open the puppetserver file.

vim /etc/default/puppetserver

Modify the memory size to 1GB.

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

Start & Enable the Puppet service.

systemctl start puppetserver
&
systemctl enable puppetserver

Check Puppet service.

systemctl status puppetserver

Here is the command output.

● puppetserver.service - puppetserver Service
     Loaded: loaded (/lib/systemd/system/puppetserver.service; enabled; vendor preset: enabled)
     Active: active (running); 3min 50s ago
   Main PID: 6389 (java)
      Tasks: 42 (limit: 4915)
     Memory: 423.0M
     CGroup: /system.slice/puppetserver.service
             └─6389 /usr/bin/java --Xms1g -Xmx1g -Djruby.logger.class=com.puppetlabs.jruby_utils.jruby.Slf4jLogger

Install Puppet Agent on Client Node

Download Puppet on a client node.

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

Install the required package.

dpkg -i puppet6-release-focal.deb

Update the package.

apt-get update

Install the Puppet agent.

apt-get install puppet-agent

Configure the Puppet file.

vim /etc/puppetlabs/puppet/puppet.conf

Add the following lines.

[main]
certname = puppetclient
server = puppetmaster

Start & Enable the Puppet service.

systemctl start puppet
systemctl enable puppet

Check Puppet service.

systemctl status puppet

Here is the command output.

● puppet.service - Puppet agent
     Loaded: loaded (/lib/systemd/system/puppet.service; enabled; vendor preset: enabled)
     Active: active (running); 8s ago
   Main PID: 183959 (puppet)
      Tasks: 2 (limit: 18859)
     Memory: 53.6M
     CGroup: /system.slice/puppet.service
             └─183959 /opt/puppetlabs/puppet/bin/rub

Show all the certificates.

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

Here is the command output.

Requested Certificates:
    puppetclient       (SHA256)  A4:9A:E9:87:8B:54:0A:4F:A0:78:65:1A:3C:99:B5:EC:3
    puppetmaster       (SHA256)  E9:25:4C:51:4E:47:D7:44:11:1F:C5:A9:4E:96:D9:E8:3A

Sign the certificates.

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

Here is the command output.

Successfully signed certificate request for puppetclient
Successfully signed certificate request for puppetmaster

Test the communication interface between the master and client nodes.

 /opt/puppetlabs/bin/puppet agent --test
Info: Using configured environment 'production'
Info: Retrieving pluginfacts
Info: Retrieving plugin
Info: Retrieving locales
Info: Caching catalog for puppetclient
Info: Applying configuration version '1599398'
Notice: Applied catalog in 0.02 seconds

 

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