Understanding the Puppet Architecture: Master, Agent, and Resources

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What is puppet

Have you ever heard of Puppet?

If you haven’t, you are missing out on a powerful tool that makes managing IT infrastructure a breeze.

Puppet is an open-source configuration management tool for automating and simplifying IT infrastructure management.

When Puppet is in action, a central server holds all the server configuration information. Occasionally, other servers in the cluster synchronize information with this central server, download new configuration details, and apply it locally.

This article offers a concise overview of how Puppet works and the benefits it brings to server management.

However, let’s first start with a look at the idea of configuration management.

Table Of Content

  1. What is Configuration Management?
  2. How Does Puppet Work?
  3. What Can Puppet Do?
  4. Advantages and Disadvantages of Puppet
  5. Why Organizations Should Consider Puppet For Operation Management
  6. Puppet’s Use Cases
  7. Conclusion
  8. FAQ’s

What is Configuration Management?

Configuration management is all about keeping servers and systems in a desirable state. This allows for greater environmental control and ensures consistency across multiple locations and deployments.

Administrators can regularly audit their environment through configuration management and take corrective action when needed.

In modern distributed server environments, configurations change frequently due to internal and external factors, such as changes in policies and procedures due to software and hardware updates. The updates can be as minor as opening a port on the firewall or more complex, such as relocating servers within the network.

That’s why you need a configuration management tool, such as Puppet, to take care of configuration management tasks. This centralized approach helps manage all aspects of managing server configurations without having you worry about missing anything.

How Does Puppet Work?

A typical Puppet setup has two entities: Puppet Master and Nodes.

Puppet works by having a master server run a set of scripts or “manifests” that are then sent to each managed node. The nodes regularly check in with the master server to look for updated manifests and then execute them locally as required.

This allows users to update configuration settings across multiple nodes at once with minimal effort. In addition, Puppet supports various platforms and technologies like Linux, Windows, Docker, AWS, and Kubernetes.

What Can Puppet Do?

Puppet can automate many of the tedious tasks in IT infrastructure management. With Puppet, administrators can quickly deploy software and services across multiple servers, ensuring consistency in server configuration management.

In general, Puppet is used for scheduling tasks, such as security patching or disk space monitoring. This automation reduces the manual effort of updating configurations across multiple nodes while ensuring all nodes are consistently configured.

Puppet is a great tool for IT administrators and is becoming increasingly popular due to its ability to help automate configuration management tasks.

Consider the following scenario.

Your IT infrastructure consists of hundreds of Ubuntu servers that handle various tasks.

Now if you wish to install a new package on all these servers, you have two options: you can either manually install the package on each server or write a Puppet manifest to automate the task.

Advantages and Disadvantages of Puppet

Puppet is one of the must-have tools in DevOps because of the benefits it brings to process automation. However, Puppet does have some drawbacks that could deter some engineers. Being a DevOps engineer, you must be aware of these pros and cons before using Puppet for managing your environments.

Let’s start with the advantages.


Here are the benefits Puppet offers to DevOps engineers


Puppet can automate tasks such as installing, configuring, and maintaining software components across the IT infrastructure.

A good use case is when a DevOps engineer needs to automate operating system package installation or update tasks on remote nodes. The engineer can use Puppet to save time by updating the manifest at the master server. All the nodes in the network get the updated manifest and apply the updates as instructed.

Important: DevOps engineers should take care while performing tasks in a production environment. It is always a good practice to consult a Puppet specialist when writing and implementing manifests.


Puppet can scale up to manage large networks of computers, servers, and virtual machines with minimal effort.

This is one of the critical advantages that enables system administrators to quickly scale up their infrastructure and keep it in sync automatically without missing anything.


Puppet can help maintain security across the infrastructure.

It allows administrators to set up a system of checks and balances to alert them when any unauthorized changes are made to the network or the system detects suspicious activities.

This ensures that only authorized users have access to sensitive configuration files or data. This adds an extra layer of security on top of existing measures.


As mentioned above, Puppet could introduce some friction into existing processes, particularly when it’s introduced for the first time.


For some DevOps teams, Puppet can be a complicated tool to learn and use, especially for those with limited experience.

Often, organizations new to Puppet invest in training and certifications for their staff members to promote efficient usage.


There is a cost associated with using Puppet, as it requires dedicated servers for master-agent communication and an experienced team of engineers to maintain the system.

This can be quite expensive for smaller businesses that often can’t find resources to spare.

Dependency Issues

Unfortunately, one of the drawbacks of Puppet is its ability to create dependency issues if a part of a manifest fails. If a single module or script within a manifest fails, it can cause the entire system to become unstable or unresponsive. This can be a significant issue for system administrators as they may need help pinpointing the problem’s source quickly.

Puppet Server Vulnerability

Despite its many benefits, the Puppet server can also be vulnerable to certain security risks.

For instance, if left unpatched or misconfigured, attackers can gain access to sensitive data or execute malicious code on the system. In addition, if intruders find a way into the system, they can use the Puppet Server as an entry point for further attacks on nodes.

Why Organizations Should Consider Puppet For Operation Management

Puppet is an Infrastructure as Code (IaC) tool that helps organizations automate their IT operations.

It works by using declarative language to define the desired state of infrastructure. This declarative language allows organizations to codify their IT infrastructure and maintain it in an automated and consistent manner.

Puppet can also deploy new systems, manage configurations and deploy applications across the entire IT infrastructure. In addition, it can help organizations with tasks such as compliance reporting, audit trails, and system health checks.

Ultimately, Puppet aims to improve efficiency, reduce manual tasks and increase security within the IT environment.

Puppet’s Use Cases

Many large companies, including Microsoft, Google, Amazon Web Services (AWS), Oracle, and Red Hat, use Puppet to streamline their IT operations. Puppet is also used by many small to medium-sized businesses that want to automate their IT operations without investing in a costly software solution.

New York Stock Exchange (NYSE)

The New York Stock Exchange (NYSE) is the world’s largest stock exchange where leading global companies are traded.

NYSE requires complex systems to maintain a secure, reliable, and efficient trading environment. To ensure these systems remain operational and up-to-date, NYSE has turned to Puppet.

NYSE uses Puppet to automate its infrastructure’s deployment, configuration, and management. This includes applications such as databases, web servers, and monitoring systems. With Puppet, NYSE can quickly deploy new systems or make changes across multiple machines quickly and efficiently.

Additionally, Puppet provides an easy-to-use platform for integrating the system with other applications and services. Finally, Puppet makes monitoring their infrastructure in real-time easy, ensuring that all systems remain secure and compliant with industry standards.

DBS Bank

DBS Bank is a multinational banking and financial services corporation headquartered in Singapore.

DBS Bank needed an efficient way to manage its infrastructure’s security configuration to keep up with the ever-increasing security threats and compliance requirements. They adopted Puppet Enterprise, an Infrastructure as Code (IaC) platform, to meet this need.

With Puppet Enterprise, DBS Bank can quickly and easily deploy new security policies across all its systems. This helps them reduce the time it takes to configure and maintain their infrastructure and ensure that all security controls remain up-to-date and compliant with regulatory requirements.


Transurban, a leading toll road operator in Australia, adopted Puppet to streamline the development of their customer service chatbot.

The use of Puppet allowed Transurban to quickly and efficiently deploy its chatbot across multiple web platforms and mobile apps. They use Puppet as it enables them to easily keep track of all the necessary components to be configured for the chatbot.

Moreover, Transurban was able to speed up its DevOps process significantly by using Puppet. This allowed them to quickly make changes and deploy new features with minimal effort and time.


Puppet is used in DevOps to automate infrastructure management. It enables companies to manage, configure and deploy their applications efficiently and quickly. It provides a unified platform for IT teams to monitor, track and automate changes across the infrastructure.

Puppet helps DevOps teams by automating repetitive tasks such as application deployment, configuration management, orchestration of services, and overall systems management. It also allows teams to quickly identify and resolve issues with their infrastructure, as well as maintain system reliability and performance.

Additionally, Puppet helps teams ensure their systems remain secure and compliant with industry standards.

Due to its flexibility and scalability, organizations increasingly adopt Puppet for DevOps automation. It allows teams to quickly deploy applications in various environments, including public clouds, private clouds, and on-premises data centers.

If you’re looking for a way to streamline your IT management processes, Puppet is worth considering.


Q-1) Is Puppet an AWS service?

–> No, Puppet is not an AWS service. Puppet is a configuration management tool that automates the deployment and management of applications and infrastructure components.
It helps organizations to manage their IT infrastructure more efficiently by automatically provisioning, configuring, and managing servers and other components.
With Puppet, users can define their automation logic to quickly deploy and manage applications and services across multiple cloud platforms.

Q-2) What are the Puppet versions?

–> Puppet is available in two versions: Puppet Enterprise and Puppet Open Source.

Puppet Enterprise is a commercial version of Puppet that includes many add-on features, such as role-based access control, automated orchestration, identity management, and more.

Puppet Open Source is the accessible version of Puppet which provides all of the core functionality but lacks some of the advanced features found in Puppet Enterprise.

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