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Puppet

US Soft Technologies > Puppet

Puppet is an open-source configuration management tool used to automate the provisioning, configuration, and management of servers and infrastructure. It enables system administrators and DevOps teams to define the desired state of their IT resources using a declarative language, allowing Puppet to enforce consistency across large environments. Puppet operates with a client-server architecture, where the Puppet master manages configurations and the Puppet agents run on target machines to apply these configurations. By automating repetitive tasks and ensuring uniform setups, Puppet helps reduce errors, improve compliance, and speed up infrastructure management in both on-premises and cloud environments.

Puppet is an open-source configuration management tool used to automate the provisioning, configuration, and management of servers and infrastructure. It enables system administrators and DevOps teams to define the desired state of their IT resources using a declarative language, allowing Puppet to enforce consistency across large environments. Puppet operates with a client-server architecture, where the Puppet master manages configurations and the Puppet agents run on target machines to apply these configurations. By automating repetitive tasks and ensuring uniform setups, Puppet helps reduce errors, improve compliance, and speed up infrastructure management in both on-premises and cloud environments.

  1. Architecture
  • Master-Agent Model: Puppet Master server manages configurations; Puppet Agents run on managed nodes.
  • Standalone Mode: Puppet can run in a masterless mode applying manifests locally.
  1. Manifests
  • Written in Puppet DSL (Domain-Specific Language).
  • Define desired system states using resources like files, packages, services.
  1. Modules
  • Collections of manifests, templates, files, and data to organize code.
  • Promote reusability and sharing.
  1. Resources
  • Fundamental building blocks describing system elements (e.g., package, file, service).
  • Declare resource states (e.g., package installed, service running).
  1. Classes
  • Group related resources for modular and reusable configuration.
  • Can be parameterized for flexibility.
  1. Facter
  • Puppet’s tool to collect system information (facts) such as OS, IP address, memory.
  • Facts are used to make conditional decisions in manifests.
  1. Templates
  • Use ERB (Embedded Ruby) or EPP (Embedded Puppet) templates to generate dynamic configuration files.
  1. Hiera
  • Hierarchical data lookup system for separating data from code.
  • Supports multi-level data sources (YAML, JSON, etc.) for better configuration management.
  1. PuppetDB
  • A data warehouse for storing Puppet reports and facts.
  • Enables querying node states and reporting.
  1. Puppet Forge
  • A repository of pre-built modules and code contributed by the community.
  1. Puppet Bolt
  • Agentless task runner for ad-hoc automation and orchestration.
  1. Catalog Compilation
  • Puppet compiles a catalog of resources for each node, describing the desired system state, which the agent then applies.

 

What is a manifest in Puppet?

A manifest is a file written in Puppet DSL that declares the desired configuration for resources like packages, files, and services.

Modules are reusable, organized collections of manifests, templates, and files used to manage specific functionalities or applications.

Facter is Puppet’s system inventory tool that collects facts (system information) from nodes to enable conditional configuration.

Kerala
Thiruvalla, Pandalam, Adoor, Pathanamthitta, Kayamkulam, Kottayam, Marthandam, Neyyattinkkara, Nedumangad, Thiruvananthapuram City, Kilimanoor, Karikode, Kollam City, Karunagapally, Punalur, Anchal, Kuttikkanam, Elappara, Kalamassery, Kaloor, Angamali, Thrissur, Palakkad, Manjeri, Valanchery, Perinthalmanna, Calicut (Kozhikode), Perumbavoor, Vyttilla, Alappuzha, Harippad.

Tamil Nadu
Velachery, Anna Nagar, Thiruvattiyoor, Neyveli, Aranthangi, Pudukottai, Nagapattinam, Karaikal, Ariyalur, Mulumichampatti, Saravanampatti, Gandhipuram, Kumbakonam, Mayiladuthurai, Vaniyambadi, Vellore, Tirupattur (Vellore), Kancheepuram, Thiruvannamalai, Hosur, Hosur East.

Karnataka
Bangalore Electronic City, Mysore Kuvempunagar, Mysore City.

Andhra Pradesh
Panruti, Dilsukhnagar, Chittoor, West Godavari.

Maharashtra
Panvel, Dombivli, Dombivli East, Thane, Kalyan, Akurdi, Chinchwad, Nigdi, Karvenagar, Revet, Kothrud.

West Bengal
Kolkata, Durgapur.

Rajasthan
Sikar, Kota, Jhalawar.

Jharkhand
Ranchi.

Uttar Pradesh
Allahabad, Lucknow, Rambagh.