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devops

How to Create Puppet Manifests / Modules – CentOS / RHEL

The client configurations are stored in files called manifests, in this file, the user defines system resources and their state, either using Puppet’s declarative language or a Ruby DSL (domain-specific language). Puppet discovers the client systems information via a utility called Facter, and compiles the Puppet manifests into a system-specific catalog containing resources and resource […]

Install and Configure Puppet on CentOS 7 / RHEL 7

This tutorial is for an old version of Puppet Master, some links are broken and may not work expected. A new version is available here: How to Install Puppet 4.x On CentOS 7 / RHEL 7. Puppet is a free and open-source configuration management tool, helps you to centrally deploy and manage the configurations of […]

How To Create Ansible Playbooks for IT Automation

Playbook is nothing but Ansible’s configuration management scripts, and it can be used to manage deployments and configurations of managed nodes. Playbook contains set of policies that you want your managed nodes to enforce or a set of steps in a general IT process. Playbooks are written and developed in a simple text language. The […]

How To Install Ansible on CentOS 7 / RHEL 7 / Ubuntu 18.04 / 16.04 & Debian 9

Ansible is a free configuration management tool, and it supports managing the configurations of Unix-like and Microsoft Windows systems. Ansible manages nodes over SSH or PowerShell and python to be installed on them. Ansible helps you to perform configuration, management, and deployment of software on 100s of nodes using SSH, the entire operation can be […]