Categories

How to Reset an HPE Blade iLO to factory default

During a bulk deployment you noticed that, one of the HPE blade iLO in an HPE c7000 enclosure is not responding properly or configurations are not correct. And even after hours of inv...

How to get or set iLO details from Linux and Windows (when you lost iLO access)

As an sysadmin, its always headache to deal with remote systems as rely on remote consoles (HP iLO, Dell iDRAC etc) for servers to access in case there is an issue on server access. A...

Quick Hardware Collection Script for HP C7000 Enclosure

Since I am playing with so many HP bladecenters daily, it was bit difficult to do quick hardware checks whenever there is an issue. So I have wrote some quick loops and test scripts f...

Upgrade HPE iLO from Linux Command Line

How to find the Bladecenter/Enclosure name of Blade

You got a blade server details to work with and you need to find the enclosure name and details, the blade installed in, how ?

How to find iLO MAC address for BladeCenter/Enclosure

Book Review: Solutions Architect-s Handbook, Third Edition

I recently finished the Solutions Architect’s Handbook, third edition , by Saurabh Shrivastava and Neelanjali Srivastav, and I must say, it’s a treasure trove for anyone in the field....

Book Review: -Architecture and Design of Linux Storage Stack-

Author: Muhammad Umer

Now Available: Updated Ansible Lab using Vagrant and VirtualBox!

I am happy to announce the updated version of the Ansible Lab code, based on the valuable feedback from our incredible learning community! This lab is designed to provide you with a h...

Adding Custom Entries in /etc/hosts File in Kubernetes and OpenShift Containers

Introduction:

A Shift in Focus: Why I Redirected My Efforts from OpenGuard to Event-Driven Ansible

Introduction

ChatGPT and Google Bard: What is the Future of Software Development?

As technology advances, we have witnessed the emergence of Artificial Intelligence (AI) in various fields. The use of AI in software development is no exception. ChatGPT and Google Ba...

Running Ad Hoc commands from Ansible Automation Controller (Ansible Automation Platform)

Introduction

Ansible Automation for Windows

Ansible’s reputation as a Linux automation powerhouse is well-deserved. But a common misconception lingers: is Ansible strictly for Linux environments? The answer? Absolutely not!

Terraform Cheat Sheet

What is Terraform

Configure Red Hat Satellite Content Host with Remote Execution

Using Red Hat Satellite is a great way to manage your RHEL servers and contents including updating, patching or installing software packages. A new method for remote content managemen...

How to Register Content Host to Red Hat Satellite

A host is any virtual or physical Linux client that Red Hat Satellite manages. You have different ways to register a content host in Red Hat Satellite; either using the activation key...

OpenShift Architecture

Welcome back to the OpenShift BootCamp series .

How To Download RHEL8 for Free

Red Hat Enterprise Linux 8 (RHEL) is the most well known enterprise Linux distribution and also famous for it’s world class support system. As we all know, RHEL is distributed and sup...

Installing a Kubernetes Cluster using minikube

Photo by Eva Elijas from Pexelsminikube is the easiest method to deploy a Kubernetes cluster for testing purpose. You can simply spin up a cluster in minutes on your laptop or worksta...

What is Hosted OpenShift Cluster

Photo by Belle Co from PexelsRed Hat OpenShift is the well known enterprise Kubernetes distribution and it is a platform with ready-to use features, compared to the default Kubernetes...

How to Install VMWare vSphere Hypervisor ESXi

We all know VMWare Products are always on top of the list for your virtualization requirements. But you can use the base ESXi for setting up a simple Virtualization setup with a singl...

How to Import Existing VMWare VM-s into Terraform

Terraform is an amazing tool for your infrastructure automation. Everything about your infrastructure can be write as code and maintain by team; means your infrastructure is transpare...

Kubernetes Certification Guide: How to Pass KCNA, KCSA, CKA, CKAD, and CKS

Kubernetes is everywhere now — whether you’re deploying apps, managing infrastructure, or working on security, Kubernetes is a core skill. The certifications from CNCF and Linux Found...

How to Install VMWare vCenter Server Appliance

When we talk about virtualization, VMWare is one of the best choice and most popular in town. You can download VMware vSphere Hypervisor 6.7 for FREE and install on bare metal servers...

Installing oVirt 4 with Self-Hosted Engine on Enterprise Linux

(Image by [@tvick)](https://unsplash.com/@tvick)/[unsplash](https://unsplash.com/)) oVirt is one of the best free and open-source virtualization solution with enterprise level featur...

Cloud OnBoard: GCP Fundamentals Series [Online Training]

Google Cloud Platform has announced a new online training session – Cloud OnBoard : GCP Fundamentals Series which will be happening on 24th-26th March 2020 . This will not be just sli...

ansible-tower-service, Start or Stop Ansible Tower

Image: rockwellcollins.com | 01 Jan 2000 — Hand on throttle — Image by © Firefly Productions/CORBIS Learn Ansible : Automation with Ansible – All You Want to Learn

GNS3 VM – How to Enable KVM Support

GNS3 (Graphical Network Simulator) is the most popular – open source, free software – tool for designing and simulating network infrastructure.

How to Request Resource Quota Increase in Microsoft Azure

As we know public cloud is offering unlimited* amount of resources and as an end user of public cloud we don’t need to worry about the backend resources. But, there are few facts to c...

Configure TLS Encrypted Tunnel For Remote Logs Using Syslog-ng

You might be a Sysadmin, developer, DBA or whatever, logs are like treasure boxes for anyone working in IT. And the best practice to keep logs in a central location together with loca...

Learn the basics of Linux from Red Hat [FREE]

Red Hat is offering its beginner level Linux course at no-cost; yes you heard it right – Its free ! Red Hat Enterprise Linux Technical Overview (RH024) is offering as Video Classroom ...

Ansible and Jenkins integration – Red Hat Webinar

Join this Red Hat webinar to see how to use Jenkins pipelines to deploy simple applications using Ansible Tower.

OpenShift Cluster – How to Drain or Evacuate a Node for Maintenance

Image : www.oemoffhighway.comAs we know OpenShift clusters are bundled with multiple compute nodes, master nodes, infra nodes etc, it’s not a big deal to manage node maintenance for O...

OpenShift Container Platform 3.11 Installation Documents

Since OCP 3.11 is available now, you may refer below documents for OpenShift Container Platform 3.11 Installation on different infrastructure or platforms. Those are very quick docume...

How to Create, Increase or Decrease Project Quota in OpenShift

Image Credit : https://www.joc.comUsually application owner or project owner will specify the quota settings (Memory and CPU) during project creation. But sometimes, they realize that...

How to install racadm for iDRAC on RHEL / Linux

Dell has a beautiful tool for remote server management called iDRAC which is almost same like HPE iLO, but with different features. You can access iDRAC using GUI or via ssh. But what...

How To Create A New User In iDRAC Via Local RACADM From Linux

There might be situations like you forgot or lost your iDRAC login credentials and you don’t have an option to access iDRAC since the server is in a remote location. Using local RACAD...

Enable LVM flag on partition using parted in Linux

Recently we have noticed some issue with one of our filesystem having issue and realized wrong flags on partition which was used as a Physical Volume (PV) in LVM ( Logical Volume Mana...

How to find the pod details from container in OpenShift

When we have issue with container and we are not sure which pod the container belongs to; we can find the pods details as below.

Enable newly installed vFlash card in Dell iDRAC

I have explained how to to use vFlash card as an easy boot method here . If you are not able to see a vFlash card (or vFlash card tab is missing in iDRAC screen GUI), then it might be...

ComVault Simpana Installation (cv11) on Linux (RHEL7)- Step by Step

This is a very basic article to share the cv11 installation. If any corrections/mistakes, please feel free to feedback as I am not an expert on this item.

How to create a partition greater than 2TB in Linux

Due to limitation of fdisk utility, you will not be able to create partition greater than 2TB in linux with fdisk. This is a quick example to show how to create a bigger partition usi...

Update Dell iDRAC Firmware via Web GUI

We have experienced that, due to iDRAC firmware issues there will be so many connections issues on Dell remote access and one of the time-consuming problem is opening java based “Virt...

Boot from image using vFlash in Dell PowerEdge Servers

Dell iDRAC is a feature-full server remote administration tool but iDRAC is missing the very basic functionality to boot from a ftp or http based ISO image. (With an HPE server, you c...

How To Configure Minicom For Serial Console Connections

Those who work with infrastructure/server deployment knows how difficult it is to get a console for those devices having no display like switches, routers and a blade chassis/enclosur...

How to Install and Configure AWS Command Line Interface (CLI)

The AWS Command Line Interface (CLI) is a unified tool to manage your AWS services. With just one tool to download and configure, you can control multiple AWS services from the comman...

How to Reset an HPE Blade iLO to factory default

During a bulk deployment you noticed that, one of the HPE blade iLO in an HPE c7000 enclosure is not responding properly or configurations are not correct. And even after hours of inv...

4 Websites You Can Use For Subnet Calculation

You might be a System Administrator, Developer, Infra Designer, Architect or a Capacity Manager by role, but getting quick information on your VLAN or available subnet is always a hea...

How to get or set iLO details from Linux and Windows (when you lost iLO access)

As an sysadmin, its always headache to deal with remote systems as rely on remote consoles (HP iLO, Dell iDRAC etc) for servers to access in case there is an issue on server access. A...

How To Recover HP C7000 Enclosure OA Access (BladeCenter)

Read How To Recover HP C7000 Enclosure OA Access (BladeCenter).

Quick Hardware Collection Script for HP C7000 Enclosure

Since I am playing with so many HP bladecenters daily, it was bit difficult to do quick hardware checks whenever there is an issue. So I have wrote some quick loops and test scripts f...

Upgrade HPE iLO from Linux Command Line

Subnet Mask Information – Quick Reference Sheet

AddressBitsPrefNetMask1 0/32255.255.255.2552 1/31255.255.255.2544 2/30255.255.255.2528 3/29255.255.255.24816 4/28255.255.255.24032 5/27255.255.255.22464 6/26255.255.255.192128 7/25255...

How to check CPU count information (LUX)

Quick methods to check.

Register in RHN after installation

There are many situations where we need to register the host/server to RHN server manually, due to network issues, bad certificate/authentication or time difference on the host during...

How to Check Linux/Unix Operating System Version, Maintenance Level, Architecure

We can identify the Unix Operating System architecture by uname or arch command. Try below examples.

dmidecode – best usages [updated]

Check Hyper-threading (Virtualization) available or not

UNIX / Linux shutdown Commands

Shutdown the machine immediately

Check MD5 in windows using fciv

The File Checksum Integrity Verifier (FCIV) is a command-prompt utility that computes and verifies cryptographic hash values of files. FCIV can compute MD5 or SHA-1 cryptographic has...

How to find the Bladecenter/Enclosure name of Blade

You got a blade server details to work with and you need to find the enclosure name and details, the blade installed in, how ?

How to find iLO MAC address for BladeCenter/Enclosure

How To Download RHEL8 for Free

Red Hat Enterprise Linux 8 (RHEL) is the most well known enterprise Linux distribution and also famous for it’s world class support system. As we all know, RHEL is distributed and sup...

ComVault Simpana Installation (cv11) on Linux (RHEL7)- Step by Step

This is a very basic article to share the cv11 installation. If any corrections/mistakes, please feel free to feedback as I am not an expert on this item.

Update Dell iDRAC Firmware via Web GUI

We have experienced that, due to iDRAC firmware issues there will be so many connections issues on Dell remote access and one of the time-consuming problem is opening java based “Virt...

How to Find the HBA/Fibre Channel Cards, Ports and WWN in Linux

Find HBA/Fibre Channel Card installed

How To Configure Minicom For Serial Console Connections

Those who work with infrastructure/server deployment knows how difficult it is to get a console for those devices having no display like switches, routers and a blade chassis/enclosur...

4 Websites You Can Use For Subnet Calculation

You might be a System Administrator, Developer, Infra Designer, Architect or a Capacity Manager by role, but getting quick information on your VLAN or available subnet is always a hea...

How to get or set iLO details from Linux and Windows (when you lost iLO access)

As an sysadmin, its always headache to deal with remote systems as rely on remote consoles (HP iLO, Dell iDRAC etc) for servers to access in case there is an issue on server access. A...

Upgrade HPE iLO from Linux Command Line

Subnet Mask Information – Quick Reference Sheet

AddressBitsPrefNetMask1 0/32255.255.255.2552 1/31255.255.255.2544 2/30255.255.255.2528 3/29255.255.255.24816 4/28255.255.255.24032 5/27255.255.255.22464 6/26255.255.255.192128 7/25255...

How to check CPU count information (LUX)

Quick methods to check.

Register in RHN after installation

There are many situations where we need to register the host/server to RHN server manually, due to network issues, bad certificate/authentication or time difference on the host during...

How to Check Linux/Unix Operating System Version, Maintenance Level, Architecure

We can identify the Unix Operating System architecture by uname or arch command. Try below examples.

dmidecode – best usages [updated]

Check Hyper-threading (Virtualization) available or not

UNIX / Linux shutdown Commands

Shutdown the machine immediately

Check MD5 in windows using fciv

The File Checksum Integrity Verifier (FCIV) is a command-prompt utility that computes and verifies cryptographic hash values of files. FCIV can compute MD5 or SHA-1 cryptographic has...

How to find the Bladecenter/Enclosure name of Blade

You got a blade server details to work with and you need to find the enclosure name and details, the blade installed in, how ?

How to find iLO MAC address for BladeCenter/Enclosure

Check MD5 in windows using fciv

The File Checksum Integrity Verifier (FCIV) is a command-prompt utility that computes and verifies cryptographic hash values of files. FCIV can compute MD5 or SHA-1 cryptographic has...

Register in RHN after installation

There are many situations where we need to register the host/server to RHN server manually, due to network issues, bad certificate/authentication or time difference on the host during...

UNIX / Linux shutdown Commands

Shutdown the machine immediately

How to Check Linux/Unix Operating System Version, Maintenance Level, Architecure

We can identify the Unix Operating System architecture by uname or arch command. Try below examples.

How to Reset an HPE Blade iLO to factory default

During a bulk deployment you noticed that, one of the HPE blade iLO in an HPE c7000 enclosure is not responding properly or configurations are not correct. And even after hours of inv...

4 Websites You Can Use For Subnet Calculation

You might be a System Administrator, Developer, Infra Designer, Architect or a Capacity Manager by role, but getting quick information on your VLAN or available subnet is always a hea...

Subnet Mask Information – Quick Reference Sheet

AddressBitsPrefNetMask1 0/32255.255.255.2552 1/31255.255.255.2544 2/30255.255.255.2528 3/29255.255.255.24816 4/28255.255.255.24032 5/27255.255.255.22464 6/26255.255.255.192128 7/25255...

How to create a partition greater than 2TB in Linux

Due to limitation of fdisk utility, you will not be able to create partition greater than 2TB in linux with fdisk. This is a quick example to show how to create a bigger partition usi...

How to Find the HBA/Fibre Channel Cards, Ports and WWN in Linux

Find HBA/Fibre Channel Card installed

Gmail redesigned, what are the new features ?

Gmail has revamped their web interface with awesome look and also added new features. Already changed the default font to “Roboto”, which is Google’s standard font for most of their s...

Email Management – Quick Tips

Email Management – Quick Tips

Email Management – Quick Tips

How To Add Custom Modules In Ansible

Image : bsbgroup.com/ Okay, we all know Ansible installation is coming with default modules and you don’t need to download or configure any additional modules for normal cases, Yes b...

Sending Email Using Python and smtplib – Quick HowTo

Image Courtesy : www.telegraph.co.uk

Quick Hardware Collection Script for HP C7000 Enclosure

Since I am playing with so many HP bladecenters daily, it was bit difficult to do quick hardware checks whenever there is an issue. So I have wrote some quick loops and test scripts f...

How To Recover HP C7000 Enclosure OA Access (BladeCenter)

Read How To Recover HP C7000 Enclosure OA Access (BladeCenter).

How To Recover HP C7000 Enclosure OA Access (BladeCenter)

Read How To Recover HP C7000 Enclosure OA Access (BladeCenter).

Book Review: AWS for Solutions Architects, Second Edition

This hefty but informative book, “ AWS for Solutions Architects, Second Edition ,” by Saurabh Shrivastava, Neelanjali Srivastav, Alberto Artasanchez, and Imtiaz Sayed, was a valuable ...

Book Review: Mastering AWS CloudFormation

Looking to take your AWS CloudFormation expertise to the next level? I recently finished reading “ Mastering AWS CloudFormation ” by Karen Tovmasyan , and let me tell you, it’s a game...

Installing Ansible Automation Platform with AWS RDS and SSL Encryption

In today’s rapidly evolving IT landscape, automation is the key to streamlining operations and achieving efficiency. Red Hat® Ansible® Automation Platform (AAP) is a comprehensive sol...

Book Review: Mastering Elastic Kubernetes Service on AWS

“Mastering Elastic Kubernetes Service on AWS” by Malcolm Orr and Yang-Xin Cao is a gem for anyone looking to dive headfirst into the world of Kubernetes on Amazon Web Services. This b...

Managing Containers at AWS – Unveiling the Perfect Services for Your Use Cases

Introduction

How To Get Hands-On Experience in AWS

Every Time you have the same situation, you know the technology and maybe you are already a certified professional in that technology, but you are not getting enough hands-on on that ...

AWS Summit Singapore 2019

This year AWS Summit Singapore will happen on April 10–11, 2019 at Singapore Expo Convention & Exhibition Centre. AWS is introducing a new session called TechFest on April 10, a ...

How to Install and Configure AWS Command Line Interface (CLI)

The AWS Command Line Interface (CLI) is a unified tool to manage your AWS services. With just one tool to download and configure, you can control multiple AWS services from the comman...

AWS Certified Solution Architect – Associate – Learning Path and Certification

I used to get a  lot of queries on AWS learning path and exam preparation procedures via emails or chats. Honestly I am not an expert (now) to advise on which track you need to follow...

How To Check Your Resource Usage in AWS Free Tier

Okay, you are in a learning path for AWS (Amazon Web Services) cloud services and you want to get your hands dirty. As we all know, AWS is offering a free tier usage of 1 year with li...

Save 30% on KubeCon + CloudNativeCon North America 2025 Tickets!

Are you into Kubernetes, cloud native tech, or open source in general? Then mark your calendar: KubeCon + CloudNativeCon North America 2025 is happening from November 10–13, 2025 in A...

Best Kubernetes Monitoring & Observability Tools (Updated)

Kubernetes has defined the standard for container orchestration, and it enables organizations to manage applications at scale. However, monitoring and observability become increasingl...

Promo – Get 30% Off on KubeCon + CloudNativeCon Europe 2025 Tickets!

Are you excited about cloud native technologies? If so, mark your calendars for KubeCon + CloudNativeCon Europe 2025 happening from April 1-4 in London ! This is the Cloud Native Comp...

Promo: Get Up to $430 Off on KubeCon + CloudNativeCon North America 2024 Tickets

Are you passionate about cloud native technologies? If so, the Cloud Native Computing Foundation’s (CNCF) flagship event KubeCon + CloudNativeCon North America 2024 is where you need ...

Book Review: Mastering Amazon EC2

Mastering Amazon EC2 by Badri Kesavan is an excellent resource for anyone looking to dive deep into Amazon EC2. Badri, who is highly active in the AWS user group communities as an org...

How to Use Pod Failure Policy in Kubernetes

Introduction

Testing Kubernetes 1.31 with minikube: A Step-by-Step Guide for multi-node cluster

In this guide, we’ll explore how to set up and test the latest Kubernetes 1.31 using minikube. We’ll create a 3-node cluster with specific configurations to provide a robust local dev...

Book Review: Solutions Architect-s Handbook, Third Edition

I recently finished the Solutions Architect’s Handbook, third edition , by Saurabh Shrivastava and Neelanjali Srivastav, and I must say, it’s a treasure trove for anyone in the field....

Book Review: AWS for Solutions Architects, Second Edition

This hefty but informative book, “ AWS for Solutions Architects, Second Edition ,” by Saurabh Shrivastava, Neelanjali Srivastav, Alberto Artasanchez, and Imtiaz Sayed, was a valuable ...

Book Review: Mastering AWS CloudFormation

Looking to take your AWS CloudFormation expertise to the next level? I recently finished reading “ Mastering AWS CloudFormation ” by Karen Tovmasyan , and let me tell you, it’s a game...

Running Multiple Kubernetes Playgrounds: Your Guide to Minikube Magic!

Have you ever wanted to experiment with Kubernetes, but felt a little intimidated by setting up a complex cluster? Well, fear not! minikube comes to the rescue, allowing you to run yo...

Book Review: Mastering Elastic Kubernetes Service on AWS

“Mastering Elastic Kubernetes Service on AWS” by Malcolm Orr and Yang-Xin Cao is a gem for anyone looking to dive headfirst into the world of Kubernetes on Amazon Web Services. This b...

Book Review: -Python Essentials for AWS Cloud Developers-

“ Python Essent ials for AWS Cloud Developers ” is a straightforward and practical guide for those looking to harness the power of Python within the AWS ecosystem. Authored by Serkan ...

Book Review: -Technology Operating Models for Cloud and Edge-

Authors: Ahilan Ponnusamy and Andreas Spanner

Book Review: -Architecture and Design of Linux Storage Stack-

Author: Muhammad Umer

Book Review: -Mastering Kubernetes Fourth Edition- by Gigi Sayfan

Mastering Kubernetes Fourth Edition” is an exceptional guide that takes readers on a comprehensive journey through the world of Kubernetes. Authored by Gigi Sayfan and published by Pa...

Managing Containers at AWS – Unveiling the Perfect Services for Your Use Cases

Introduction

ChatGPT and Beyond: Why Continuous Learning is Critical for IT Professionals

ChatGPT is an advanced technology that has been making waves in the field of conversational AI. Developed by OpenAI, ChatGPT is a large language model that is capable of generating hu...

How To Ask Technical Questions

Skip unnecessary introductions like “Hello, how are you?” and get straight to the point by briefly describing your issue and the technology involved.

Top 15 Free Kubernetes Courses

Kubernetes is the de-facto platform for organisations to host their applications and the old “Systems Engineer” job has been re-designed with the requirement of Kubernetes skillset; m...

Up to 5 Microsoft Fundamentals Certifications at no cost!

A few weeks ago, I have shared about free AZ-900 and SC-900 certifications and I came to know that, you can get up to 5 Microsoft fundamental certifications at no cost.

Why is Kubernetes certification so important ? 5 reasons I noticed

Did you ever wonder when people post their certification victories with CKA , CKAD or CKS badges ? Why are these certifications so important and why are system engineers and devops pr...

How to get Microsoft Certifications AZ-900 and SC-900 at no cost !

You might have great plans 2022 already but check this opportunity from Microsoft to get their foundation certifications at no cost. Microsoft Azure is one of the top cloud service pr...

Multi-node Kubernets Cluster in 10 minutes

If you have credits on Public cloud accounts, then you can use managed Kubernetes services such as GKE , AKS , EKS etc. But building self-hosted Kubernetes clusters are not straightfo...

OpenShift Operators (Kubernetes Operators)

Welcome back to the OpenShift BootCamp series.

OpenShift Architecture

Welcome back to the OpenShift BootCamp series .

Kubernetes vs OpenShift – 15 Facts You Should Know

Welcome back to the OpenShift Bootcamp series. In this article we will see the difference between Kubernetes and OpenShift . Please note, during the course, when I say OpenShift it me...

What is OpenShift

Welcome back to the OpenShift BootCamp series. In this article you will  learn what OpenShift is and why we are using OpenShift. We will also learn the features of OpenShift compared ...

Top 5 Free Resources to Learn Docker

Photo by Tom Fisk from PexelsSomeone told me last time, he knows kubernetes and he is using kubernetes in his organisation. But he missed to understand the basic concepts of docker an...

How To Create And Use NAT Network In VirtualBox

Photo by Brett Sayles from Pexels

What is Hosted OpenShift Cluster

Photo by Belle Co from PexelsRed Hat OpenShift is the well known enterprise Kubernetes distribution and it is a platform with ready-to use features, compared to the default Kubernetes...

5 Mistakes You Should Avoid During Kubernetes Exam

Photo by Andrea Piacquadio from PexelsRead this article if you are planning to attend any of the Kubernetes exams in the near future. Because many shared in the forums or chat groups ...

How To Get Hands-On Experience in AWS

Every Time you have the same situation, you know the technology and maybe you are already a certified professional in that technology, but you are not getting enough hands-on on that ...

Configure Your Windows Host to be Managed by Ansible

I was talking to my friend about Ansible automation and how we are implementing automated solutions for cloud and on-premise infrastructure. Then he told me that, his team is looking ...

Deploying Kubernetes with Kubespray

Photo by Tom Fisk from Pexels

How to Increase Attachment File Size Limit in GitLab

We know GitLab is one of the best and easy to use git server solutions available in the market now. And GitLab CE is available as free and we can simply spin up a VM and set up our ow...

HashiCorp Certified Terraform Associate – Learning & Exam Tips

Introduction

How to Install VMWare vCenter Server Appliance

When we talk about virtualization, VMWare is one of the best choice and most popular in town. You can download VMware vSphere Hypervisor 6.7 for FREE and install on bare metal servers...

Start Your OpenShift Journey with these Free Red Hat Training Programs

#Red Hat OpenShift Container Platform is one of the best kubernetes platform for enterprises. As we know kubernetes and OpenShift are multi-component stack and not easy to learn witho...

Installing oVirt 4 with Self-Hosted Engine on Enterprise Linux

(Image by [@tvick)](https://unsplash.com/@tvick)/[unsplash](https://unsplash.com/)) oVirt is one of the best free and open-source virtualization solution with enterprise level featur...

How to Create Scheduled Snapshots in Google Cloud Platform

Yes, your server and data are on cloud, but to avoid the risk of unexpected data loss still you need to follow standard backup mechanisms provided by cloud providers like snapshots or...

How to Request Resource Quota Increase in Microsoft Azure

As we know public cloud is offering unlimited* amount of resources and as an end user of public cloud we don’t need to worry about the backend resources. But, there are few facts to c...

Adding Container Images to Google Container Registry (GCR)

Image : cloud.google.comGoogle Container Registry (GCR) is a service in Google Cloud Platform (GCP) to manage your own docker container repository. This is fully managed service and y...

Ansible Tower – How to Backup and Restore

Image Background : datafloq.comAnsible Tower is a wonderful product which help to implement a central hub for IT automation. Ansible Tower is basically a web console and REST API for ...

Configure TLS Encrypted Tunnel For Remote Logs Using Syslog-ng

You might be a Sysadmin, developer, DBA or whatever, logs are like treasure boxes for anyone working in IT. And the best practice to keep logs in a central location together with loca...

HTTP Status Codes- Quick Reference

Image : https://www.sharesight.comYou are browsing some sites or testing your own web applications, and suddenly you receive a white screen with some error number ! No worries, if you...

Sending Email Using Python and smtplib – Quick HowTo

Image Courtesy : www.telegraph.co.uk

AWS Summit Singapore 2019

This year AWS Summit Singapore will happen on April 10–11, 2019 at Singapore Expo Convention & Exhibition Centre. AWS is introducing a new session called TechFest on April 10, a ...

How to delete a pod with Terminating state in OpenShift or Kubernetes Cluster

Image Courtesy : https://www.maritime-executive.comThere might be situations where you have already deleted pods (or already removed dc aka deployment configuration) but pods are stuc...

Google Cloud Global Digital Conference – Jan 24

Google Cloud is arranging Global Digital Conference on 24th January 2019 .

How to Fix a Failed PV in OpenShift Cluster

Image : https://premierevanlines.comThere are several cases a PV (PersistentVolume) appear as Failed in OpenShift or Kubernetes cluster. Once of the reason is wrong ClaimRef by which ...

OpenShift Cluster – How to Drain or Evacuate a Node for Maintenance

Image : www.oemoffhighway.comAs we know OpenShift clusters are bundled with multiple compute nodes, master nodes, infra nodes etc, it’s not a big deal to manage node maintenance for O...

OpenShift Container Platform 3.11 Installation Documents

Since OCP 3.11 is available now, you may refer below documents for OpenShift Container Platform 3.11 Installation on different infrastructure or platforms. Those are very quick docume...

How to Create, Increase or Decrease Project Quota in OpenShift

Image Credit : https://www.joc.comUsually application owner or project owner will specify the quota settings (Memory and CPU) during project creation. But sometimes, they realize that...

How to find the pod details from container in OpenShift

When we have issue with container and we are not sure which pod the container belongs to; we can find the pods details as below.

Installing Python Modules in Disconnected Environments

Installing a python module or package (any applications) is very easy if you have internet connection and access to public repo or private repo.

Ansible Nested Loop with List and Dictionary

Ansible loops are simple and powerful with mixed data. You will sure say “awesome” when you realize the easiness with loops.

How to setup SSH key based authentication

In an automated IT world, password-based authentications are not a good choice and will restrict so many abilities. For SSH access, you can easily configure SSH Key based authenticati...

How to Install and Configure AWS Command Line Interface (CLI)

The AWS Command Line Interface (CLI) is a unified tool to manage your AWS services. With just one tool to download and configure, you can control multiple AWS services from the comman...

AWS Certified Solution Architect – Associate – Learning Path and Certification

I used to get a  lot of queries on AWS learning path and exam preparation procedures via emails or chats. Honestly I am not an expert (now) to advise on which track you need to follow...

How To Check Your Resource Usage in AWS Free Tier

Okay, you are in a learning path for AWS (Amazon Web Services) cloud services and you want to get your hands dirty. As we all know, AWS is offering a free tier usage of 1 year with li...

How To Check Your Resource Usage in AWS Free Tier

Okay, you are in a learning path for AWS (Amazon Web Services) cloud services and you want to get your hands dirty. As we all know, AWS is offering a free tier usage of 1 year with li...

AWS Certified Solution Architect – Associate – Learning Path and Certification

I used to get a  lot of queries on AWS learning path and exam preparation procedures via emails or chats. Honestly I am not an expert (now) to advise on which track you need to follow...

How To Configure Minicom For Serial Console Connections

Those who work with infrastructure/server deployment knows how difficult it is to get a console for those devices having no display like switches, routers and a blade chassis/enclosur...

Gmail redesigned, what are the new features ?

Gmail has revamped their web interface with awesome look and also added new features. Already changed the default font to “Roboto”, which is Google’s standard font for most of their s...

Gmail redesigned, what are the new features ?

Gmail has revamped their web interface with awesome look and also added new features. Already changed the default font to “Roboto”, which is Google’s standard font for most of their s...

Red Hat Remote Exams – Everything you need to know

We all know Red Hat certifications are valuable, especially when it comes to job hunting. They’re not just theory-based—they test your real skills. Unlike many other IT exams that are...

How to Install GitLab in a Disconnected Environment

GitLab is an open source DevOps platform with functionalities such as Git server, CI/CD, DevSecOps and many other features. You can use hosted service at gitlab.com or you can install...

How To Housekeep Your Vagrant Boxes

Photo by [cottonbro](https://www.pexels.com/@cottonbro?utm_content=attributionCopyText&utm_medium=referral&utm_source=pexels) from Pexels

How To Download RHEL8 for Free

Red Hat Enterprise Linux 8 (RHEL) is the most well known enterprise Linux distribution and also famous for it’s world class support system. As we all know, RHEL is distributed and sup...

How to Request Resource Quota Increase in Microsoft Azure

As we know public cloud is offering unlimited* amount of resources and as an end user of public cloud we don’t need to worry about the backend resources. But, there are few facts to c...

Configure TLS Encrypted Tunnel For Remote Logs Using Syslog-ng

You might be a Sysadmin, developer, DBA or whatever, logs are like treasure boxes for anyone working in IT. And the best practice to keep logs in a central location together with loca...

HTTP Status Codes- Quick Reference

Image : https://www.sharesight.comYou are browsing some sites or testing your own web applications, and suddenly you receive a white screen with some error number ! No worries, if you...

Boot from image using vFlash in Dell PowerEdge Servers

Dell iDRAC is a feature-full server remote administration tool but iDRAC is missing the very basic functionality to boot from a ftp or http based ISO image. (With an HPE server, you c...

How to Find the HBA/Fibre Channel Cards, Ports and WWN in Linux

Find HBA/Fibre Channel Card installed

How to install racadm for iDRAC on RHEL / Linux

Dell has a beautiful tool for remote server management called iDRAC which is almost same like HPE iLO, but with different features. You can access iDRAC using GUI or via ssh. But what...

How To Create A New User In iDRAC Via Local RACADM From Linux

There might be situations like you forgot or lost your iDRAC login credentials and you don’t have an option to access iDRAC since the server is in a remote location. Using local RACAD...

Enable newly installed vFlash card in Dell iDRAC

I have explained how to to use vFlash card as an easy boot method here . If you are not able to see a vFlash card (or vFlash card tab is missing in iDRAC screen GUI), then it might be...

Update Dell iDRAC Firmware via Web GUI

We have experienced that, due to iDRAC firmware issues there will be so many connections issues on Dell remote access and one of the time-consuming problem is opening java based “Virt...

Boot from image using vFlash in Dell PowerEdge Servers

Dell iDRAC is a feature-full server remote administration tool but iDRAC is missing the very basic functionality to boot from a ftp or http based ISO image. (With an HPE server, you c...

Dynamic Inventory in Ansible Controller: Use an Inventory File as a Source

Ansible’s inventory plays a crucial role in defining the infrastructure you manage. It holds information about your hosts, such as their names, variables, and IP addresses. Traditiona...

Ansible Automation Platform 1.2 to 2 Migration Guides

Image Source: [ansible.com/blog](https://www.ansible.com/blog/new-reference-architecture-red-hat-ansible-automation-platform-1.2-to-2-migration-guide)This is a living document where t...

How to pass extra variables to an Ansible playbook

With Ansible, users have the flexibility to accept external input while executing their Ansible playbooks without changing the Ansible playbook content. This can be done via the abili...

How to open WinRM ports in the Windows firewall

You might already knew that, Ansible can manage Windows servers as well. And this is a supporting article for Configure Your Windows Host to be Managed by Ansible .

Use Terraform to Create a FREE Ansible Lab in AWS

Introduction

Build Your Own Git Server using Gogs

When it comes to VCS ( Version Control System ), we will have confusion as we have many products in the market with almost the same capabilities. When we think about enterprise-level ...

Managing Ansible Facts

Ansible facts are nothing but some variables which are automatically discovered by the Ansible on managed hosts while running ansible adhoc commands or playbooks.

Managing Ansible Variables

Ansible Variables

Implementing Ansible Roles

In a production environment, we will have hundreds and thousands of different types machines to handle. Hence the type of operations and implementation methods will be different from ...

Deploying Roles With Ansible Galaxy

So you have learned about Ansible Roles and the importance of using roles. Ansible Galaxy is a public library where you can find thousands of roles written by other ansible users and ...

Play with Ansible Playbooks

Plays are ordered set of tasks to execute against host selections from your inventory. A playbook is a file containing one or more plays.

Running Ansible Ad-Hoc commands

We have already  run few ad-hoc command to list down the hosts in earlier sections.

Managing Ansible Inventory

Inventory File

Ansible Deployment

Hope you are clear on the concept and installation of Ansible program. Lets configure our Ansible environment now.

Installing Ansible

You may refer installation doc from official document as well.

Ansible Introduction

You have hundreds and thousands of online documentation and wiki pages for learning Ansible , and this is our attempt to cover Ansible in a simple and beginner level approach.

Ansible Automation for Absolute Beginners – Free Course

Are you new to the world of automation and eager to unlock the power of Ansible? You’re in the right place! In our quest to make Ansible accessible to absolute beginners, we’re thrill...

Ansible Capacity Planning: Ansible contol node and automation controller

When you’re running automation at scale, whether it’s using Ansible contol node or Ansible Automation Platform (AAP) with its automation controller , understanding how to plan your en...

Book Review: Mastering the Red Hat Certified Engineer (RHCE) Exam

Luca Berton is a known personality in the community for his work on Ansible . He has written many best-selling books, such as Ansible for VMware by Examples, Ansible for Kubernetes by...

Where Should You Keep Your Ansible Collection?

Simplifying Automation with Organized Collections

Running PostgreSQL Instances as Containers with Podman

PostgreSQL is a powerful, open-source relational database system widely used in modern applications. Running PostgreSQL as a container offers a range of benefits, particularly when us...

Book Review: Mastering GitHub Actions

If you’re like me and started your CI/CD journey with bash scripts, you’ll appreciate how far the tools have come. Back then, we had to rely on multiple scripts to get things done. To...

Install Ansible AWX on Kubernetes

Ansible AWX is the upstream project for the Ansible automation controller (Part of Red Hat Ansible Automation Platform). It offers a web-based user interface, REST API, and a task eng...

Integrating Ansible with OpenShift & Kubernetes

This article explores how the Ansible Automation Platform integrates with OpenShift to create a powerful automation solution for modern, efficient IT operations.

How to Change Admin Password in Ansible Automation Platform on OpenShift

Introduction

Multi-Level Approvals in Ansible Automation Controller: A Workaround

Ansible Automation Controller streamlines IT tasks through automation. A key component of this power lies in workflows . These workflows allow you to orchestrate a sequence of dispara...

Integrating Ansible Automation Platform with CyberArk Password Vault to retrieve credentials

Introduction

Integrating Ansible Automation Controller with Splunk

Do you use Red Hat Ansible Automation Controller to manage your IT infrastructure? Keeping track of what’s happening behind the scenes is crucial. This blog post will show you how to ...

Book Review: Terraform Cookbook, Second Edition

As I shared last week, I’m currently on paternity leave, juggling late-night feedings and diaper changes with the joys of fatherhood. While carving out quiet time for myself has been ...

Mastering Tekton: Your Guide to Cloud-Native CI/CD Workflows

What is Tekton

Installing Ansible Automation Platform with AWS RDS and SSL Encryption

In today’s rapidly evolving IT landscape, automation is the key to streamlining operations and achieving efficiency. Red Hat® Ansible® Automation Platform (AAP) is a comprehensive sol...

Ansible in DevOps – Knowledge Sharing and Book Giveaway!

Do you want to boost your automation skills and learn more about Ansible? Then, you’re in for a treat! We’ve got an exciting event coming up that you won’t want to miss.

How to Utilize Ansible Collection from a Git Server with Ansible Automation Controller

In the ever-evolving landscape of IT automation, Ansible has become a cornerstone for many organizations. One of the strengths of Ansible is its ability to modularize and distribute c...

GitOps vs. CI/CD – Understanding the Key Differences

GitOps and CI/CD (Continuous Integration/Continuous Deployment) are two distinct but related concepts in the realm of software development and deployment. They both play a crucial rol...

The Significance of Automation in DevOps: Streamlining Success

Introduction

Embracing the ChatGPT and AI Era: Thriving in the Future of Work

Living in the ChatGPT and AI era can indeed bring concerns about job security, but there are several ways to navigate this changing landscape without worrying excessively about losing...

Why ChatGPT is Not Ideal for Generating Ansible Playbooks

Ansible is a popular automation tool used in IT operations and DevOps to manage infrastructure and automate repetitive tasks. It is designed to be simple and easy to use, even for tho...

5 ways DevOps engineers can use ChatGPT

Introduction

How To Pass Environment Variables to Ansible Navigator

ansible-navigator is the new command line utility (CLI) introduced in Ansible Automation Platform 2, for running and developing Ansible automation content. ansible-navigator can be us...

How To Ask Technical Questions

Skip unnecessary introductions like “Hello, how are you?” and get straight to the point by briefly describing your issue and the technology involved.

How to build Ansible execution environment images for unconnected environments

Create a defined, consistent and portable environment for executing automation jobs on air-gapped or disconnected systems .

Learn Ansible – A Comprehensive Guide for Courses and Exams

Introduction

Learn OpenShift – A Comprehensive Guide for OpenShift Courses and Exams

Introduction

How to pass extra variables to an Ansible playbook

With Ansible, users have the flexibility to accept external input while executing their Ansible playbooks without changing the Ansible playbook content. This can be done via the abili...

How to send email using Ansible and Gmail

As part of your automation jobs, you can implement email notifications from Ansible itself instead of manually drafting and sending emails. Ansible mail module is simple and easy to u...

How To Add Or Change GitLab Data Storage Path

I have explained How to Install GitLab in a Disconnected Environment in a past article. In this article you will learn how to configure custom storage path for your GitLab servers.

Configure Custom SSL to Secure GitLab Server

I have explained How to Install GitLab in a Disconnected Environment in a past article. In this article you will learn how to use self-signed or custom SSL certificates to secure your...

How to Install GitLab in a Disconnected Environment

GitLab is an open source DevOps platform with functionalities such as Git server, CI/CD, DevSecOps and many other features. You can use hosted service at gitlab.com or you can install...

Ansible Navigator Cheat Sheet

What is ansible-navigator

Ansible Convert List to String

I noticed many users are using different and wrong methods to convert a list data to string format. You can use existing filters and functions in Ansible to achieve the same.

Configure Red Hat Satellite Content Host with Remote Execution

Using Red Hat Satellite is a great way to manage your RHEL servers and contents including updating, patching or installing software packages. A new method for remote content managemen...

How to Register Content Host to Red Hat Satellite

A host is any virtual or physical Linux client that Red Hat Satellite manages. You have different ways to register a content host in Red Hat Satellite; either using the activation key...

Ansible for Windows – Troubleshooting

Managing Windows machines using Ansible is pretty straightforward and simple as in the document. You need to configure and enable WinR M on your Windows machine and then open WinRM po...

How to open WinRM ports in the Windows firewall

You might already knew that, Ansible can manage Windows servers as well. And this is a supporting article for Configure Your Windows Host to be Managed by Ansible .

How to set up and use Python virtual environments for Ansible

It’s vital to test new technology before rolling it out into your production environment. I like to use Python virtual environments provided by the venv module for developing and test...

How To Housekeep Your Vagrant Boxes

Photo by [cottonbro](https://www.pexels.com/@cottonbro?utm_content=attributionCopyText&utm_medium=referral&utm_source=pexels) from Pexels

Installing a Kubernetes Cluster using minikube

Photo by Eva Elijas from Pexelsminikube is the easiest method to deploy a Kubernetes cluster for testing purpose. You can simply spin up a cluster in minutes on your laptop or worksta...

Use Terraform to Create a FREE Ansible Lab in AWS

Introduction

How to Create a FREE Ansible Lab in Public Cloud (AWS, GCP, Azure)

Introduction

How to install an Ansible Collection on a disconnected Ansible control node

In this tutorial, I demonstrate how and where to install Ansible Content Collections in an Ansible control node that has no internet access. The process is simple and straightforward,...

DevOps Engineer Skills – Most Demanding DevOps Skills You Should Learn in 2021

Introduction

System Reboot with Ansible Reboot Module

A reboot operation in a Linux Operating System is very rare as most of the time we can achieve the result by individual service restart or reload after configuration changes or packag...

Getting Started with Ansible Collections

Ansible Collection is a great way of getting content contributions from various Ansible Developers. Earlier there was a tagline for Ansible – “Batteries included”, but now the battery...

Configure Your Windows Host to be Managed by Ansible

I was talking to my friend about Ansible automation and how we are implementing automated solutions for cloud and on-premise infrastructure. Then he told me that, his team is looking ...

Remove nodes from Kubespray Managed Kubernetes Cluster

Kubespray is a combination of Ansible and Kubernetes and you can use Kubespray for deploying production ready Kubernetes clusters.

Adding new nodes to Kubespray Managed Kubernetes Cluster

Kubespray is a combination of Ansible and Kubernetes and you can use Kubespray for deploying production ready Kubernetes clusters.

Deploying Kubernetes with Kubespray

Photo by Tom Fisk from Pexels

How to Increase Attachment File Size Limit in GitLab

We know GitLab is one of the best and easy to use git server solutions available in the market now. And GitLab CE is available as free and we can simply spin up a VM and set up our ow...

How to Import Existing VMWare VM-s into Terraform

Terraform is an amazing tool for your infrastructure automation. Everything about your infrastructure can be write as code and maintain by team; means your infrastructure is transpare...

Connecting Ansible Tower to Git Server with Self Signed Certificates

So many questioned me when I mention git server in an Ansible Tower environment; and later I realized that, most of them are keeping their projects inside Ansible Tower !!!

HashiCorp Certified Terraform Associate – Learning & Exam Tips

Introduction

Ansible Automates 2020 on 9th & 10th September

Another good news during this unusual time as Ansible Automate 2020 is a Virtual Event this year and we all will get the chance to attend the same from our office or home.

ansible-tower-service, Start or Stop Ansible Tower

Image: rockwellcollins.com | 01 Jan 2000 — Hand on throttle — Image by © Firefly Productions/CORBIS Learn Ansible : Automation with Ansible – All You Want to Learn

How To Add Custom Modules In Ansible

Image : bsbgroup.com/ Okay, we all know Ansible installation is coming with default modules and you don’t need to download or configure any additional modules for normal cases, Yes b...

How to Create Scheduled Snapshots in Google Cloud Platform

Yes, your server and data are on cloud, but to avoid the risk of unexpected data loss still you need to follow standard backup mechanisms provided by cloud providers like snapshots or...

Build Your Own Git Server using Gogs

When it comes to VCS ( Version Control System ), we will have confusion as we have many products in the market with almost the same capabilities. When we think about enterprise-level ...

Adding Container Images to Google Container Registry (GCR)

Image : cloud.google.comGoogle Container Registry (GCR) is a service in Google Cloud Platform (GCP) to manage your own docker container repository. This is fully managed service and y...

Ansible Tower – How to Backup and Restore

Image Background : datafloq.comAnsible Tower is a wonderful product which help to implement a central hub for IT automation. Ansible Tower is basically a web console and REST API for ...

Managing Ansible Facts

Ansible facts are nothing but some variables which are automatically discovered by the Ansible on managed hosts while running ansible adhoc commands or playbooks.

Managing Ansible Variables

Ansible Variables

How to delete a pod with Terminating state in OpenShift or Kubernetes Cluster

Image Courtesy : https://www.maritime-executive.comThere might be situations where you have already deleted pods (or already removed dc aka deployment configuration) but pods are stuc...

Ansible and Jenkins integration – Red Hat Webinar

Join this Red Hat webinar to see how to use Jenkins pipelines to deploy simple applications using Ansible Tower.

OpenShift Cluster – How to Drain or Evacuate a Node for Maintenance

Image : www.oemoffhighway.comAs we know OpenShift clusters are bundled with multiple compute nodes, master nodes, infra nodes etc, it’s not a big deal to manage node maintenance for O...

OpenShift Container Platform 3.11 Installation Documents

Since OCP 3.11 is available now, you may refer below documents for OpenShift Container Platform 3.11 Installation on different infrastructure or platforms. Those are very quick docume...

How to Create, Increase or Decrease Project Quota in OpenShift

Image Credit : https://www.joc.comUsually application owner or project owner will specify the quota settings (Memory and CPU) during project creation. But sometimes, they realize that...

How to find the pod details from container in OpenShift

When we have issue with container and we are not sure which pod the container belongs to; we can find the pods details as below.

Installing Python Modules in Disconnected Environments

Installing a python module or package (any applications) is very easy if you have internet connection and access to public repo or private repo.

Ansible Nested Loop with List and Dictionary

Ansible loops are simple and powerful with mixed data. You will sure say “awesome” when you realize the easiness with loops.

Implementing Ansible Roles

In a production environment, we will have hundreds and thousands of different types machines to handle. Hence the type of operations and implementation methods will be different from ...

Deploying Roles With Ansible Galaxy

So you have learned about Ansible Roles and the importance of using roles. Ansible Galaxy is a public library where you can find thousands of roles written by other ansible users and ...

Play with Ansible Playbooks

Plays are ordered set of tasks to execute against host selections from your inventory. A playbook is a file containing one or more plays.

Setup Vim editor for YAML, Ansible, Kubernetes, OpenShift

Are you new to Vim and working with YAML files? This post is for you! If you’re already a Vim expert, feel free to skip this quick guide.

How to setup SSH key based authentication

In an automated IT world, password-based authentications are not a good choice and will restrict so many abilities. For SSH access, you can easily configure SSH Key based authenticati...

Running Ansible Ad-Hoc commands

We have already  run few ad-hoc command to list down the hosts in earlier sections.

Managing Ansible Inventory

Inventory File

Ansible Deployment

Hope you are clear on the concept and installation of Ansible program. Lets configure our Ansible environment now.

Installing Ansible

You may refer installation doc from official document as well.

Ansible Introduction

You have hundreds and thousands of online documentation and wiki pages for learning Ansible , and this is our attempt to cover Ansible in a simple and beginner level approach.

Ansible Automation for Absolute Beginners – Free Course

Are you new to the world of automation and eager to unlock the power of Ansible? You’re in the right place! In our quest to make Ansible accessible to absolute beginners, we’re thrill...

Mastering Tekton: Your Guide to Cloud-Native CI/CD Workflows

What is Tekton

10 Free Courses to Learn Terraform

Terraform is a great tool for deploying and managing your IT infrastructure. This is a free and open-source tool developed by HashiCorp. If you want to learn Terraform, there are hund...

Start your Linux journey with free Linux training courses

If you are new to Linux, then learning some of the tools (especially opensource tools) will be difficult as many of them are only available for Linux or natively running on Linux. And...

Ansible Automation for Absolute Beginners – Free Course

Are you new to the world of automation and eager to unlock the power of Ansible? You’re in the right place! In our quest to make Ansible accessible to absolute beginners, we’re thrill...

Ansible Capacity Planning: Ansible contol node and automation controller

When you’re running automation at scale, whether it’s using Ansible contol node or Ansible Automation Platform (AAP) with its automation controller , understanding how to plan your en...

Book Review: Mastering the Red Hat Certified Engineer (RHCE) Exam

Luca Berton is a known personality in the community for his work on Ansible . He has written many best-selling books, such as Ansible for VMware by Examples, Ansible for Kubernetes by...

Where Should You Keep Your Ansible Collection?

Simplifying Automation with Organized Collections

Install Ansible AWX on Kubernetes

Ansible AWX is the upstream project for the Ansible automation controller (Part of Red Hat Ansible Automation Platform). It offers a web-based user interface, REST API, and a task eng...

Integrating Ansible with OpenShift & Kubernetes

This article explores how the Ansible Automation Platform integrates with OpenShift to create a powerful automation solution for modern, efficient IT operations.

How to Change Admin Password in Ansible Automation Platform on OpenShift

Introduction

Multi-Level Approvals in Ansible Automation Controller: A Workaround

Ansible Automation Controller streamlines IT tasks through automation. A key component of this power lies in workflows . These workflows allow you to orchestrate a sequence of dispara...

Dynamic Inventory in Ansible Controller: Use an Inventory File as a Source

Ansible’s inventory plays a crucial role in defining the infrastructure you manage. It holds information about your hosts, such as their names, variables, and IP addresses. Traditiona...

Integrating Ansible Automation Platform with CyberArk Password Vault to retrieve credentials

Introduction

Integrating Ansible Automation Controller with Splunk

Do you use Red Hat Ansible Automation Controller to manage your IT infrastructure? Keeping track of what’s happening behind the scenes is crucial. This blog post will show you how to ...

Book Review: Practical Ansible, 2nd Edition

I want to express my gratitude to the authors, James Freeman , Fabio Alessandro Locati , and Daniel Oh , and to Packt for presenting us with this enhanced and improved 2nd edition of ...

Installing Ansible Automation Platform with AWS RDS and SSL Encryption

In today’s rapidly evolving IT landscape, automation is the key to streamlining operations and achieving efficiency. Red Hat® Ansible® Automation Platform (AAP) is a comprehensive sol...

Ansible in DevOps – Knowledge Sharing and Book Giveaway!

Do you want to boost your automation skills and learn more about Ansible? Then, you’re in for a treat! We’ve got an exciting event coming up that you won’t want to miss.

How to Utilize Ansible Collection from a Git Server with Ansible Automation Controller

In the ever-evolving landscape of IT automation, Ansible has become a cornerstone for many organizations. One of the strengths of Ansible is its ability to modularize and distribute c...

Now Available: Updated Ansible Lab using Vagrant and VirtualBox!

I am happy to announce the updated version of the Ansible Lab code, based on the valuable feedback from our incredible learning community! This lab is designed to provide you with a h...

A Shift in Focus: Why I Redirected My Efforts from OpenGuard to Event-Driven Ansible

Introduction

Why ChatGPT is Not Ideal for Generating Ansible Playbooks

Ansible is a popular automation tool used in IT operations and DevOps to manage infrastructure and automate repetitive tasks. It is designed to be simple and easy to use, even for tho...

How To Pass Environment Variables to Ansible Navigator

ansible-navigator is the new command line utility (CLI) introduced in Ansible Automation Platform 2, for running and developing Ansible automation content. ansible-navigator can be us...

How to build Ansible execution environment images for unconnected environments

Create a defined, consistent and portable environment for executing automation jobs on air-gapped or disconnected systems .

Learn Ansible – A Comprehensive Guide for Courses and Exams

Introduction

Ansible Automation Platform 1.2 to 2 Migration Guides

Image Source: [ansible.com/blog](https://www.ansible.com/blog/new-reference-architecture-red-hat-ansible-automation-platform-1.2-to-2-migration-guide)This is a living document where t...

How to pass extra variables to an Ansible playbook

With Ansible, users have the flexibility to accept external input while executing their Ansible playbooks without changing the Ansible playbook content. This can be done via the abili...

How to send email using Ansible and Gmail

As part of your automation jobs, you can implement email notifications from Ansible itself instead of manually drafting and sending emails. Ansible mail module is simple and easy to u...

Ansible Automation for Windows

Ansible’s reputation as a Linux automation powerhouse is well-deserved. But a common misconception lingers: is Ansible strictly for Linux environments? The answer? Absolutely not!

Ansible Navigator Cheat Sheet

What is ansible-navigator

Ansible Convert List to String

I noticed many users are using different and wrong methods to convert a list data to string format. You can use existing filters and functions in Ansible to achieve the same.

Ansible Windows Management using HTTPS and SSL

Managing your Windows machines and servers using Ansible is pretty easy as there are more than hundred modules available to handle your Windows operations. This is a series of article...

Ansible for Windows – Troubleshooting

Managing Windows machines using Ansible is pretty straightforward and simple as in the document. You need to configure and enable WinR M on your Windows machine and then open WinRM po...

How to open WinRM ports in the Windows firewall

You might already knew that, Ansible can manage Windows servers as well. And this is a supporting article for Configure Your Windows Host to be Managed by Ansible .

How to set up and use Python virtual environments for Ansible

It’s vital to test new technology before rolling it out into your production environment. I like to use Python virtual environments provided by the venv module for developing and test...

Use Terraform to Create a FREE Ansible Lab in AWS

Introduction

How to Create a FREE Ansible Lab in Public Cloud (AWS, GCP, Azure)

Introduction

How to install an Ansible Collection on a disconnected Ansible control node

In this tutorial, I demonstrate how and where to install Ansible Content Collections in an Ansible control node that has no internet access. The process is simple and straightforward,...

System Reboot with Ansible Reboot Module

A reboot operation in a Linux Operating System is very rare as most of the time we can achieve the result by individual service restart or reload after configuration changes or packag...

Getting Started with Ansible Collections

Ansible Collection is a great way of getting content contributions from various Ansible Developers. Earlier there was a tagline for Ansible – “Batteries included”, but now the battery...

Configure Your Windows Host to be Managed by Ansible

I was talking to my friend about Ansible automation and how we are implementing automated solutions for cloud and on-premise infrastructure. Then he told me that, his team is looking ...

Remove nodes from Kubespray Managed Kubernetes Cluster

Kubespray is a combination of Ansible and Kubernetes and you can use Kubespray for deploying production ready Kubernetes clusters.

Adding new nodes to Kubespray Managed Kubernetes Cluster

Kubespray is a combination of Ansible and Kubernetes and you can use Kubespray for deploying production ready Kubernetes clusters.

Deploying Kubernetes with Kubespray

Photo by Tom Fisk from Pexels

Connecting Ansible Tower to Git Server with Self Signed Certificates

So many questioned me when I mention git server in an Ansible Tower environment; and later I realized that, most of them are keeping their projects inside Ansible Tower !!!

HashiCorp Certified Terraform Associate – Learning & Exam Tips

Introduction

Deploy Minikube Using Vagrant and Ansible on VirtualBox – Infrastructure as Code

Okay, you started learning kubernetes; maybe you are following some courses or documentations. Some of the courses are arranged with FREE labs where you can do hands-on labs and test ...

Ansible Automates 2020 on 9th & 10th September

Another good news during this unusual time as Ansible Automate 2020 is a Virtual Event this year and we all will get the chance to attend the same from our office or home.

ansible-tower-service, Start or Stop Ansible Tower

Image: rockwellcollins.com | 01 Jan 2000 — Hand on throttle — Image by © Firefly Productions/CORBIS Learn Ansible : Automation with Ansible – All You Want to Learn

How To Add Custom Modules In Ansible

Image : bsbgroup.com/ Okay, we all know Ansible installation is coming with default modules and you don’t need to download or configure any additional modules for normal cases, Yes b...

Ansible Tower – How to Backup and Restore

Image Background : datafloq.comAnsible Tower is a wonderful product which help to implement a central hub for IT automation. Ansible Tower is basically a web console and REST API for ...

Managing Ansible Facts

Ansible facts are nothing but some variables which are automatically discovered by the Ansible on managed hosts while running ansible adhoc commands or playbooks.

Managing Ansible Variables

Ansible Variables

Ansible and Jenkins integration – Red Hat Webinar

Join this Red Hat webinar to see how to use Jenkins pipelines to deploy simple applications using Ansible Tower.

Installing Python Modules in Disconnected Environments

Installing a python module or package (any applications) is very easy if you have internet connection and access to public repo or private repo.

Ansible Nested Loop with List and Dictionary

Ansible loops are simple and powerful with mixed data. You will sure say “awesome” when you realize the easiness with loops.

Implementing Ansible Roles

In a production environment, we will have hundreds and thousands of different types machines to handle. Hence the type of operations and implementation methods will be different from ...

Deploying Roles With Ansible Galaxy

So you have learned about Ansible Roles and the importance of using roles. Ansible Galaxy is a public library where you can find thousands of roles written by other ansible users and ...

Play with Ansible Playbooks

Plays are ordered set of tasks to execute against host selections from your inventory. A playbook is a file containing one or more plays.

Setup Vim editor for YAML, Ansible, Kubernetes, OpenShift

Are you new to Vim and working with YAML files? This post is for you! If you’re already a Vim expert, feel free to skip this quick guide.

Running Ansible Ad-Hoc commands

We have already  run few ad-hoc command to list down the hosts in earlier sections.

Managing Ansible Inventory

Inventory File

Ansible Deployment

Hope you are clear on the concept and installation of Ansible program. Lets configure our Ansible environment now.

Installing Ansible

You may refer installation doc from official document as well.

Ansible Introduction

You have hundreds and thousands of online documentation and wiki pages for learning Ansible , and this is our attempt to cover Ansible in a simple and beginner level approach.

Where Should You Keep Your Ansible Collection?

Simplifying Automation with Organized Collections

How to Change Admin Password in Ansible Automation Platform on OpenShift

Introduction

Multi-Level Approvals in Ansible Automation Controller: A Workaround

Ansible Automation Controller streamlines IT tasks through automation. A key component of this power lies in workflows . These workflows allow you to orchestrate a sequence of dispara...

Dynamic Inventory in Ansible Controller: Use an Inventory File as a Source

Ansible’s inventory plays a crucial role in defining the infrastructure you manage. It holds information about your hosts, such as their names, variables, and IP addresses. Traditiona...

How To Pass Environment Variables to Ansible Navigator

ansible-navigator is the new command line utility (CLI) introduced in Ansible Automation Platform 2, for running and developing Ansible automation content. ansible-navigator can be us...

Learn Ansible – A Comprehensive Guide for Courses and Exams

Introduction

Ansible Automation Platform 1.2 to 2 Migration Guides

Image Source: [ansible.com/blog](https://www.ansible.com/blog/new-reference-architecture-red-hat-ansible-automation-platform-1.2-to-2-migration-guide)This is a living document where t...

Build Your Own Git Server using Gogs

When it comes to VCS ( Version Control System ), we will have confusion as we have many products in the market with almost the same capabilities. When we think about enterprise-level ...

Setup Vim editor for YAML, Ansible, Kubernetes, OpenShift

Are you new to Vim and working with YAML files? This post is for you! If you’re already a Vim expert, feel free to skip this quick guide.

How to setup SSH key based authentication

In an automated IT world, password-based authentications are not a good choice and will restrict so many abilities. For SSH access, you can easily configure SSH Key based authenticati...

How to create a partition greater than 2TB in Linux

Due to limitation of fdisk utility, you will not be able to create partition greater than 2TB in linux with fdisk. This is a quick example to show how to create a bigger partition usi...

ComVault Simpana Installation (cv11) on Linux (RHEL7)- Step by Step

This is a very basic article to share the cv11 installation. If any corrections/mistakes, please feel free to feedback as I am not an expert on this item.

Enable newly installed vFlash card in Dell iDRAC

I have explained how to to use vFlash card as an easy boot method here . If you are not able to see a vFlash card (or vFlash card tab is missing in iDRAC screen GUI), then it might be...

Enable LVM flag on partition using parted in Linux

Recently we have noticed some issue with one of our filesystem having issue and realized wrong flags on partition which was used as a Physical Volume (PV) in LVM ( Logical Volume Mana...

Enable LVM flag on partition using parted in Linux

Recently we have noticed some issue with one of our filesystem having issue and realized wrong flags on partition which was used as a Physical Volume (PV) in LVM ( Logical Volume Mana...

How To Create A New User In iDRAC Via Local RACADM From Linux

There might be situations like you forgot or lost your iDRAC login credentials and you don’t have an option to access iDRAC since the server is in a remote location. Using local RACAD...

How to install racadm for iDRAC on RHEL / Linux

Dell has a beautiful tool for remote server management called iDRAC which is almost same like HPE iLO, but with different features. You can access iDRAC using GUI or via ssh. But what...

How to Use Pod Failure Policy in Kubernetes

Introduction

Testing Kubernetes 1.31 with minikube: A Step-by-Step Guide for multi-node cluster

In this guide, we’ll explore how to set up and test the latest Kubernetes 1.31 using minikube. We’ll create a 3-node cluster with specific configurations to provide a robust local dev...

How to Learn Containers in 2025: Podman, Docker, and more

Containers are revolutionizing modern IT, offering a lightweight and portable way to package and deploy applications. But what exactly are they, and how can you leverage their power? ...

Demystifying Kubernetes API Versions: Alpha, Beta and Stable

Kubernetes , the container orchestration platform, empowers developers to manage containerized applications. But have you ever stumbled upon those confusing version numbers attached t...

Let-s talk about kubectl create, apply, edit, replace and patch

Juggling flaming chainsaws in Kubernetes ? Don’t worry, fellow tech adventurer! While managing resources can feel like that sometimes, the kubectl command is your friendly sensei, tea...

Exploring Kubernetes 1.29 with Kind

What is Kind (Kubernetes IN Docker)?

Let us test Kubernetes 1.29 with minikube

minikube , your trusty local Kubernetes playground, makes testing and learning a breeze. But did you know you can use it to experiment with the hottest Kubernetes versions, even befor...

Book Review: OpenShift Multi-Cluster Management Handbook

In the dynamic landscape of multi-cluster architectures, finding reliable and practical resources can be a challenge. Amidst the scarcity of such references, the “ OpenShift Multi-Clu...

Promo: Get Up to $700 Off on KubeCon + CloudNativeCon North America 2023 Tickets

Introduction

oc edit – How To Customize Your OpenShift / Kubernetes CLI Editor

Introduction: The command line, a.k.a. the terminal, is a powerful tool for interacting with your computer, especially when working with tools like OpenShift (oc). One aspect of your ...

Book Review: 50 Kubernetes Concepts Every DevOps Engineer Should Know

50 Kubernetes Concepts Every DevOps Engineer Should Know” by Michael Levan is an invaluable resource for both beginners and experienced professionals delving into Kubernetes. The book...

Implementing Immutable ConfigMaps in Kubernetes: A Practical Tutorial

In the world of Kubernetes , ConfigMaps are a vital resource for managing configuration data in a declarative manner. ConfigMaps store key-value pairs that can be consumed by containe...

Top 15 Free Kubernetes Courses

Kubernetes is the de-facto platform for organisations to host their applications and the old “Systems Engineer” job has been re-designed with the requirement of Kubernetes skillset; m...

Practicing Kubernetes

Grasping Kubernetes takes more than just reading docs, watching videos, or consuming courses. To truly solidify your understanding, hands-on practice is essential. Here are some excel...

How to access applications deployed in minikube Kubernetes cluster using NodePort

minikube is the most simple way to spin-up and use a Kubernetes cluster for your quick needs. You can install and use minikube clusters on Linux, Windows and Mac workstations without ...

Why is Kubernetes certification so important ? 5 reasons I noticed

Did you ever wonder when people post their certification victories with CKA , CKAD or CKS badges ? Why are these certifications so important and why are system engineers and devops pr...

Multi-node Kubernets Cluster in 10 minutes

If you have credits on Public cloud accounts, then you can use managed Kubernetes services such as GKE , AKS , EKS etc. But building self-hosted Kubernetes clusters are not straightfo...

OpenShift Operators (Kubernetes Operators)

Welcome back to the OpenShift BootCamp series.

What is OpenShift

Welcome back to the OpenShift BootCamp series. In this article you will  learn what OpenShift is and why we are using OpenShift. We will also learn the features of OpenShift compared ...

Introduction to OpenShift BootCamp

Hello everyone, welcome to the OpenShift BootCamp course. This is the course introduction for you to understand the structure and content of this course.

What is Hosted OpenShift Cluster

Photo by Belle Co from PexelsRed Hat OpenShift is the well known enterprise Kubernetes distribution and it is a platform with ready-to use features, compared to the default Kubernetes...

10 Tips for your Kubernetes Exam – CKA & CKAD

Since Kubernetes is getting wide acceptance, Kubernetes Certification is one of the most trending certifications in the IT circle now; both Certified Kubernetes Administrator (CKA) an...

Deploy Minikube Using Vagrant and Ansible on VirtualBox – Infrastructure as Code

Okay, you started learning kubernetes; maybe you are following some courses or documentations. Some of the courses are arranged with FREE labs where you can do hands-on labs and test ...

Kubernetes Certification Guide: How to Pass KCNA, KCSA, CKA, CKAD, and CKS

Kubernetes is everywhere now — whether you’re deploying apps, managing infrastructure, or working on security, Kubernetes is a core skill. The certifications from CNCF and Linux Found...

How to delete a pod with Terminating state in OpenShift or Kubernetes Cluster

Image Courtesy : https://www.maritime-executive.comThere might be situations where you have already deleted pods (or already removed dc aka deployment configuration) but pods are stuc...

Google Cloud Global Digital Conference – Jan 24

Google Cloud is arranging Global Digital Conference on 24th January 2019 .

How to Fix a Failed PV in OpenShift Cluster

Image : https://premierevanlines.comThere are several cases a PV (PersistentVolume) appear as Failed in OpenShift or Kubernetes cluster. Once of the reason is wrong ClaimRef by which ...

Promo: Get Up to $700 Off on KubeCon + CloudNativeCon North America 2023 Tickets

Introduction

oc edit – How To Customize Your OpenShift / Kubernetes CLI Editor

Introduction: The command line, a.k.a. the terminal, is a powerful tool for interacting with your computer, especially when working with tools like OpenShift (oc). One aspect of your ...

What is OpenShift

Welcome back to the OpenShift BootCamp series. In this article you will  learn what OpenShift is and why we are using OpenShift. We will also learn the features of OpenShift compared ...

Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE

Cover Image : [@nickmorrison](https://unsplash.com/@nickmorrison)Update: O’Reilly has closed the public access of Katakoda labs. Please use the following resources 1. Interactive labs...

Start Your OpenShift Journey with these Free Red Hat Training Programs

#Red Hat OpenShift Container Platform is one of the best kubernetes platform for enterprises. As we know kubernetes and OpenShift are multi-component stack and not easy to learn witho...

How to Fix a Failed PV in OpenShift Cluster

Image : https://premierevanlines.comThere are several cases a PV (PersistentVolume) appear as Failed in OpenShift or Kubernetes cluster. Once of the reason is wrong ClaimRef by which ...

Cloud OnBoard: GCP Fundamentals Series [Online Training]

Google Cloud Platform has announced a new online training session – Cloud OnBoard : GCP Fundamentals Series which will be happening on 24th-26th March 2020 . This will not be just sli...

How to Create Scheduled Snapshots in Google Cloud Platform

Yes, your server and data are on cloud, but to avoid the risk of unexpected data loss still you need to follow standard backup mechanisms provided by cloud providers like snapshots or...

Google Cloud Global Digital Conference – Jan 24

Google Cloud is arranging Global Digital Conference on 24th January 2019 .

Ansible in DevOps – Knowledge Sharing and Book Giveaway!

Do you want to boost your automation skills and learn more about Ansible? Then, you’re in for a treat! We’ve got an exciting event coming up that you won’t want to miss.

Learn the basics of Linux from Red Hat [FREE]

Red Hat is offering its beginner level Linux course at no-cost; yes you heard it right – Its free ! Red Hat Enterprise Linux Technical Overview (RH024) is offering as Video Classroom ...

AWS Summit Singapore 2019

This year AWS Summit Singapore will happen on April 10–11, 2019 at Singapore Expo Convention & Exhibition Centre. AWS is introducing a new session called TechFest on April 10, a ...

Save 30% on KubeCon + CloudNativeCon North America 2025 Tickets!

Are you into Kubernetes, cloud native tech, or open source in general? Then mark your calendar: KubeCon + CloudNativeCon North America 2025 is happening from November 10–13, 2025 in A...

Red Hat Remote Exams – Everything you need to know

We all know Red Hat certifications are valuable, especially when it comes to job hunting. They’re not just theory-based—they test your real skills. Unlike many other IT exams that are...

Artificial Intelligence (AI) – Learning and Development

Introduction – AI, ML, DL, and GenAI

How to Learn AI Today! Your Ultimate AI Learning Guide

Artificial Intelligence (AI) is transforming industries, automating tasks, and creating new opportunities worldwide. Whether you’re a beginner or an experienced professional looking t...

Promo – Get 30% Off on KubeCon + CloudNativeCon Europe 2025 Tickets!

Are you excited about cloud native technologies? If so, mark your calendars for KubeCon + CloudNativeCon Europe 2025 happening from April 1-4 in London ! This is the Cloud Native Comp...

Promo: Get Up to $430 Off on KubeCon + CloudNativeCon North America 2024 Tickets

Are you passionate about cloud native technologies? If so, the Cloud Native Computing Foundation’s (CNCF) flagship event KubeCon + CloudNativeCon North America 2024 is where you need ...

Promo: Get Up to $430 Off on KubeCon + CloudNativeCon Europe 2024 Paris Tickets

Are you ready to dive deep into the world of cloud native computing? Look no further than KubeCon + CloudNativeCon Europe 2024, happening from March 19th to 22nd in Paris, France .

5 Effective Methods for Continuous Learning in AI, ML, and DevOps Era

In the era of Artificial Intelligence (AI), Machine Learning (ML), and DevOps, continuous learning has become a crucial element for personal and professional growth. These rapidly evo...

Why I Choose Digital Detoxification: A Personal Journey

In today’s digital age, it’s easy to become consumed by technology. We spend hours glued to our screens, checking social media, responding to emails, and scrolling through endless str...

How To Ask Technical Questions

Skip unnecessary introductions like “Hello, how are you?” and get straight to the point by briefly describing your issue and the technology involved.

Start your Linux journey with free Linux training courses

If you are new to Linux, then learning some of the tools (especially opensource tools) will be difficult as many of them are only available for Linux or natively running on Linux. And...

DevOps Engineer Skills – Most Demanding DevOps Skills You Should Learn in 2021

Introduction

Learn the basics of Linux from Red Hat [FREE]

Red Hat is offering its beginner level Linux course at no-cost; yes you heard it right – Its free ! Red Hat Enterprise Linux Technical Overview (RH024) is offering as Video Classroom ...

Sending Email Using Python and smtplib – Quick HowTo

Image Courtesy : www.telegraph.co.uk

Implementing Immutable ConfigMaps in Kubernetes: A Practical Tutorial

In the world of Kubernetes , ConfigMaps are a vital resource for managing configuration data in a declarative manner. ConfigMaps store key-value pairs that can be consumed by containe...

HTTP Status Codes- Quick Reference

Image : https://www.sharesight.comYou are browsing some sites or testing your own web applications, and suddenly you receive a white screen with some error number ! No worries, if you...

Installing Podman on Red Hat Enterprise Linux 9

If you’re working with containers on Red Hat Enterprise Linux (RHEL), you’ve likely heard of Docker . However, there’s another powerful tool you can use: Podman . This tutorial will w...

Top 5 Free Resources to Learn Docker

Photo by Tom Fisk from PexelsSomeone told me last time, he knows kubernetes and he is using kubernetes in his organisation. But he missed to understand the basic concepts of docker an...

Adding Container Images to Google Container Registry (GCR)

Image : cloud.google.comGoogle Container Registry (GCR) is a service in Google Cloud Platform (GCP) to manage your own docker container repository. This is fully managed service and y...

Ansible Automates 2020 on 9th & 10th September

Another good news during this unusual time as Ansible Automate 2020 is a Virtual Event this year and we all will get the chance to attend the same from our office or home.

Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE

Cover Image : [@nickmorrison](https://unsplash.com/@nickmorrison)Update: O’Reilly has closed the public access of Katakoda labs. Please use the following resources 1. Interactive labs...

Start Your OpenShift Journey with these Free Red Hat Training Programs

#Red Hat OpenShift Container Platform is one of the best kubernetes platform for enterprises. As we know kubernetes and OpenShift are multi-component stack and not easy to learn witho...

Cloud OnBoard: GCP Fundamentals Series [Online Training]

Google Cloud Platform has announced a new online training session – Cloud OnBoard : GCP Fundamentals Series which will be happening on 24th-26th March 2020 . This will not be just sli...

How to Install VMWare vCenter Server Appliance

When we talk about virtualization, VMWare is one of the best choice and most popular in town. You can download VMware vSphere Hypervisor 6.7 for FREE and install on bare metal servers...

Installing oVirt 4 with Self-Hosted Engine on Enterprise Linux

(Image by [@tvick)](https://unsplash.com/@tvick)/[unsplash](https://unsplash.com/)) oVirt is one of the best free and open-source virtualization solution with enterprise level featur...

Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE

Cover Image : [@nickmorrison](https://unsplash.com/@nickmorrison)Update: O’Reilly has closed the public access of Katakoda labs. Please use the following resources 1. Interactive labs...

Best Kubernetes Monitoring & Observability Tools (Updated)

Kubernetes has defined the standard for container orchestration, and it enables organizations to manage applications at scale. However, monitoring and observability become increasingl...

Integrating Ansible Automation Controller with Splunk

Do you use Red Hat Ansible Automation Controller to manage your IT infrastructure? Keeping track of what’s happening behind the scenes is crucial. This blog post will show you how to ...

Free GitOps and CI/CD Courses and Certifications

CI/CD (Continuous integration and Continuous delivery or Continuous deployment) and GitOps are not new terminologies in the IT world. There are several software and tools to accomplis...

Terraform Cheat Sheet

What is Terraform

Kubernetes vs OpenShift – 15 Facts You Should Know

Welcome back to the OpenShift Bootcamp series. In this article we will see the difference between Kubernetes and OpenShift . Please note, during the course, when I say OpenShift it me...

Introduction to OpenShift BootCamp

Hello everyone, welcome to the OpenShift BootCamp course. This is the course introduction for you to understand the structure and content of this course.

5 Mistakes You Should Avoid During Kubernetes Exam

Photo by Andrea Piacquadio from PexelsRead this article if you are planning to attend any of the Kubernetes exams in the near future. Because many shared in the forums or chat groups ...

10 Tips for your Kubernetes Exam – CKA & CKAD

Since Kubernetes is getting wide acceptance, Kubernetes Certification is one of the most trending certifications in the IT circle now; both Certified Kubernetes Administrator (CKA) an...

Kubernetes Certification Guide: How to Pass KCNA, KCSA, CKA, CKAD, and CKS

Kubernetes is everywhere now — whether you’re deploying apps, managing infrastructure, or working on security, Kubernetes is a core skill. The certifications from CNCF and Linux Found...

Red Hat Remote Exams – Everything you need to know

We all know Red Hat certifications are valuable, especially when it comes to job hunting. They’re not just theory-based—they test your real skills. Unlike many other IT exams that are...

Ansible Capacity Planning: Ansible contol node and automation controller

When you’re running automation at scale, whether it’s using Ansible contol node or Ansible Automation Platform (AAP) with its automation controller , understanding how to plan your en...

Best Kubernetes Monitoring & Observability Tools (Updated)

Kubernetes has defined the standard for container orchestration, and it enables organizations to manage applications at scale. However, monitoring and observability become increasingl...

Running PostgreSQL Instances as Containers with Podman

PostgreSQL is a powerful, open-source relational database system widely used in modern applications. Running PostgreSQL as a container offers a range of benefits, particularly when us...

Book Review: Mastering Prometheus

Although I’m not deeply involved in production monitoring setups nowadays, I’ve always been interested in implementing them. In the past, I used to know about production monitoring th...

Book Review: Kubernetes – An Enterprise Guide, Third Edition

Authors: Marc Boorshtein, Scott Surovic

Book Review: Mastering GitHub Actions

If you’re like me and started your CI/CD journey with bash scripts, you’ll appreciate how far the tools have come. Back then, we had to rely on multiple scripts to get things done. To...

Installing Podman on Red Hat Enterprise Linux 9

If you’re working with containers on Red Hat Enterprise Linux (RHEL), you’ve likely heard of Docker . However, there’s another powerful tool you can use: Podman . This tutorial will w...

Book Review: Mastering Amazon EC2

Mastering Amazon EC2 by Badri Kesavan is an excellent resource for anyone looking to dive deep into Amazon EC2. Badri, who is highly active in the AWS user group communities as an org...

Install Ansible AWX on Kubernetes

Ansible AWX is the upstream project for the Ansible automation controller (Part of Red Hat Ansible Automation Platform). It offers a web-based user interface, REST API, and a task eng...

How to Use Pod Failure Policy in Kubernetes

Introduction

Testing Kubernetes 1.31 with minikube: A Step-by-Step Guide for multi-node cluster

In this guide, we’ll explore how to set up and test the latest Kubernetes 1.31 using minikube. We’ll create a 3-node cluster with specific configurations to provide a robust local dev...

How to Learn Containers in 2025: Podman, Docker, and more

Containers are revolutionizing modern IT, offering a lightweight and portable way to package and deploy applications. But what exactly are they, and how can you leverage their power? ...

Integrating Ansible with OpenShift & Kubernetes

This article explores how the Ansible Automation Platform integrates with OpenShift to create a powerful automation solution for modern, efficient IT operations.

Demystifying Kubernetes API Versions: Alpha, Beta and Stable

Kubernetes , the container orchestration platform, empowers developers to manage containerized applications. But have you ever stumbled upon those confusing version numbers attached t...

Integrating Ansible Automation Platform with CyberArk Password Vault to retrieve credentials

Introduction

Running Multiple Kubernetes Playgrounds: Your Guide to Minikube Magic!

Have you ever wanted to experiment with Kubernetes, but felt a little intimidated by setting up a complex cluster? Well, fear not! minikube comes to the rescue, allowing you to run yo...

Promo: Get Up to $430 Off on KubeCon + CloudNativeCon Europe 2024 Paris Tickets

Are you ready to dive deep into the world of cloud native computing? Look no further than KubeCon + CloudNativeCon Europe 2024, happening from March 19th to 22nd in Paris, France .

Let-s talk about kubectl create, apply, edit, replace and patch

Juggling flaming chainsaws in Kubernetes ? Don’t worry, fellow tech adventurer! While managing resources can feel like that sometimes, the kubectl command is your friendly sensei, tea...

Book Review: The Linux DevOps Handbook

Authors: Damian Wojsław & Grzegorz Adamowicz

Book Review: Fedora Linux System Administration – A Hands-On Guide for Power Users

For years, Ubuntu was my Linux love. Its popularity drew me in, and it served me well. But then I met Fedora. Its stability, cutting-edge features, and vibrant community slowly won me...

Let us test Kubernetes 1.29 with minikube

minikube , your trusty local Kubernetes playground, makes testing and learning a breeze. But did you know you can use it to experiment with the hottest Kubernetes versions, even befor...

Book Review: Terraform Cookbook, Second Edition

As I shared last week, I’m currently on paternity leave, juggling late-night feedings and diaper changes with the joys of fatherhood. While carving out quiet time for myself has been ...

Book Review: OpenShift Multi-Cluster Management Handbook

In the dynamic landscape of multi-cluster architectures, finding reliable and practical resources can be a challenge. Amidst the scarcity of such references, the “ OpenShift Multi-Clu...

Mastering Tekton: Your Guide to Cloud-Native CI/CD Workflows

What is Tekton

Promo: Get Up to $700 Off on KubeCon + CloudNativeCon North America 2023 Tickets

Introduction

oc edit – How To Customize Your OpenShift / Kubernetes CLI Editor

Introduction: The command line, a.k.a. the terminal, is a powerful tool for interacting with your computer, especially when working with tools like OpenShift (oc). One aspect of your ...

Book Review: 50 Kubernetes Concepts Every DevOps Engineer Should Know

50 Kubernetes Concepts Every DevOps Engineer Should Know” by Michael Levan is an invaluable resource for both beginners and experienced professionals delving into Kubernetes. The book...

GitOps vs. CI/CD – Understanding the Key Differences

GitOps and CI/CD (Continuous Integration/Continuous Deployment) are two distinct but related concepts in the realm of software development and deployment. They both play a crucial rol...

Book Review: -Technology Operating Models for Cloud and Edge-

Authors: Ahilan Ponnusamy and Andreas Spanner