Introduction of Oauth 2.0
OAuth 2.0 is an open standard for authorization. It enables applications to obtain limited access to user accounts on HTTP services, such as Facebook, GitHub, and Google,…
List of Popular Design Pattern
A design pattern is a general reusable solution to a commonly occurring problem in software design. It is not a finished design that can be transformed directly…
Kubernetes in a Nutshell
1+ 4 Kubernetes, also known as K8s, is an open-source container orchestration platform. It automates many of the manual processes involved in deploying, managing, and scaling containerized…
RabbitMQ vs Kafka Vs ActiveMQ
RabbitMQ, Kafka, and ActiveMQ are all popular messaging brokers, but they have different strengths and weaknesses. RabbitMQ is a message queue that is known for its flexibility…
Jira Tutorials: How to create new Issues Types?
Creating new issue types in Jira allows you to customize the types of tasks or work items that your project can track. By defining your own issue…
Jira Tutorials: How to add Custom Field
Adding custom fields in Jira is a powerful way to tailor your Jira projects to your team’s specific needs. Custom fields allow you to capture and track…
Jira Tutorials: Working with Workflow
What is a Jira workflow? A Jira workflow is the path that an issue takes from creation to completion. It is made up of a series of…
List of Popular Projects at Github for Sample Lab and Exercise
ASP.NET eShopOnWeb Sample ASP.NET Core 7.0 reference application, powered by Microsoft, demonstrating a layered application architecture with monolithic deployment model. Download the eBook PDF from docs folder.URL…
Dynatrace Tutorials: Dynatrace Managed Cluster on the AWS Cloud
This Quick Start sets up a highly available, secure AWS environment, and automatically launches a Dynatrace Managed cluster into a new or existing Virtual Private Cloud (VPC)….
Dynatrace Tutorials: How to Generate a Dynatrace API Token
To configure the SL1 system to monitor Dynatrace resources using the DynatracePowerPack, you must firstgenerate a Dynatrace API token.To do so: Rajesh KumarI’m Rajesh Kumar, a DevOps,…
Kubernetes Tutorials: How to modify CHANGE-CAUSE in Deployment revision
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Difference Between snowflake vs databricks
Snowflake and Databricks are two powerful cloud-based platforms, each offering a distinct approach to data processing and analytics. Here’s a comparison highlighting their differences: Rajesh KumarI’m Rajesh…
Types of API Testing
There are many different types of API testing, but some of the most common include: In addition to these general types of API testing, there are also…
List of Popular Secret Manager
AWS Secrets Manager AWS Secrets Manager is a managed service that helps you protect and manage secrets used in your applications. Secrets Manager provides a central location…
Introduction of External Secrets Operator
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
What is Tekton? With One Basic Tutorial
What is Tekton? Tekton is an open-source cloud-native framework for building continuous integration and delivery (CI/CD) systems. It lets you build, test, and deploy across multiple cloud…
Algorithms and Data Structures
Algorithms and data structures are two of the most important concepts in computer science. Algorithms are step-by-step procedures for solving problems, while data structures are ways of…
System Design BluePrint
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Kubernetes: Workflow from Kubectl to Cri
When kubectl receives a create command, it performs the following steps: Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing…
Terraform Tutorials: What is terraform.tfvars with example
What is terraform.tfvars? Terraform .tfvars files are used to store variable definitions. This allows you to externalize your variable definitions and makes it easier to manage them,…
Terrafrom – Example Code for remote-exec, local-exec & file provisioner
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
How to Seek technical Support from DevOpsSchool?
Step 1 – Enroll at www.Debug.School If you dont have account, please write an email to contact@devopsschoo.com Step 2 – Create an New POST with details of…
Terraform Tutorials: How to comments in terraform code?
Terraform code supports three different syntaxes for comments: Comments can be placed anywhere in a Terraform configuration file, but they are typically placed at the beginning of…
What is terraform.tfstate and terraform.tfstate.backup file in terraform?
Here is a table that summarizes the key differences between terraform.tfstate and terraform.tfstate.backup: Feature terraform.tfstate terraform.tfstate.backup Purpose Current state file Backup of the state file When is…
Terraform Tutorials: Installation & Configurations
How to install terraform in windows? Step – 1 – Download a Terraform from https://developer.hashicorp.com/terraform/downloads Step – 2 – Extract it into C:\tools\hashicorp\terraform [ filename – terraform.exe…
List of 30 Questions and Answer for Appdynamics Certification
Question 1: What are the two main components of the AppDynamics platform? Answer: The AppDynamics platform consists of two main components: Question 2: What are the two…
How to denied or allowed any application permissions to access APIs websites using firewall?
If you mistakenly denied application permissions to access certain APIs or functionalities, you can usually grant those permissions again by following the steps based on your operating…
Datadog Tutorials: Log Collection & configuration using Datadog Agent
How to enable Log collection in Datadog? To enable log collection with an Agent running on your host, change logs_enabled: false to logs_enabled: true in the Agent’s…
Knative Tutorials: How to change ksvc DNS / URL?
The URL format for Knative Service (KService or ksvc) objects in Kubernetes is typically determined by the DNS configuration and domain suffixes within your Kubernetes cluster. The…
How to Convert PPK to PEM using Puttygent
Download to puttygen SOURCE URL – https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html DIRECT URL – https://the.earth.li/~sgtatham/putty/latest/w64/puttygen.exe Open Puttygen and Import PPK file Export Openssh Key Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE,…