Hemanta Sundaray - DevOps Blog (Page 3)

Hemanta Sundaray

How to Get Docker Container IP Address From the Host?

How to Get Docker Container IP Address From the Host

In this blog post, we’ll explore various methods for finding the IP address of a Docker container that was started with the default container networking. When we say that a container was started with the default container networking, it means that the container is using the built-in Docker networking

How to Use Kubectl Delete Deployment (With Examples)?

How to Use Kubectl Delete Deployment (With Examples)

Kubernetes is a popular container orchestration tool used to deploy and manage containerized applications at scale. In Kubernetes, a Deployment describes a deployed application. It is a higher-level abstraction that manages an application’s desired state, such as the number of replicas (copies), the container image to use for the

Kubectl Create Namespace: How to Create a Custom Namespace?

Kubectl Create Namespace: How to Create a Custom Namespace?

In this blog post, we'll learn how to create a custom Namespace in Kubernetes using the "kubectl create namespace" command. But before we do so, let's take a step back and understand what a Namespace is and why it's useful. What Is

Kubectl Exec: How to Execute Shell Commands Into a Container (With Examples)?

Kubectl Exec: How to Execute Shell Commands Into a Container (With Examples)?

Kubernetes is a powerful container orchestration platform for easily deploying and managing containerized applications. However, managing containerized applications is about more than just getting them up and running. Sometimes, you’ll need to interact with the containers to perform important tasks, such as debugging issues or modifying files or directories.

What Is Kubectl Port-Forward and How Does It Work?

What Is Kubectl Port-Forward and How Does It Work?

Kubernetes is a popular container orchestration platform for deploying and managing containerized applications. When you deploy a containerized application to a Kubernetes cluster, it runs inside a Pod. By default, Pods are not exposed to the public internet. If you want to make the application running inside the Pod accessible

What Is Kubernetes DaemonSet and How to Use It?

What Is Kubernetes DaemonSet and How to Use It?

In Kubernetes, a Deployment is a higher-level abstraction built on top of ReplicaSets. In other words, a Deployment provides a simpler, higher-level interface for managing and scaling applications, while ReplicaSets are the lower-level building blocks that a Deployment uses to achieve this. When you create a Deployment, you specify the

How to Run a Docker Image as a Container?

How to Run a Docker Image as a Container?

Have you ever struggled to get your application to run smoothly across different environments, from your local laptop to a production server? It's a common challenge in software development. Fortunately, there’s a solution to this challenge — containerization. With containerization, you can package your application and all its

ClusterIP vs NodePort vs LoadBalancer: Key Differences and When to Use Them?

Kubernetes Services

ClusterIP vs. NodePort vs. LoadBalancer: Key Differences and When to Use Them?

In Kubernetes, there are three commonly used Service types: ClusterIP, NodePort, and LoadBalancer. These Services provide different ways to make Pods accessible to other Pods within the cluster and to clients outside of it. In this blog post, first, we’re going to talk about Kubernetes Services — what they are

Docker Exec: How to Enter Into a Docker Container's Shell?

Docker Exec: How to Enter Into a Docker Container's Shell?

Docker is a platform that helps run applications inside containers. Once you have your application running in a container, you might want to carry out some tasks that require you to get inside the container. For example, you might want to modify files or directories, install new packages, or perhaps

What Are Objects Used for in Kubernetes? 11 Types of Objects Explained.

What Are Objects Used for in Kubernetes? 11 Types of Objects Explained.

Kubernetes is a container orchestration tool used to deploy & manage containerized applications in an automated way. One of the key concepts in Kubernetes is the "desired state," which refers to the configurations of the applications that you want to deploy and run. Essentially, it's the

What Is Kubernetes Headless Service (With Examples)?

What Is Kubernetes Headless Service (With Examples)?

Kubernetes is a powerful platform for managing containerized applications. One of its crucial components is the Service object, which enables communication (networking) between different parts of an application. In this blog post, we will dive into the concept of headless Services. We will find out what they are, how they

Kubernetes Services: Definitions & Examples (2023)

Kubernetes Services: Definitions & Examples (2023)

Kubernetes is a platform that helps you run your containerized applications on a massive scale. A key aspect of this is ensuring that different parts of your apps can easily communicate. Kubernetes does this by using Kubernetes Services. These Services allow smooth communication between components within the cluster and between

What Are Kubernetes KEPs?

What Are Kubernetes KEPs?

Kubernetes is a popular container orchestration platform, which is constantly evolving and expanding. New features are regularly added to improve its capabilities and address the changing needs of its users. So, how does a new feature make it into Kubernetes? Well, it all starts with a Kubernetes Enhancement Proposal (KEP)

Kubernetes Networking: Fundamental Concepts Explained (2023)

Kubernetes Networking: Fundamental Concepts Explained (2023)

Networking is the backbone of modern technology. It's what allows communications between devices and applications, whether they're sitting next to each other or on opposite sides of the world. Essentially, networking is all about connecting things together. In the context of Kubernetes, networking is even more

DevOps vs Agile - What’s the Difference?

DevOps vs. Agile - What’s the Difference?

If you are in the tech industry, you have probably heard the terms "DevOps" and "Agile" thrown around a lot. But what do they actually mean, and how are they different? That's what we are here to explore today. In this post, we will

Docker Containerization: Key Benefits and Use Cases

Containerization

Docker Containerization: Key Benefits and Use Cases

Containerization has revolutionized the way we deploy software. In this post, we will learn about containerization, its benefits, and its common uses. We will also see how it is related to Docker, a popular container platform. By the end, you will have a good understanding of containerization and its role

Docker Architecture Explained: Docker Daemon, Docker Client & Docker Registry

Docker Architecture Explained: Docker Client, Docker Daemon & Docker Registry

Docker is a platform that helps you run your application in a container. A container is sort of like a virtual machine but much more lightweight and easier to set up. The idea is that you package up your application and all of its dependencies into a container, and then

Why Should You Learn HashiCorp Terraform?

Why Should You Learn HashiCorp Terraform?

Software applications run on top of infrastructure. This includes things like servers, databases, storage, networking, and other infrastructure components. Imagine you are an employee tasked with setting up a new web server for your company's website. Let’s consider a manual infrastructure provisioning scenario. You would have to

Kubernetes Terms: Pods, Containers, Nodes & Clusters

Kubernetes Terminology: Pods, Containers, Nodes & Clusters

Kubernetes is an open-source container orchestration tool created by Google. It eases the work of managing containerized applications at scale by automating tasks such as deployment and scaling. This blog explores the meaning of four terms that you'll come across many times when working with Kubernetes: Containers, Pods,

Puppet in DevOps

What is Puppet in DevOps?

Let’s talk about software deployment. Before we can deploy an application and make it available to its users, we must complete two steps: First, we provision the infrastructure, which is the set of hardware & software components that support the application’s development, testing, and deployment. Provisioning means setting