--- title: "Ilayaraja Veerakalai (@ilayarajaveerakalai) | Hashnode" description: "DevOps Engineer with a strong background in Configuration Management and support roles, skilled in tools like AWS, Docker, Kubernetes, Terraform, and Ansible..." url: "https://hashnode.com/@ilayarajaveerakalai" --- @ilayarajaveerakalai # Ilayaraja Veerakalai @ilayarajaveerakalai · Joined May 2025 ### [GitLab | Simple CICD Pipeline Project to Deploy AWS Infrastructure using Terraform!](https://ilayaraja-veerakalai.hashnode.dev/gitlab-simple-cicd-pipeline-project-to-deploy-aws-infrastructure-using-terraform?utm_source=hashnode&utm_medium=feed) Project Overview Goal The primary objective of this project is to deploy a ec2 instance in a secure single-tier architecture using IAC code (Terraform) through Gitlab CI pipeline. Pre-Requisites Before starting the deployment, ensure you have the fol... 1 min read · [ilayaraja-veerakalai.hashnode.dev](https://ilayaraja-veerakalai.hashnode.dev/gitlab-simple-cicd-pipeline-project-to-deploy-aws-infrastructure-using-terraform?utm_source=hashnode&utm_medium=feed) [Jul 8, 2025](https://hashnode.com/posts/gitlab-simple-cicd-pipeline-project-to-deploy-aws-infrastructure-using-terraform/686cf3eb106607ec0782e8ed) ### [Terraform | Simple 2-Tier AWS architecture](https://ilayaraja-veerakalai.hashnode.dev/terraform-simple-2-tier-aws-architecture?utm_source=hashnode&utm_medium=feed) Project summary: IAM Role: create IAM role with access to s3 and ec2 Networking and security: Create 1 VPC Create 4 subnet Create 1 public subnet (app-tier) in az1 Create 1 public subnet (app-tier) in az2 Create 1 private subnet (db-tier) in a... 1 min read · [ilayaraja-veerakalai.hashnode.dev](https://ilayaraja-veerakalai.hashnode.dev/terraform-simple-2-tier-aws-architecture?utm_source=hashnode&utm_medium=feed) [Jul 8, 2025](https://hashnode.com/posts/terraform-simple-2-tier-aws-architecture/686cd2a18ef41317bc7fe73f) ### [Kubernetes | Pod Vs ReplicatSets Vs Deployment](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-pod-vs-replicatsets-vs-deployment?utm_source=hashnode&utm_medium=feed) Pod: In Kubernetes, a Pod is the smallest and simplest deployable unit. It represents a single instance of a running process (or group of tightly coupled processes) in a cluster. Here’s a breakdown of Pods: Key Concepts of Pods: 1. Atomic Unit of De... 5 min read · [ilayaraja-veerakalai.hashnode.dev](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-pod-vs-replicatsets-vs-deployment?utm_source=hashnode&utm_medium=feed) [Jul 6, 2025](https://hashnode.com/posts/kubernetes-pod-vs-replicatsets-vs-deployment/686a7d3a5a1408a3e9eb1931) ### [Kubernetes | Why Kubernetes has upper hand when compared to other Orchestration tools?](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-why-kubernetes-has-upper-hand-when-compared-to-other-orchestration-tools?utm_source=hashnode&utm_medium=feed) Kubernetes (K8s) is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. Here’s why it’s essential in modern software development and operations: 1. Container Orchestrat... 4 min read · [ilayaraja-veerakalai.hashnode.dev](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-why-kubernetes-has-upper-hand-when-compared-to-other-orchestration-tools?utm_source=hashnode&utm_medium=feed) [Jul 1, 2025](https://hashnode.com/posts/kubernetes-why-kubernetes-has-upper-hand-when-compared-to-other-orchestration-tools/68636a201d8adc3c9f2ce327) ### [Kubernetes | Architecture Overview](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-architecture-overview?utm_source=hashnode&utm_medium=feed) Kubernetes (K8s) is an open-source container orchestration platform that automates deployment, scaling, and management of containerized applications. Kubernetes follows a client-server architecture with a control plane (master nodes) that manages wor... 3 min read · [ilayaraja-veerakalai.hashnode.dev](https://ilayaraja-veerakalai.hashnode.dev/kubernetes-architecture-overview?utm_source=hashnode&utm_medium=feed) [Jun 25, 2025](https://hashnode.com/posts/kubernetes-architecture-overview/685c290a353ebfa077c0dbbc)