AWS DevOps Complete Guide 2026

AWS DevOps Complete Guide 2026

AWS (Amazon Web Services) is the cloud platform of choice for the majority of Indian tech companies. Whether it is Flipkart, Swiggy, Ola, Razorpay, or any of the thousands of startups in Bangalore, Hyderabad, and Mumbai — they run on AWS. As a DevOps engineer, knowing AWS is not optional — it is the infrastructure you will work with every day.

This guide covers the AWS services and tools that appear most frequently in Indian DevOps job descriptions.

The AWS DevOps Services Stack

Category	AWS Service	What It Does
Compute	EC2, Lambda, ECS, EKS	Run applications and containers
Storage	S3, EBS, EFS	Store data, artifacts, backups
Networking	VPC, Route 53, ALB, CloudFront	Network isolation, DNS, load balancing, CDN
CI/CD	CodeCommit, CodeBuild, CodeDeploy, CodePipeline	Automated build, test, and deploy pipeline
IaC	CloudFormation, CDK	Provision infrastructure as code
Monitoring	CloudWatch, X-Ray	Logs, metrics, tracing, alerts
Security	IAM, Secrets Manager, KMS, GuardDuty	Access control, secrets, encryption, threat detection
Containers	ECR, ECS Fargate, EKS	Container registry, serverless containers, managed K8s

Building a CI/CD Pipeline with AWS CodePipeline

AWS CodePipeline connects your source code to your deployment target. Here is a typical pipeline:

Source (CodeCommit/GitHub) → Build (CodeBuild) → Test (CodeBuild) → Deploy (CodeDeploy/ECS/EKS)

A sample buildspec.yml for CodeBuild (equivalent to Jenkinsfile):

version: 0.2

phases:
  pre_build:
    commands:
      - echo Logging in to Amazon ECR...
      - aws ecr get-login-password --region ap-south-1 | docker login --username AWS --password-stdin 123456789.dkr.ecr.ap-south-1.amazonaws.com
      - IMAGE_TAG=$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | cut -c 1-7)

  build:
    commands:
      - echo Building Docker image...
      - docker build -t $ECR_REPOSITORY_URI:$IMAGE_TAG .
      - docker tag $ECR_REPOSITORY_URI:$IMAGE_TAG $ECR_REPOSITORY_URI:latest

  post_build:
    commands:
      - echo Pushing image to ECR...
      - docker push $ECR_REPOSITORY_URI:$IMAGE_TAG
      - docker push $ECR_REPOSITORY_URI:latest
      - echo Writing image definitions file...
      - printf '[{"name":"myapp","imageUri":"%s"}]' $ECR_REPOSITORY_URI:$IMAGE_TAG > imagedefinitions.json

artifacts:
  files:
    - imagedefinitions.json

AWS EKS: Managed Kubernetes

EKS (Elastic Kubernetes Service) is AWS's managed Kubernetes offering. It handles the control plane for you — you only manage the worker nodes (or use Fargate for fully serverless).

# Install eksctl (the EKS CLI tool)
curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
sudo mv /tmp/eksctl /usr/local/bin

# Create an EKS cluster in Mumbai region
eksctl create cluster   --name production-cluster   --region ap-south-1   --nodegroup-name standard-workers   --node-type t3.medium   --nodes 3   --nodes-min 2   --nodes-Max 10   --managed

# Update kubeconfig to connect kubectl to EKS
aws eks update-kubeconfig --name production-cluster --region ap-south-1

# Verify connection
kubectl get nodes

IAM: The Most Important AWS Service for DevOps

IAM (Identity and Access Management) controls who can do what on AWS. Getting IAM wrong is the most common cause of both security incidents and "access denied" errors.

Key IAM concepts:

• Users: Human identities (developers, ops engineers)
• Roles: Identities assumed by services (EC2 can assume a role to access S3)
• Policies: JSON documents defining allowed/denied actions
• Groups: Collections of users sharing the same permissions

Example policy that allows a CI/CD system to push images to ECR:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ecr:GetAuthorizationToken",
        "ecr:BatchCheckLayerAvailability",
        "ecr:PutImage",
        "ecr:InitiateLayerUpload",
        "ecr:UploadLayerPart",
        "ecr:CompleteLayerUpload"
      ],
      "Resource": "arn:aws:ecr:ap-south-1:123456789:repository/myapp"
    }
  ]
}

AWS Certifications for DevOps Engineers

Certification	Level	Salary Impact (India)
AWS Cloud Practitioner	Foundational	Good for freshers, +₹1-2 LPA
AWS Solutions Architect Associate	Associate	Most valued, +₹2-4 LPA
AWS DevOps Engineer Professional	Professional	Premium roles, +₹4-8 LPA

Our DevOps training program covers all the key AWS services with hands-on labs in the Mumbai region (ap-south-1), giving you real practical experience with EC2, VPC, EKS, ECR, CodePipeline, and CloudWatch. Students who complete our program are well-prepared for the AWS Solutions Architect Associate exam. View course details →