rajeever35 / capstone

Udacity Capstone project

Cloud DevOps Engineer Capstone Project

Capstone project of the Udacity DevOps Engineer Nanodegree

Project Tasks:

• Working in AWS
• Using Jenkins to implement Continuous Integration and Continuous Deployment
• Building pipelines
• Working with CloudFormation to deploy clusters
• Building Kubernetes clusters
• Building Docker containers in pipelines

In this project I have applied the skills and knowledge which were developed throughout the Cloud DevOps Nanodegree program.

Application

The application used here is a basic website with an index.html page that runs over the NGINX server. I have created a CI/CD pipeline that deploys website to a cluster in AWS EKS which is Rollout Deployment.

Kubernetes Cluster

Cloudformation is used to deploy the Kubernetes Cluster and the NodeGroup. The code is in cloudformation_files directory. It is divided in two stacks, one for the network (network.yml) and a second one for the cluster itself (AWS_EKS.yml).

Jenkins Pipeline

I am using a CI/CD pipeline on a rolling deployment. On each HTML change, the docker image is pushed to AWS and the Kubernetes pods are rolled out so they restart with the new image from the repository. There is a load balancer before the exposed 8000 TCP ports to avoid having downtime. These are the steps in more detail:


1. Create network environment to the AWS

./create.sh capstone-network network.yml network-parameters.json

2. Then create AWS ELK cluster

./create.sh capstone-eks AWS_EKS.yml AWS_EKS_parameters.json

3. Create Image

docker-compose build

4. Tag & Push

docker tag capstone:latest rajxxx/capstone:latest

docker push rajxxx/capstone:latest

5. Start Docker Container

docker container run -d rajxxx/capstone:latest

6. Set current kubectl context

kubectl config use-context arn:aws:eks:us-east-1:418573230812:cluster/AWSEKSCLUSTER

7. Deployment

kubectl apply -f kubernetes_files/deploy.yml kubectl apply -f kubernetes_files/LoadBalancer.yml

7. Rollout Deployment

Rollout the pods to use the new pushed image.

kubectl rollout restart deployment/application

View the public web page

Finally, enter the public DNS record in the web browser to access the page.

$ kubectl get deployment
NAME         READY   UP-TO-DATE   AVAILABLE   AGE
application   1/1     1            1           67m

Website Url :- http://a51b38bfe87114c2bbe51d289c244393-131057743.us-east-1.elb.amazonaws.com:8000/