andresaaap / jenkins-cicd-static-web-microservice

Jenkins CI/CD pipeline for microservices, pushing Docker containers to the Docker repository and deploying them to a Kubernetes cluster in AWS EKS

Intro

This is a Jenkins CI CI/CD pipeline for microservices, pushing Docker containers to the Docker repository and deploying them to a Kubernetes cluster in AWS EKS. This will create value by making the code building process and deploying faster and automatic.

Install

To be able to use this CI/CD pipeline we will need:

• Jenkins
• eksctl
• aws cli
• docker
• kubectl

1. To install Jenkins please follow this guide http://jenkins.io/doc/book/installing/
2. To install docker please follow this guide https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-18-04
3. To install eksctl, aws cli and kubectl follow this guide https://docs.aws.amazon.com/eks/latest/userguide/getting-started-eksctl.html

Project explanation

The pipeline has the following stages. First, there is a linting stage using the library tidy to lint the HTML and catch errors in the HTML. Please look at the image: lint.png

Then, I use docker cli to build the image and push it to a docker repository. Please look at the images: build-image.png push-image.png docker-image-repository.png

Then, there is a stage where I use kubectl to deploy the docker image to the cluster in the blue and green pod and create a service that redirects traffic to the blue pod. Please look at the images: deploy-blue-container.png deploy-green-container.png service-redirect-blue.png

Then, there is a stage where the service is updated to redirect traffic to the green pod. Please look at the image: service-redirect-green.png

Finally, the website can be access using the URL of the service and the port. Please look at the images: website.png service-pods.png

Resources & Links

• Great starting examples of CICD pipelines for kubernetes apps using CircleCI and AWS EKS
• Testing a container app or microservices app to deploy it to an AWS EKS cluster
• Errors in kubernetes and debugging
• How to configure and execute a rolling update strategy in kubernetes?
• How to install docker, aws cli, eksctl, kubectl for Jenkins in Linux Ubuntu 18.04?
• Simple blue-green deployment in kubernetes using minikube, Capstone project, Cloud DevOps Nanodegree
• Capstone project, Cloud DevOps Nanodegree FAQ