Containerize and deploy a microservices application to kubernetes using KOPS

Extending the emartapp forked from devopshydclub/emartapp, to include Kubernetes orchestration on AWS

System Requirements (Local / Cloud)

The scripts folder has all the pre-reqs needed for your "local" machine. Setup for Ubuntu Focal 20.4, but should run on 18 and 22+

• Docker
• Kubectl
• Kops
• awscli
• if using an EC2 instance; t3 medium is recommended

Docker Requirements

To create your own images and run the app w/out kubernetes: docker-compose build docker-compose up

Containers can be pulled directly from dockerhub :

• Node API: docker pull mkcloudpro/emartapi
• Java Web API: docker pull mkcloudpro/emartwebapi
• AngularJS Client: docker pull mkcloudpro/emartclient
• Nginx: docker pull nginx
• MySql: docker pull mysql:5.6
• MongoDB: docker pull mongo

K8s Requirements

• A registered domain name is required for your cluster
• Cluster should have at least 2 worker nodes and 1 master node to avoid pod evictons. Use KopsCmds as a guide for cluster setup.
• All relevant declaration files are contained in kube-app folder.
• Configs use ContainerInit to force a deployment order, you can do this manually following this order; MySQL DB -> MongoDB -> NodeAPI -> WebAPI -> Client -> Nginx

To run configs and setup pods, services, configmaps, persistent-volumes & PV claims: kubectl apply -f <filename>

warning:

• This is not secure enough for a production env : please use secret keys for all passwords.

• If running this on AWS, there will be some charges as it is not completely free tier compatible