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An experimental Nodejs/React project to test authentication, payments, async events and concurrency on a microservices architect using TypeScript, Docker and k8s.

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bhuone-garbu/ms-ticketing

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Bhuwan Garbuja

Intro

This is a second part after learnings from previous experimentation to build microservice and cover more concepts.

Tech Stack:

An attempt to build a proper (Full Stack) ticket booking system with microservices. The front-end (FE) is less of a focus on this project.

  • NodeJS/Express (TypeScript based)
  • React/Next.js (JavaScript based)
  • Docker
  • Kubernetes (k8s) / Ingress Nginx
  • Skaffold
  • MongoDB
  • NATS Streaming Server
  • Stripe for payments

Some concepts I've covered (or will cover) for reference:

  • Communicating services within a k8s cluster
  • Server side rendering with Next.js
  • Authentication strategies
  • Designing micro-services with k8s object configs
  • Use of NATS Streaming Server
  • Handling concurrency with async events
  • (OCC) Optimistic concurrency control idea with Mongoose/MongoDB
  • Bull (library with Redis queue) for delayed tasks processing
  • Using Github Actions

Getting started

TODO

Install kubectl either via Docker for Mac/Windows or via minikube.

Reminder: The following secrets are needed to be shared and accessible to the cluster:

  • jwt-secret - JWT_KEY
  • stripe-secret - STRIPE_KEY
kubectl create secret generic jwt-secret --from-literal=JWT_KEY=somescret
kubectl create secret generic strip-secret --from-literal=STRIPE_KEY=strip-secret-key

All the deployments of object configuration for k8s are inside the infra/k8s director. Check the README over there too to view more inital requirements.

Dev environment

The following stack are assumed installed in the machine and working:

Currently the projects uses ticketing.dev for the main root url. Set your hosts file to point this domain to localhost (or 127.0.0.1).

Then run command on the root of this project to deploy all the services.

skaffold dev

Prod deployment

Using digital ocean

doctl auth login

To create cluster context for kubectl

doctl kubernetes cluster kubeconfig save <cluster_name>

In case, new to view contexts (or switch context):

kubectl config view
kubectl config use-context <context_name>