goloco

Introduction

goloco is a sample application based on microservices architecture. Its in very intial stages and I use it as my playground application to experiment with microservices.

Microservices

There are 3 microservices running written in different languages communicating over GRPC.

• frontend (written in Golang)
• locationservice (written in Python)
• recommendationservice (written in Kotlin)

Database

There are currently two databses that I added in the application

• Postgres (in an external cluster)
• Redis (dockerized and deployed in kubernetes cluster)

Deployment

Skaffold: Application is deployed to Kubernetes with a single command using Skaffold.

Communication

• Kubernetes: The app is designed to run on Kubernetes.
• gRPC: Microservices use a high volume of gRPC calls to communicate to each other.

Installation

1. Install tools to run a Kubernetes cluster locally:

   • Local Kubernetes cluster deployment tool:
     • Minikube.
     • Docker for Desktop: It provides Kubernetes support as noted here.
   • skaffold
   1. Run kubectl get nodes to verify you're connected to “Kubernetes on Docker”.

2. Run skaffold run This will build and deploy the application.