PoC: K8S Pod-to-Pod Communication (REST API)

Overview

This project is a PoC to demonstrate how 2 Pods in the same namespace can communicate with each other via using Service resource. It consists of two simple FastAPI applications that communicate with each other via their REST APIs.

Applications

App1 (Sender): Receives messages and forwards them to App2.
App2 (Receiver): Receives messages from App1.

Prerequisites

Docker
Kubernetes (with kubectl configured)
Make (optional for using the provided Makefile)

Getting Started

Build and Deploy

You can use the provided Makefile for easy building and deploying:

Build Docker Images:

make build

Deploy to Kubernetes:

make deploy

Port Forwarding

Forward the port from app1-service to access it locally:

make port-forward

Testing

Test the connection between App1 and App2:

make test

Clean Up

To clean up and remove the Kubernetes deployments and services:

make clean

Directory Structure

app1 - Source code for App1.
app2 - Source code for App2.
app1/Dockerfile and app2/Dockerfile - Dockerfiles for building the application images.
k8s - Kubernetes configuration files (app1-deploy.yaml, app2-deploy.yaml, etc.).
Makefile - Automates the build and deploy process.

nawawishkid / poc-k8s-pods-commu