LoadBalancer Tester

This simple aim of the project is to test if a container's load is getting balanced across cluster. For Demonstration we will use DOCKER SWARM to simulate cluster environment which will load balance our requests.

Pre-Requisites

• Docker Engine
• Docker Desktop (optional)
• Portainer Conatiner (optional/UI for Clusters)

Run Locally

Clone the project

git clone https://github.com/dknaix/Load-balancer-tester.git

Go to the project directory

cd Load-balancer-tester

Build Image from Dockerfile

docker build -t flask-lb-tester:v1.0 .

Initialise Docker Swarm

docker swarm init

Create Service

docker service create --replicas 3 --name flask-lb-tester -p 5000:5000 flask-lb-tester:v1.0

Usage/Examples

curl http://localhost:5000

If the Container-ID changes after every request means the load is getting balanced, if not meaning there is some misconfiguration.

Lessons Learned

flask-lb-tester is a light-weight images to quickly test if the a container/pod is getting balanced in a cluster environment. You can build your own version or use build the image from provided Dockerfile.