hello

Loadbalanced Hello World Webservers in many programming languages

These are simple examples to show how webservers work in multiple languages.

for performance testing, see the Arjay the Dev challange

https://www.youtube.com/watch?v=QGWKCaglSBI

https://github.com/arjaythedev/twelve-dollar-server-challenge/pulls

Components

• haproxy for loadbalancing
• go lang
• nodejs
• java (on jetty)
• c++
• perl
• python
• rust (to come)
• lua
• c#

AWS

Deploy to AWS using ECR and ECS:

# Authenticate with ECR
aws ecr get-login-password --region eu-central-1 | docker login --username AWS --password-stdin 138546162266.dkr.ecr.eu-central-1.amazonaws.com

# Build and push
docker build -t 138546162266.dkr.ecr.eu-central-1.amazonaws.com/haproxy haproxy/
docker push 138546162266.dkr.ecr.eu-central-1.amazonaws.com/haproxy

docker build -t 138546162266.dkr.ecr.eu-central-1.amazonaws.com/golang web/golang/
docker push 138546162266.dkr.ecr.eu-central-1.amazonaws.com/golang

docker build -t 138546162266.dkr.ecr.eu-central-1.amazonaws.com/nodejs web/nodejs/
docker push 138546162266.dkr.ecr.eu-central-1.amazonaws.com/nodejs

Console links:

• EC2: https://eu-central-1.console.aws.amazon.com/ec2/v2/home
• ECS: https://eu-central-1.console.aws.amazon.com/ecs/home

Local Build & Run

Build images locally with alpine:edge base:

# Build all web servers
docker build -t haproxy haproxy/
docker build -t golang web/golang/
docker build -t nodejs web/nodejs/
docker build -t java web/jetty/
docker build -t csharp web/csharp/
docker build -t python web/python/
docker build -t flask web/flask/
docker build -t perl web/perl/
docker build -t rust web/rust/
docker build -t lua web/lua/
docker build -t c web/c/
docker build -t cpp 'web/c++/'

Run containers locally:

# Start backends
docker run -d --name golang -p 8001:8080 golang
docker run -d --name nodejs -p 8002:8080 nodejs
docker run -d --name java -p 8003:8080 java
docker run -d --name python -p 8004:8080 python
docker run -d --name flask -p 8005:8080 flask
docker run -d --name perl -p 8006:8080 perl
docker run -d --name rust -p 8007:8080 rust
docker run -d --name lua -p 8008:8080 lua
docker run -d --name csharp -p 8009:8080 csharp
docker run -d --name c -p 8010:8080 c
docker run -d --name cpp -p 8011:8080 cpp

# Start HAProxy load balancer
docker run -d --name haproxy -p 80:80 haproxy

Clean up:

docker stop golang nodejs java python flask perl rust lua csharp c cpp haproxy
docker rm golang nodejs java python flask perl rust lua csharp c cpp haproxy