Overview

Example for Amazon ECS Canary Service

How to use

1. Run up

   docker compose up --build

2. Terraform apply

   terraform apply

3. Docker build

   aws ecr get-login-password --region ap-south-1 | docker login --username AWS --password-stdin xxxxx.dkr.ecr.ap-south-1.amazonaws.com
   docker build --platform=linux/amd64 -t http-server/canary -f docker/Dockerfile .
   aws ecr get-login-password --region ap-south-1 | docker login --username AWS --password-stdin xxxxx.dkr.ecr.ap-south-1.amazonaws.com
   docker build --platform=linux/amd64 -t http-server/main -f docker/Dockerfile .

4. Push image

   docker tag http-server/canary:latest xxxxx.dkr.ecr.ap-south-1.amazonaws.com/http-server/canary:latest
   docker push xxxxx.dkr.ecr.ap-south-1.amazonaws.com/http-server/canary:latest
   docker tag http-server/main:latest xxxxx.dkr.ecr.ap-south-1.amazonaws.com/http-server/main:latest
   docker push xxxxx.dkr.ecr.ap-south-1.amazonaws.com/http-server/main:latest

5. Request

   @canary_counter=0 ; \
   main_counter=0 ; \
   for i in $$(seq 1 200) ; do \
   	response=$$(curl -s $(ALB_DNS)) ; \
   	echo "$$response" | grep -q "app-canary" && canary_counter=$$((canary_counter+1)) ; \
   	echo "$$response" | grep -q "app-main" && main_counter=$$((main_counter+1)) ; \
   done ; \
   echo "Canary responses: $$canary_counter" ; \
   echo "Main responses: $$main_counter"