I'm trying to deploy multiple services to Amazon ECS by using Docker Compose (I know it's retiring soon, it's part of my job training), and it's failing with the error
A load balancer cannot be attached to multiple subnets in the same Availability Zone (Service: AmazonElasticLoadBalancing; Status Code: 400; Error Code: InvalidConfigurationRequest; Request ID: 66415eb3-da76-447a-9c46-94838c05d0a9; Proxy: null)
I don't understand why I'm getting this as I should just be using the automatic load balancer.
My colleagues are also working to do the same steps, and get past creating the load balancer, and none of us can figure out why, given we have the same docker-compose.yml file. We also checked the docker compose converts, and mine is significantly more verbose for some reason.
Here's the yml file:
version: '2'
services:
account-server:
container_name: account-server
image: 651872020896.dkr.ecr.us-east-1.amazonaws.com/account-server:latest
ports:
- 8080:8080
networks:
- binary-banking-network
env_file:
- .env
auth-server:
container_name: auth-server
image: 651872020896.dkr.ecr.us-east-1.amazonaws.com/auth-server:latest
ports:
- 8081:8081
networks:
- binary-banking-network
env_file:
- .env
branch-server:
container_name: branch-server
image: 651872020896.dkr.ecr.us-east-1.amazonaws.com/branch-server:latest
ports:
- 8082:8082
networks:
- binary-banking-network
env_file:
- .env
card-server:
container_name: card-server
image: 651872020896.dkr.ecr.us-east-1.amazonaws.com/card-server:latest
ports:
- 8083:8083
networks:
- binary-banking-network
env_file:
- .env
user-server:
container_name: user-server
image: 651872020896.dkr.ecr.us-east-1.amazonaws.com/user-server:latest
ports:
- 8085:8085
networks:
- binary-banking-network
env_file:
- .env
networks:
binary-banking-network:
driver: bridge
