Gateway

Instructions

1. Make sure golang is installed
2. You know the path to your docker.sock (defaults to /var/run/docker)
3. docker-compose up to bring up pre-labeled nginx containers
4. make build && make run (served on 8080)
5. GET - /stats for telemetry

Design

• Selection Algorithm: uses minHeap to keep track of weights and priority of the upstream connections.
• Inmem implementation, although the repo could be replaced with a redisCli that matches the repo interface.

Future Considerations

• I would like to have added more testing, but did not have the time.
• I would use prometheus or other proven telemetry clients, instead of a quick version of my own.
• I would like to have detected if the host network is bound to the docker-network or eth0
• I would like to have added HEAD health checks.