go run cmd/main.go
curl http://localhost:3000/api/health
curl -X POST http://localhost:3000/api/users -H "Content-Type: application/json" -d '{"id":"1","username":"john","email":"john@example.com"}'
curl http://localhost:8080/api/health
curl -X POST http://localhost:8080/api/users -H "Content-Type: application/json" -d '{"id":"1","username":"john","email":"john@example.com"}'
docker build -t golang-crud .
docker compose up
Install Docker Compose on Ubuntu