GET http://localhost:8671/ --> Dashboard
GET http://localhost:8671/services/[serviceName] --> Get available instances that have name=serviceName
POST http://localhost:8671/services/[serviceName]?ip=[service ip address]&port=[service port] --> Add new service
PUT http://localhost:8671/services/[serviceName]?ip=[service ip address]&port=[service port] --> Change service status to 'up'
DELETE http://localhost:8671/services/[serviceName]?ip=[service ip address]&port=[service port] --> Change service status to 'down'
docker build . -t service_registry
docker run -p 8671:8671 -t service_registry