https://jacobmartins.com/2016/03/14/web-app-using-microservices-in-go-part-1-design/
Open 5 terminals
cd ./client, ./keyValueStore, ./fileStorage, ./master, ./taskStore and go build each of them
# start keyValueStore (will be hosted on :3330)
./keyValueStore
# connect the fileStorage
./fileStorage :3332 :3330
# connect the taskStore
./taskStore :3331 :3330
# connect the master (hosted on :3333)
./master :3333 :3330
# connect workers
./worker :3330 2
# connect the client (will be hosted on :3334)
./client :3330