new deployment style: add default env vars & main service key to serv…

…ice definition

protobuf/definition/service.proto

@@ -51,6 +51,7 @@ message Configuration {
   repeated string ports = 3;        // List of ports the container exposes.
   repeated string args = 4;         // Args to pass to the container.
   string command = 5;               // Command to run the container.
+  repeated string env = 6;          // Default env vars to apply to service's instance on runtime.
 }
 
 // A dependency is a configuration of an other container that runs separately from the service.

sdk/service/service.go

@@ -85,5 +85,8 @@ func (s *Service) Create(srv *service.Service) error {
 		srv.Sid = "_" + srv.Hash
 	}
 
+	// apply main service key to service.
+	srv.Configuration.Key = service.MainServiceKey
+
 	return s.db.Save(srv)
 }

server/grpc/api/service.go

@@ -73,6 +73,7 @@ func fromProtoConfiguration(configuration *definition.Configuration) *service.De
 		Ports:       configuration.Ports,
 		Volumes:     configuration.Volumes,
 		VolumesFrom: configuration.VolumesFrom,
+		Env:         configuration.Env,
 	}
 }