Configure gateway service hosts through environment

Author: hwan20202

src/main/resources/application.yml

@@ -17,26 +17,26 @@ spring:
               enabled: false
           routes:
             - id: notification-service-route
-              uri: http://${sm://NOTIFICATION_HOST}:8080
+              uri: http://${NOTIFICATION_HOST:localhost}:8080
               predicates:
                 - Path=/api/v1/notification/**
               filters:
                 - AddRequestHeader=X-Request-Source, Gateway
             - id: ledger-service-route
-              uri: http://${sm://LEDGER_HOST}:8080
+              uri: http://${LEDGER_HOST:localhost}:8080
               predicates:
                 - Path=/api/v1/ledger-entry/**
               filters:
                 - StripPrefix=2
                 - AddRequestHeader=X-Request-Source, Gateway
             - id: backend-api-route
-              uri: http://${sm://BACKEND_HOST}:8080
+              uri: http://${BACKEND_HOST:localhost}:8080
               predicates:
                 - Path=/api/**
               filters:
                 - AddRequestHeader=X-Request-Source, Gateway
             - id: backend-resource-route
-              uri: http://${sm://BACKEND_HOST}:8080
+              uri: http://${BACKEND_HOST:localhost}:8080
               predicates:
                 - Path=/resources/files/**
               filters: