diff --git a/Dockerfile b/Dockerfile
index 7011088..a938575 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,10 @@
 FROM amazoncorretto:17-alpine
 
-COPY ./web/dist/ /web/dist/
-COPY ./target/scala-2.13/WeatherTool-assembly-0.1.1-SNAPSHOT.jar /app.jar
+WORKDIR /app
+
+COPY ./web/dist/ web/dist/
+COPY ./target/scala-2.13/WeatherTool-assembly-0.1.1-SNAPSHOT.jar app.jar
 
 VOLUME /app/data
 
-CMD ["java", "-jar", "/app.jar"]
\ No newline at end of file
+CMD ["java", "-jar", "app.jar"]
\ No newline at end of file
diff --git a/Dockerfile.local b/Dockerfile.local
index bd1c4e5..8018270 100644
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -7,9 +7,11 @@ RUN sbt clean assembly
 
 FROM amazoncorretto:17-alpine
 
-COPY --from=build /app/web/dist/ /web/dist/
-COPY --from=build /app/target/scala-2.13/WeatherTool-assembly-0.1.1-SNAPSHOT.jar /app.jar
+WORKDIR /app
+
+COPY --from=build /app/web/dist/ web/dist/
+COPY --from=build /app/target/scala-2.13/WeatherTool-assembly-0.1.1-SNAPSHOT.jar app.jar
 
 VOLUME /app/data
 
-CMD ["java", "-jar", "/app.jar"]
+CMD ["java", "-jar", "app.jar"]
diff --git a/README.md b/README.md
index d0a7ed7..509ebc5 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,12 @@ Run one file
 fly scale count 0
 ```
 
+```
+// check display
+fly ssh console
+df -h
+```
+
 ```
 fly scale memory 512
 ```
\ No newline at end of file
diff --git a/src/main/scala/data/DataService.scala b/src/main/scala/data/DataService.scala
index 547b555..85dde00 100644
--- a/src/main/scala/data/DataService.scala
+++ b/src/main/scala/data/DataService.scala
@@ -55,7 +55,7 @@ class DataService(log: Logger[IO]) {
   }
 
   def getBinaryChunk(offset: Int, length: Int, fileName: String): IO[Array[Byte]] = {
-    IO {
+    IO.blocking {
       val source = Source.fromFile(s"$GRIB_FOLDER/$fileName", "ISO-8859-1")
       try {
         source.slice(offset, offset + length).map(_.toByte).toArray
diff --git a/src/main/scala/server/Server.scala b/src/main/scala/server/Server.scala
index 680748a..ad4ac18 100644
--- a/src/main/scala/server/Server.scala
+++ b/src/main/scala/server/Server.scala
@@ -62,7 +62,6 @@ class Server(postgresService: PostgresService, dataService: DataService, fetch:
     case GET -> Root / "show" / "grib-list" =>
       dataService.getFileList().flatMap(fileList => Ok(fileList.asJson))
 
-      // TODO implement binary-chunk/ get request
     case GET -> Root / "grib" / "binary-chunk" / ValidateInt(binaryOffset) / ValidateInt(binaryLength) / fileName =>
       dataService.getBinaryChunk(binaryOffset, binaryLength, fileName).flatMap(buffer => Ok(buffer))