diff --git a/backend/Dockerfile b/backend/Dockerfile
index 350ec34..32334f6 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,13 +1,15 @@
FROM golang:1.25.3 AS build
+ENV GIN_MODE=release
+ENV PORT=4320
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
-RUN GOOS=linux GOARCH=amd64 GOAMD64=v1 go build -pgo=auto -ldflags="-s -w" -o bin/esign-server main.go
+RUN GOOS=linux GOARCH=amd64 GOAMD64=v1 go build -pgo=auto -ldflags="-s -w" -o /bin/esign-server main.go
FROM alpine:latest
WORKDIR /app
-COPY --from=build /app/bin/esign-server .
-EXPOSE 4320
-CMD ["./esign-server"]
\ No newline at end of file
+COPY --from=build /bin/esign-server ./server
+EXPOSE $PORT
+CMD ["./server"]
\ No newline at end of file
diff --git a/index.html b/index.html
index 48829a6..2bf4428 100644
--- a/index.html
+++ b/index.html
@@ -8,7 +8,8 @@
-
+
+