Update Dockerfile

Author: pcmehrdad

Dockerfile

@@ -1,3 +1,4 @@
+# Stage 1: Build the Go application
 FROM golang:1.22.5-alpine AS builder
 # Install required system packages
 RUN apk update && \
@@ -17,16 +18,20 @@ RUN go mod download
 # Build the application
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o proxy-server .
 
-# Intermediate stage to include nc
+# Stage 2: Build the nc binary
 FROM alpine:latest AS nc-builder
 RUN apk add --no-cache netcat-openbsd
 
-# Final stage
+# Stage 3: Final scratch image
 FROM scratch
 WORKDIR /app
+
+# Copy the Go binary and CA certificates
 COPY --from=builder /build/proxy-server .
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=nc-builder /bin/nc /bin/nc
+
+# Copy the nc binary from the nc-builder stage
+COPY --from=nc-builder /usr/bin/nc /bin/nc
 
 EXPOSE 1080
-CMD ["./proxy-server"]
+CMD ["./proxy-server"]