added Dockerfile

Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:1.26-alpine AS builder
+
+WORKDIR /app
+
+# Copy go mod and sum files
+COPY go.mod go.sum ./
+
+# Download dependencies
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build statically
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags='-w -s' -o mdhost .
+
+# Final scratch image
+FROM scratch
+
+# Copy binary from builder
+COPY --from=builder /app/mdhost /mdhost
+
+# Run the application - directories will be bind-mounted from host
+CMD ["/mdhost"]