Optimised Docker Image less than 12mb

Author: Shatwik7

Dockerfile

@@ -1,14 +1,26 @@
-FROM golang:1.23.5-alpine
+# Build Stage
+FROM golang:1.23.5-alpine AS builder
 
 WORKDIR /app
 
+# Install binutils for 'strip' command
+RUN apk add --no-cache binutils
+
 COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
 
-RUN go build -o main .
+RUN go build -o main . && \
+    strip main  # Reduce binary size
+
+# Final Minimal Image
+FROM alpine:latest
+
+WORKDIR /app
+
+COPY --from=builder /app/main .
 
 EXPOSE 2345
 
-CMD ["./main"]
+CMD ["./main"]