add heavy build

Dockerfile

@@ -0,0 +1,34 @@
+FROM golang:1.23-alpine AS builder
+
+WORKDIR /app
+
+# Install build dependencies
+RUN apk add --no-cache git
+
+# Copy module files first to leverage Docker cache for dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the rest of the source code
+COPY . .
+
+# Argument to control the number of generated files (default to 5000 for a moderate delay)
+ARG FILE_COUNT=5000
+
+# Generate the dummy source code to simulate a large codebase
+RUN echo "Generating $FILE_COUNT dummy files..." && \
+    go run gen.go -count $FILE_COUNT
+
+# Build the application
+# Using -a to force rebuilding of all packages to simulate a fresh, heavy build
+RUN echo "Starting heavy build..." && \
+    go build -a -o app .
+
+# Final stage: Create a minimal image
+FROM alpine:latest
+
+WORKDIR /root/
+
+COPY --from=builder /app/app .
+
+CMD ["./app"]