Prepare for deployment

Dockerfile

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+# Build stage
+FROM golang:1.22-alpine AS builder
+
+WORKDIR /app
+
+# Copy and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the source code
+COPY . .
+
+# Install required packages for cgo
+RUN apk add --no-cache gcc musl-dev
+
+# Build with cgo enabled
+ENV CGO_ENABLED=1
+
+# Build the Go application
+RUN go build -o app .
+
+# Runtime stage
+FROM alpine:latest
+
+WORKDIR /root/
+
+# Install SQLite CLI for runtime
+RUN apk add --no-cache sqlite
+
+# Copy the binary from the builder stage
+COPY --from=builder /app/app .
+COPY --from=builder /app/static/index.html.tmpl ./static/index.html.tmpl
+COPY --from=builder /app/static/result.html.tmpl ./static/result.html.tmpl
+
+# Expose the port the app runs on
+EXPOSE 8080
+
+# Run the application
+CMD ["./app"]
+