Add OCI Build Script

Dockerfile

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+# Build Stage
+FROM golang:1.22-alpine AS builder
+
+WORKDIR /app
+
+# Install dependencies
+RUN apk add --no-cache git
+
+# Copy go modules and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source files
+COPY ./cmd/simpleproxy ./cmd/simpleproxy
+
+# Build the binary with optimizations
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o /app/simpleproxy ./cmd/simpleproxy
+
+# Final Minimal Image
+FROM alpine:latest
+
+WORKDIR /root/
+
+# Copy the compiled binary from the builder stage
+COPY --from=builder /app/simpleproxy .
+
+# Run the binary
+ENTRYPOINT ["./simpleproxy"]