# Build stage FROM golang:1.23-alpine AS builder WORKDIR /app # Copy go mod files COPY go.mod go.sum ./ # Download dependencies RUN go mod download # Copy source code COPY . . # Build the binary RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o handler . # Final stage FROM alpine:latest # Install ca-certificates RUN apk --no-cache add ca-certificates WORKDIR /app # Copy the binary from builder stage COPY --from=builder /app/handler . # Run the handler CMD ["./handler"]