FROM golang:1.22-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 application RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main . FROM alpine:latest RUN apk --no-cache add ca-certificates WORKDIR /root/ # Copy the binary from builder COPY --from=builder /app/main . EXPOSE 8080 CMD ["./main"]