FROM golang:1.14.2-buster AS builder COPY . /app RUN cd /app && CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -ldflags='-linkmode external -extldflags "-static" -s -w' -o openvpn-user FROM alpine:3.13 WORKDIR /app COPY --from=builder /app/openvpn-user /usr/local/bin