FROM golang:1.9 COPY . /go/src/github.com/play-with-docker/play-with-docker WORKDIR /go/src/github.com/play-with-docker/play-with-docker RUN ssh-keygen -N "" -t rsa -f /etc/ssh/ssh_host_rsa_key >/dev/null RUN CGO_ENABLED=0 go build -a -installsuffix nocgo -o /go/bin/play-with-docker . FROM alpine RUN apk --update add ca-certificates RUN mkdir -p /app/pwd COPY --from=0 /go/bin/play-with-docker /app/play-with-docker COPY --from=0 /etc/ssh/ssh_host_rsa_key /etc/ssh/ssh_host_rsa_key COPY ./www /app/www WORKDIR /app CMD ["./play-with-docker"] EXPOSE 3000