FROM alpine:3.6 RUN apk add --no-cache ca-certificates ADD _build/cert-manager-acmesolver-linux-amd64 /usr/bin/acmesolver ENTRYPOINT ["/usr/bin/acmesolver"] ARG VCS_REF LABEL org.label-schema.vcs-ref=$VCS_REF \ org.label-schema.vcs-url="https://github.com/jetstack/cert-manager" \ org.label-schema.license="Apache-2.0"