FROM golang:buster as builder WORKDIR /root RUN git clone https://filippo.io/age && cd age/cmd/age && go build -o age . FROM amd64/debian:buster COPY --from=builder /root/age/cmd/age/age /usr/local/bin/age RUN apt-get update && \ apt-get -qq -y full-upgrade && \ apt-get install -y rsync wget openssh-client postgresql-client && \ apt-get clean && \ rm -f /var/lib/apt/lists/*_* RUN mkdir -p /root/.ssh WORKDIR /root COPY do_backup.sh /root/do_backup.sh CMD "/root/do_backup.sh"