FROM paritytech/ci-linux:production as builder LABEL description="This is the build stage for Polkadot. Here we create the binary." ARG PROFILE=release WORKDIR /polkadot COPY . /polkadot RUN cargo build --$PROFILE # ===== SECOND STAGE ====== FROM debian:buster-slim LABEL description="This is the 2nd stage: a very small image where we copy the Polkadot binary." ARG PROFILE=release COPY --from=builder /polkadot/target/$PROFILE/polkadot /usr/local/bin RUN useradd -m -u 1000 -U -s /bin/sh -d /polkadot polkadot && \ mkdir -p /polkadot/.local/share/polkadot && \ chown -R polkadot:polkadot /polkadot/.local && \ ln -s /polkadot/.local/share/polkadot /data && \ rm -rf /usr/bin /usr/sbin USER polkadot EXPOSE 30333 9933 9944 VOLUME ["/data"] CMD ["/usr/local/bin/polkadot"]