FROM docker.io/library/ubuntu:22.04 # show backtraces ENV RUST_BACKTRACE 1 # install tools and dependencies RUN apt-get update && \ DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \ ca-certificates && \ # apt cleanup apt-get autoremove -y && \ apt-get clean && \ find /var/lib/apt/lists/ -type f -not -name lock -delete; \ # add user and link ~/.local/share/polkadot to /data useradd -m -u 1000 -U -s /bin/sh -d /polkadot polkadot && \ mkdir -p /data /polkadot/.local/share && \ chown -R polkadot:polkadot /data && \ ln -s /data /polkadot/.local/share/node-template USER polkadot # copy the compiled binary to the container COPY --chown=polkadot:polkadot --chmod=774 node-template /usr/bin/node-template # check if executable works in this container RUN /usr/bin/node-template --version # ws_port EXPOSE 9930 9333 9944 30333 30334 CMD ["/usr/bin/node-template"]