# syntax=docker/dockerfile:1 FROM docker.io/rust:1.58-bullseye AS builder WORKDIR /usr/src/conduit # Install required packages to build Conduit and it's dependencies RUN apt update && apt -y install libclang-dev # == Build dependencies without our own code separately for caching == # # Need a fake main.rs since Cargo refuses to build anything otherwise. # # See https://github.com/rust-lang/cargo/issues/2644 for a Cargo feature # request that would allow just dependencies to be compiled, presumably # regardless of whether source files are available. RUN mkdir src && touch src/lib.rs && echo 'fn main() {}' > src/main.rs COPY Cargo.toml Cargo.lock ./ RUN cargo build --release && rm -r src # Copy over actual Conduit sources COPY src src # main.rs and lib.rs need their timestamp updated for this to work correctly since # otherwise the build with the fake main.rs from above is newer than the # source files (COPY preserves timestamps). # # Builds conduit and places the binary at /usr/src/conduit/target/release/conduit RUN touch src/main.rs && touch src/lib.rs && cargo build --release # --------------------------------------------------------------------------------------------------------------- # Stuff below this line actually ends up in the resulting docker image # --------------------------------------------------------------------------------------------------------------- FROM docker.io/debian:bullseye-slim AS runner # Standard port on which Conduit launches. # You still need to map the port when using the docker command or docker-compose. EXPOSE 6167 ENV CONDUIT_PORT=6167 \ CONDUIT_ADDRESS="0.0.0.0" \ CONDUIT_DATABASE_PATH=/var/lib/matrix-conduit \ CONDUIT_CONFIG='' # Set no config file to do all configuration with env vars # Conduit needs: # ca-certificates: for https # iproute2 & wget: for the healthcheck script RUN apt update && apt -y install \ ca-certificates \ iproute2 \ wget \ && rm -rf /var/lib/apt/lists/* # Created directory for the database and media files RUN mkdir -p /srv/conduit/.local/share/conduit # Test if Conduit is still alive, uses the same endpoint as Element COPY ./docker/healthcheck.sh /srv/conduit/healthcheck.sh HEALTHCHECK --start-period=5s --interval=5s CMD ./healthcheck.sh # Copy over the actual Conduit binary from the builder stage COPY --from=builder /usr/src/conduit/target/release/conduit /srv/conduit/conduit # Improve security: Don't run stuff as root, that does not need to run as root # Add 'conduit' user and group (100:82). The UID:GID choice is to be compatible # with previous, Alpine-based containers, where the user and group were both # named 'www-data'. RUN set -x ; \ groupadd -r -g 82 conduit ; \ useradd -r -M -d /srv/conduit -o -u 100 -g conduit conduit && exit 0 ; exit 1 # Change ownership of Conduit files to conduit user and group and make the healthcheck executable: RUN chown -cR conduit:conduit /srv/conduit && \ chmod +x /srv/conduit/healthcheck.sh # Change user to conduit, no root permissions afterwards: USER conduit # Set container home directory WORKDIR /srv/conduit # Run Conduit and print backtraces on panics ENV RUST_BACKTRACE=1 ENTRYPOINT [ "/srv/conduit/conduit" ]