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fix(docker): use rust-musl-cross builder for riscv64 multi-arch #153

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Merged
AlexanderWagnerDev merged 1 commit into from
Aug 11, 2026
Merged

fix(docker): use rust-musl-cross builder for riscv64 multi-arch #153

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21 changes: 14 additions & 7 deletions Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,13 +1,19 @@
# Build stage (Alpine/musl — same libc as runtime; multi-arch friendly)
# syntax=docker/dockerfile:1
# Build stage (musl via rust-musl-cross — same libc as Alpine runtime; multi-arch)
# Standalone (default `docker compose` context `.`):
# docker build -t librtmp2-server .
# Monorepo (parent OpenRTMP with sibling librtmp2/):
# docker build -f librtmp2-server/Dockerfile .
FROM rust:alpine AS builder
ARG TARGETARCH=amd64
FROM --platform=$BUILDPLATFORM ghcr.io/rust-cross/rust-musl-cross:${TARGETARCH}-musl AS builder

# musl release builds static-link OpenSSL; need *-static pkgs for -lssl/-lcrypto.
RUN apk add --no-cache \
musl-dev openssl-dev openssl-libs-static pkgconf git ca-certificates
# Static OpenSSL keeps the musl binary self-contained on Alpine runtime.
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
pkg-config libssl-dev ca-certificates git \
&& rm -rf /var/lib/apt/lists/*

ENV OPENSSL_STATIC=1

ARG LIBRTMP2_GIT=https://github.com/OpenRTMP/librtmp2.git
# Empty (default) = resolve librtmp2 normally via the crates.io `version`
Expand Down Expand Up @@ -40,7 +46,8 @@ RUN set -eu; \
if [ -f /build/librtmp2/Cargo.toml ]; then \
printf '\n[patch."https://github.com/OpenRTMP/librtmp2"]\nlibrtmp2 = { path = "../librtmp2" }\n' >> Cargo.toml; \
fi; \
cargo build --release --features cluster
cargo build --release --features cluster; \
install -Dm755 target/*/release/librtmp2-server /build/out/librtmp2-server

ARG APP_VERSION=""
RUN version="$APP_VERSION" && \
Expand All @@ -58,7 +65,7 @@ RUN apk add --no-cache libgcc libstdc++ openssl ca-certificates wget \
&& mkdir -p /data \
&& chown openrtmp:openrtmp /data

COPY --from=builder /build/librtmp2-server/target/release/librtmp2-server /usr/local/bin/librtmp2-server
COPY --from=builder /build/out/librtmp2-server /usr/local/bin/librtmp2-server
COPY --from=builder /build/librtmp2-server/.env.example /etc/librtmp2-server/.env
COPY --from=builder /build/VERSION /usr/local/share/openrtmp/VERSION
COPY --from=builder /build/librtmp2-server/entrypoint.sh /usr/local/bin/entrypoint.sh
Expand Down