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Docker Build for LiveKit Rust SDKs

Builds the LiveKit Rust SDK and FFI library inside a manylinux_2_28 container, ensuring the resulting binaries are compatible with most Linux distributions (glibc 2.28+, i.e. RHEL 8, Ubuntu 20.04, Debian 11, and newer). The x86_64 build uses a CUDA-enabled base image for NVIDIA hardware-accelerated video codec support.

How it works

The Dockerfile builds an environment image containing only system dependencies and the Rust toolchain — no source code is copied in. At build time, the host workspace is volume-mounted into the container (-v $PWD:/workspace). This matches the CI approach used in ffi-builds.yml and means:

  • Git submodules (yuv-sys/libyuv, livekit-protocol/protocol) are available automatically
  • The target/ directory persists on the host, so incremental builds are fast
  • No multi-gigabyte build context is sent to the Docker daemon

Prerequisites

git submodule update --init

Makefile targets

cd docker

# Build environment images (done automatically by sdk/ffi targets)
make env-x86_64
make env-aarch64

# Build the SDK (livekit crate)
make sdk-x86_64
make sdk-aarch64

# Build the FFI library (livekit-ffi crate)
make ffi-x86_64
make ffi-aarch64

# Remove environment images
make clean

Build artifacts are written to target/<triple>/release/ in the host workspace.

File ownership

Because the container runs as root, files created in target/ will be root-owned. To reclaim ownership:

sudo chown -R $(id -u):$(id -g) target/