mirror of
https://github.com/blakeblackshear/frigate.git
synced 2026-10-19 21:22:50 +03:00
keep /config out of the root environment in the frigate run script
The script exported HOME=/config and prepended /config/.local/lib to LD_LIBRARY_PATH while still root, then ran python3, ffmpeg, grep, and opt_in_out as root. The runtime user owns /config, so it could plant a .pth file in the user site-packages or a library on the loader path and get code run as root on the next start. Root helpers now run with root's environment (and python3 -I), and HOME, LD_LIBRARY_PATH, and PATH reach only the dropped process through env on the s6-setuidgid line. opt_in_out runs as the runtime user, so the openvino marker no longer gets written into /config by root.
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@@ -11,30 +11,14 @@ if [[ "$(id -u)" -eq 0 ]]; then
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fi
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fi
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# /root survives s6-setuidgid and breaks cache writes after the drop; set
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# before opt_in_out so the opt-out marker lands where the service will look
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if [[ "$runs_as_root" -eq 0 ]]; then
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export HOME=/config
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fi
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# detector runtimes installed at first start (pip install --user) live under
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# $HOME/.local; the dynamic loader only reads LD_LIBRARY_PATH at exec time
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export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}${HOME}/.local/lib"
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export PATH="${PATH}:${HOME}/.local/bin"
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# opt out of openvino telemetry
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if [ -e /usr/local/bin/opt_in_out ]; then
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/usr/local/bin/opt_in_out --opt_out > /dev/null 2>&1
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fi
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# Logs should be sent to stdout so that s6 can collect them
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# Tell S6-Overlay not to restart this service
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s6-svc -O .
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# Runs as root before any /config path enters the environment; -I skips the
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# user site-packages under $HOME
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function set_libva_version() {
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local ffmpeg_path
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ffmpeg_path=$(python3 /usr/local/ffmpeg/get_ffmpeg_path.py)
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ffmpeg_path=$(python3 -I /usr/local/ffmpeg/get_ffmpeg_path.py)
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LIBAVFORMAT_VERSION_MAJOR=$("$ffmpeg_path" -version | grep -Po "libavformat\W+\K\d+")
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export LIBAVFORMAT_VERSION_MAJOR
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}
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@@ -42,14 +26,30 @@ function set_libva_version() {
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echo "[INFO] Preparing Frigate..."
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set_libva_version
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# HOME=/root survives s6-setuidgid, so the drop sets HOME=/config. The runtime
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# user owns /config, so these paths go only to the service process, never to
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# root. Detector runtimes installed at first start (pip install --user) live
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# under $HOME/.local.
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run_as=()
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runtime_home="${HOME}"
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if [[ "$(id -u)" -eq 0 && "$runs_as_root" -eq 0 ]]; then
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run_as=(s6-setuidgid frigate)
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runtime_home=/config
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fi
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run_as+=(env
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"HOME=${runtime_home}"
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"LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}${runtime_home}/.local/lib"
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"PATH=${PATH}:${runtime_home}/.local/bin")
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# opt out of openvino telemetry; the marker lands under the service's HOME
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if [ -e /usr/local/bin/opt_in_out ]; then
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"${run_as[@]}" /usr/local/bin/opt_in_out --opt_out > /dev/null 2>&1
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fi
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echo "[INFO] Starting Frigate..."
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cd /opt/frigate || echo "[ERROR] Failed to change working directory to /opt/frigate"
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# Replace the bash process with the Frigate process, redirecting stderr to stdout
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exec 2>&1
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if [[ "$(id -u)" -ne 0 || "$runs_as_root" -eq 1 ]]; then
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exec python3 -u -m frigate
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else
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exec s6-setuidgid frigate python3 -u -m frigate
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fi
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exec "${run_as[@]}" python3 -u -m frigate
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