Init

.gitignore

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+*.env

Dockerfile

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+FROM jrottenberg/ffmpeg:7.1.1-alpine320
+
+# no glibc
+RUN apk add --no-cache su-exec
+
+RUN mkdir -p /output
+
+COPY stream-archive.sh /stream-archive.sh
+RUN chmod +x /stream-archive.sh
+
+VOLUME ["/output"]
+
+ENTRYPOINT ["/stream-archive.sh"]

compose.yaml

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+services:
+  ffmpeg-archive:
+    build: .
+    container_name: ffmpeg-archive
+    environment:
+      - INPUT=${INPUT:-rtsp://your-stream-url}
+      # uses strftime for naming
+      - OUTPUT=${OUTPUT:-/output/%Y-%m-%d_%H-%M-%S.mkv}
+      - PUID=${PUID:-1000}
+      - PGID=${PGID:-1000}
+    volumes:
+      - ${RECORDINGS_DIR:-./recordings}:/output
+    restart: unless-stopped

stream-archive.sh

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+#!/bin/sh
+set -e
+
+PUID=${PUID:-1000}
+PGID=${PGID:-1000}
+
+# Create group if GID doesn't exist
+if ! getent group "$PGID" > /dev/null 2>&1; then
+    addgroup -g "$PGID" archivegroup
+fi
+GROUP_NAME=$(getent group "$PGID" | cut -d: -f1)
+
+# Create user if UID doesn't exist
+if ! getent passwd "$PUID" > /dev/null 2>&1; then
+    adduser -D -H -u "$PUID" -G "$GROUP_NAME" archiveuser
+fi
+
+chown "$PUID:$PGID" /output
+
+echo "[stream-archive] Running as UID=${PUID} GID=${PGID}"
+echo "[stream-archive] INPUT  = ${INPUT}"
+echo "[stream-archive] OUTPUT = ${OUTPUT}"
+
+exec su-exec "$PUID:$PGID" ffmpeg \
+    -i "${INPUT}" \
+    -c copy \
+    -f segment \
+    -reset_timestamps 1 \
+    -segment_format mkv \
+    -segment_time 3600 \
+    -strftime 1 \
+    "${OUTPUT}"