RTSP offshore unifi protect cam stream backup with systemd

gistfile1.txt

Made into systemd service with https://northernlightlabs.se/2014-07-05/systemd-status-mail-on-unit-failure.html and added:
ExecStartPre=-/usr/bin/docker stop unifi-cam1
ExecStop=/usr/bin/docker stop unifi-cam1
ExecStopPost=/bin/sleep 20

Cleanup with cron:
ls -1t /path/cam1-*.mp4 | tail -n +672 | xargs rm -f

#!/bin/bash

watchdog() {
    PID=$1

    while(true); do
        FAIL=0

        find /output -type f -mmin -15 -name 'cam1-*.mp4' | grep -q . || FAIL=1

        if [[ $FAIL -eq 0 ]]; then
            /bin/systemd-notify WATCHDOG=1;
            sleep $(($WATCHDOG_USEC / 2000000))
        else
	    sleep $(($WATCHDOG_USEC / 4000000))
        fi
    done
}

watchdog $$ &

docker run  --name unifi-cam1 --rm -e TZ=Europe/Amsterdam -v /path:/output linuxserver/ffmpeg -rtsp_transport tcp -re -i rtsp://external_ip:7447/cam_token -vcodec copy -acodec copy -f mp4 -f segment -segment_time 900 -segment_atclocktime 1 -strftime 1 -reset_timestamps 1 output/cam1-%Y%m%d-%H%M%S.mp4