feat(markers): auto-delete after 8 hours

nginx/default.conf.template

@@ -20,7 +20,7 @@ rtmp {
             hls_path /stream;
             hls_fragment_naming system;
             hls_fragment 3;
-            hls_playlist_length 28800;
+            hls_playlist_length ${STREAM_RING_LENGTH_SECOND};
 
             on_publish ${WEB_SERVER_URL}/api/v1/stream/start;
             on_publish_done ${WEB_SERVER_URL}/api/v1/stream/stop;

nginx/docker-entrypoint.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # must only run on certain env files, otherwise it replaces too much
-envsubst '${WEB_SERVER_URL}' \
+envsubst '${WEB_SERVER_URL} ${STREAM_RING_LENGTH_SECOND}' \
   < /etc/nginx/templates/default.conf.template \
   > /etc/nginx/nginx.conf