Tvheadend

Hi, I would like to add a stream stream to the TVHeadend server, but it changes every day. I try to make a link to the source of the next m3u8 file but it does not work for me. Is there any possibility of doing this?

If I put a link to a file on my server that contains the correct link to the stream, then after the restart of the tvheadend the stream to the channel is not added and I have to manually map etc ..

PS: Now it works only by manually adding a direct stream link to TVHeadend ... but I can not do it every day