Is it possible to use runOnDemand and ffmpeg in docker?

[alealex]

Hello,
I am using rtsp-simple-server v0.16.4 as a docker container aler9/rtsp-simple-server
and my config has

paths:
  all: 
  stream_file1:
    runOnDemand: ffmpeg -i filename -c copy -f rtsp -rtsp_transport tcp rtsp://rtsp-server:8554/stream_file1

it works with such config on Windows host (not in docker) but doesn't work in docker container on linux.
Is it possible to run ffmpeg in docker?

moreover when I try to run any command like
docker exec -it <docker_container_id> sh
result is
OCI runtime exec failed: exec failed: container_linux.go:367: starting container process caused: exec: "sh": executable file not found in $PATH: unknown

Thanks in advance for any ideas!

[mattheys]

Are you mapping a volume in to the docker container so it's accessible inside?

Also I think this docker container isn't built on a linux os so there is no shell you can execute inside it, pretty sure it just contains the compiled go application as that's all it needs.

[aler9]

ffmpeg is not included in the Docker image, but you can build a custom Docker image that contains both the server and ffmpeg, by following instructions here https://github.com/aler9/rtsp-simple-server/issues/183#issuecomment-760856015