I've not looked at this thread for a while and now realised I've missed
the party! I'm really pleased to see this has been taken forward to an
official presence on Docker Hub, but I have a couple of questions:
- Several common use cases require mDNS advertising (phillipe's
plugins, including the recently discussed ShairTunes2W, Spotify
Connect, etc.). We discussed this earlier on in this thread, but I
don't think it was resolved. Is there intended to be a way of enabling
mDNS advertising from within the container? I note that bridge
networking is being used. This is obviously preferable, but I've only
ever got mDNS advertising to work with host networking or if mDNS is
disabled on the host, giving exclusive use of udp/5353 to just the LMS
container. I realise this is intended to be a basic image to just get
things operating, but are we likely to have to change the networking
model to get, for example, Spotify to work correctly?
- There is no supervisor. There can be a problem with Docker ('zombie
processes aren't terminated'
(https://github.com/krallin/tini/issues/8)) that manifests itself when
the PID 1 process doesn't expect to need to look after other processes
that are created. Could that be the case here (with plugins, etc.)? I
have to confess I haven't tried to use -this- image, but my homespun
Dockerfile, with a container that has been running for two weeks and
started without an init process has over 50 instances each of 'faad',
'flac' and 'spotty-hf' showing up in the host's 'ps -e' output as
"defunct" processes. There is a tool ('now built into Docker'
(https://github.com/krallin/tini#using-tini) - it just requires
'--init' to be added to the 'docker run' command) designed to overcome
this problem if it occurs.
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