flashpaz wrote:
> Thanks, it is starting to make sense. By further investigating, I also
> realize that by default a host doesn't receive the mDNS multicast
> traffic (IP 224.0.0.251). Typically, a Linux host first have to start
> the avahi-daemon and this triggers a "registration" to tell the whole
> networks "hey, please also send me mDNS queries". I therefore see two
> options:
> 1) Have avahi running on the docker host and have the container use
> "host" networking
> 2) Have the container use a dedicated LAN IP (using macvlan or ipvlan
> docker networks) and have avahi running *inside* the container.
>
> I'll make some further tests and report here.
>
> Cheers!
OK, so this took some time.
I haven't been able to get a working docker/mDNS setup with a "sidecar"
avahi container (reflector).
As mentioned, the easiest option is to have the container running with a
dedicated IP on the network. MACVLAN is the de facto option but as it
creates a dedicated MAC address, it doesn't work if the docker host is a
VMware guest with the default security settings, because they forbid MAC
address forgery.
Instead, I went down the IPVLAN route and this works fine.
Also, I have a common backend network between this container and an
haproxy container, because I also want to have the UI on TLS (the
players are still doing plaintext http on port 9000, though).
I created the IPVLAN network with this command:
Code:
--------------------
docker network create -d ipvlan --subnet a.b.c.0/24 --ip-range a.b.c.64/28
--gateway a.b.c.1 -o parent=eth0 myipvlan
--------------------
And this is my docker-compose file
Code:
--------------------
version: '3.8'
services:
lms:
image: lmscommunity/logitechmediaserver:stable
container_name: lms
restart: unless-stopped
logging:
driver: journald
options:
tag: lms
volumes:
- ./config:/config
- /mnt/music:/music
- ./playlist:/playlist
- /usr/share/zoneinfo/Europe/Zurich:/etc/localtime:ro
environment:
- PUID=1000
- PGID=1000
networks:
myipvlan:
ipv4_address: a.b.c.64
haproxy_back:
ports:
- 9000:9000/tcp
- 9090:9090/tcp
- 3483:3483/tcp
- 3483:3483/udp
networks:
myipvlan:
external:
name: myipvlan
haproxy_back:
external: true
--------------------
Cheers and thanks for the hints!
------------------------------------------------------------------------
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