fix: adjust to follow nqptp

docker/README.md

@@ -46,16 +46,6 @@ The image is built with PulseAudio backend support. To use it, refer to [`docker
 
 To get access to the full range of configuration options, pass the configuration file to `/etc/shairport-sync.conf` in the container using the `-v` option or docker compose.
 
-## Environment variables
-
-Set `IPV4ONLY` to any value to force NQPTP to use IPv4 (might be useful on hosts not running IPv6):
-
-```
-$ docker run --env IPV4ONLY=yes -d --restart unless-stopped --net host --device /dev/snd \
-    mikebrady/shairport-sync:latest \
-    -v --statistics -a DenSystem -d hw:0 -c PCM
-```
-
 ## Building
 ### Build Example (for arm7 devices)
 

docker/docker-compose.yaml

@@ -8,7 +8,6 @@ services:
     # environment:
     #  PULSE_SERVER: unix:/tmp/pulseaudio.socket # Path for PulseAudio socket
     #  PULSE_COOKIE: /tmp/pulseaudio.cookie # Path for PulseAudio cookie
-    #  IPV4ONLY: "yes" # Force IPv4 in nqptp
     devices:
       - "/dev/snd" # ALSA device
     # volumes:

docker/etc/s6-overlay/s6-rc.d/04-nqptp/run

@@ -1,7 +1,3 @@
 #!/command/with-contenv sh
 echo "Starting nqptp"
-if [ -z ${IPV4ONLY+x} ]; then
-    exec /usr/local/bin/nqptp
-else
-    exec /usr/local/bin/nqptp -ipv4-only
-fi
+exec /usr/local/bin/nqptp