add checks for pulseaudio - sometimes doesn't start, so retry

docker-entrypoint.sh

-#!/bin/sh
+#!/bin/bash
 
-pulseaudio --start -vvv --disallow-exit --log-target=syslog --high-priority --exit-idle-time=-1 --daemonize
+if pulseaudio --check ; then
+	echo "Pulseaudio already running - killing it..."
+	pulseaudio --kill
+fi
 
-exec "$@"
\ No newline at end of file
+# sometimes pulseaudio fails to start (for unknown reason - try starting it again)
+p=0
+
+while ! pulseaudio --check && [ $p -lt 2 ] ; do
+	echo "Starting pulseaudio..."
+	pulseaudio --start -vvv --disallow-exit --log-target=syslog --high-priority --exit-idle-time=-1 &
+
+	i=0
+
+	while ! pulseaudio --check && [ $i -lt 3 ] ; do
+		echo "Waiting for pulseaudio to start..."
+		sleep 1
+		i=$((i+1))
+	done
+
+	p=$((p+1))
+done
+
+if pulseaudio --check ; then
+	exec "$@"
+else
+	echo "Error starting pulseaudio"
+fi