remove ability to set hostname as no longer needed. Hard code llmnrd name as 'docker'

Signed-off-by: Justin Cormack <justin.cormack@docker.com>

alpine/mkinitrd.sh

@@ -84,7 +84,7 @@ nameserver 2001:4860:4860::8888
 nameserver 2001:4860:4860::8844
 EOF
 
-printf 'docker' > /tmp/etc/hostname
+printf 'moby' > /tmp/etc/hostname
 
 rm /tmp/bin/mkinitrd.sh
 

alpine/packages/hostsettings/etc/init.d/hostsettings

@@ -3,13 +3,12 @@
 description="Configuring settings from database."
 
 depend() {
-	before hostname sysctl
+	before sysctl
 }
 
 start() {
 	ebegin "Configuring host settings from database"
 
-	mobyconfig exists etc/hostname && echo $(mobyconfig get etc/hostname) > /etc/hostname
 	mobyconfig exists etc/sysctl.conf && mobyconfig get etc/sysctl.conf > /etc/sysctl.conf
 
         eend 0

alpine/packages/llmnrd/etc/init.d/llmnrd

@@ -16,7 +16,8 @@ start()
 
 	[ -n "${PIDFILE}" ] || PIDFILE=/var/run/llmnrd.pid
 
-	export HOSTNAME=$(hostname -s)
+	# always serve as 'docker'
+	export HOSTNAME=docker
 
 	start-stop-daemon --start --quiet \
 		--background \