move proxy 9p mounting into its own init file

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

alpine/Dockerfile

@@ -25,6 +25,7 @@ COPY kernel/kernel-source-info /etc/
 ADD kernel/kernel-patches.tar /etc/kernel-patches
 
 COPY packages/proxy/proxy /sbin/
+COPY packages/proxy/etc /etc/
 COPY packages/transfused/transfused /sbin/
 COPY packages/transfused/etc /etc/
 COPY packages/mdnstool/mdnstool /sbin/
@@ -81,6 +82,7 @@ RUN \
   rc-update add localmount && \
   rc-update add klogd && \
   rc-update add docker default && \
+  rc-update add proxy default && \
   rc-update add 9pinit boot && \
   rc-update add transfused default && \
   rc-update add mdnstool default && \

alpine/packages/9pinit/etc/init.d/9pinit

@@ -17,9 +17,6 @@ start()
 			mkdir -p /Database
 			mount -t 9p -o trans=virtio,dfltuid=1001,dfltgid=50,version=9p2000 db /Database
 			;;
-		"port")
-			mkdir -p /port
-			mount -t 9p -o trans=virtio,dfltuid=1001,dfltgid=50,version=9p2000 port /port
 		esac
 
 	done

alpine/packages/proxy/etc/init.d/proxy

@@ -0,0 +1,16 @@
+#!/sbin/openrc-run
+
+depend()
+{
+        before docker
+}
+
+start()
+{
+	ebegin "Setting up proxy port mount"
+
+	mkdir -p /port
+	mount -t 9p -o trans=virtio,dfltuid=1001,dfltgid=50,version=9p2000 port /port
+
+	eend $? "Failed to mount proxy port filesystem"
+}