Ensure directory is created

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

Dockerfile

@@ -17,9 +17,13 @@ FROM jlesage/baseimage-gui:debian-10
 
   ADD ./src/startapp.sh /startapp.sh
 
-  RUN mkdir -p /app/cura && \
+  RUN mkdir -p /app/cura/config && \
     mkdir -p /config/xdg/config/cura && \
-    ln -sf /app/cura /config/xdg/config/cura/4.13
+    ln -sf /app/cura/config /config/xdg/config/cura/4.13
+
+  RUN mkdir -p /app/cura/data && \
+    mkdir -p /config/xdg/data/cura && \
+    ln -sf /app/cura/data /config/xdg/data/cura/4.13
 
   VOLUME [ "/app/cura" ]
   ENV APP_NAME="Cura"

README.md

@@ -6,6 +6,7 @@ Docker image containing Ultimaker Cura, accessible via web UI or VNC.
 
 * Web based GUI (Port 5800)
 * VNC based access (Port 5900)
+* All config symlinked to `/app/cura` so it can be stored with a persistent volume
 
 ## Building from source
 

src/startapp.sh

@@ -1,4 +1,7 @@
 #!/bin/sh
 
+mkdir -p /app/cura/config
+mkdir -p /app/cura/data
+
 export HOME=/home
 exec /opt/cura/usr/bin/cura.sh