Copy original ressources from VOLUMES

Fix #561

gns3server/modules/docker/docker_vm.py

@@ -202,7 +202,7 @@ class DockerVM(BaseVM):
 
         # We mount our own etc/network
         network_config = self._create_network_config()
-        binds.append("{}:/etc/network:rw".format(network_config))
+        binds.append("{}:/gns3volumes/etc/network:rw".format(network_config))
 
         self._volumes = ["/etc/network"]
 
@@ -212,7 +212,7 @@ class DockerVM(BaseVM):
         for volume in volumes.keys():
             source = os.path.join(self.working_dir, os.path.relpath(volume, "/"))
             os.makedirs(source, exist_ok=True)
-            binds.append("{}:{}".format(source, volume))
+            binds.append("{}:/gns3volumes{}".format(source, volume))
             self._volumes.append(volume)
 
         return binds

gns3server/modules/docker/resources/init.sh

@@ -28,9 +28,18 @@ if [ ! -d /tmp/gns3/bin ]; then
 	/gns3/bin/busybox --install -s /tmp/gns3/bin
 fi
 
-#  Restore file permission
+#  Restore file permission and mount volumes
 for i in $(echo "$GNS3_VOLUMES" | tr ":" "\n")
 do
+    # Copy original files if destination is empty (first start)
+    if ! [ "$(ls -A /gns3volumes$i)" ]; then
+        for file in $(ls -A "$i")
+        do
+            cp -a "$i/$file" "/gns3volumes$i/$file"
+        done
+    fi
+
+    mount --bind "/gns3volumes$i" "$i"
     if [ -f "$i/.gns3_perms" ]
     then
         while IFS=: read PERMS OWNER GROUP FILE