Fix bug 1800: Add hostpath mount option in OSM charms

Change-Id: Ie5ef484759bd37d6cc8dcea0f32573e2a7dd3a11
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/installers/charm/nbi/config.yaml b/installers/charm/nbi/config.yaml
index a85aa70..f10304f 100644
--- a/installers/charm/nbi/config.yaml
+++ b/installers/charm/nbi/config.yaml
@@ -89,6 +89,20 @@
     description: |
       Public SSH key that will be injected to the application pod.
     type: string
+  debug_nbi_local_path:
+    description: |
+      Local full path to the NBI project.
+
+      The path will be mounted to the docker image,
+      which means changes during the debugging will be saved in your local path.
+    type: string
+  debug_common_local_path:
+    description: |
+      Local full path to the COMMON project.
+
+      The path will be mounted to the docker image,
+      which means changes during the debugging will be saved in your local path.
+    type: string
   security_context:
     description: Enables the security context of the pods
     type: boolean