diff --git a/commands/db-change-root-password.sh b/commands/db/db-change-root-password.sh
similarity index 100%
rename from commands/db-change-root-password.sh
rename to commands/db/db-change-root-password.sh
diff --git a/commands/db-init.sh b/commands/db/db-init.sh
similarity index 100%
rename from commands/db-init.sh
rename to commands/db/db-init.sh
diff --git a/commands/db-setup.sh b/commands/db/db-setup.sh
similarity index 100%
rename from commands/db-setup.sh
rename to commands/db/db-setup.sh
diff --git a/commands/scale/scale-disks.sh b/commands/scale/scale-disks.sh
new file mode 100644
index 0000000..723972e
--- /dev/null
+++ b/commands/scale/scale-disks.sh
@@ -0,0 +1,2 @@
+
+# Instructions here for google cloud https://cloud.google.com/compute/docs/disks/add-persistent-disk
diff --git a/readme.md b/readme.md
index db66109..e8ff105 100644
--- a/readme.md
+++ b/readme.md
@@ -12,3 +12,9 @@ It will monitor the resource usage and response times and react when predetermin
 * Scale down when resources are under utilized
 * Allow manual scaling
 * In public cloud environments manage VM sizes and usage
+
+## Design Principles
+
+* All features should work on local systems and in public clouds
+* If there are specific cloud behaviors then there should be a way to specify which cloud the target is running on.
+* Define a generic interface and implement it for each cloud.