migrate metadata definition; modify migration script (#1184)

* migrate metadata definition; modify migration script

* local migrate changes (#1186)

---------

Co-authored-by: Todd Nicholson <[email protected]>

Author: longshuicy

.gitignore

@@ -62,13 +62,17 @@ deployments/kubernetes/charts/clowder2/*clowder2-software-dev.yaml
 *secret*.yaml
 
 # Environments
+**/*.env
 .env
 .venv
 env/
 venv/
 ENV/
 env.bak/
 venv.bak/
+*/.env
+scripts/migration/.env
+
 
 # Test folder contect except for test source code and metadata document.
 backend/app/tests/*