modify crl storage config:

- make local container for libcloud storage if it does not exist
- separate config variables for CRL storage

atst/domain/csp/files.py

@@ -39,6 +39,8 @@ class FileProviderInterface:
 def get_rackspace_container(provider, container=None, **kwargs):
     if provider == "LOCAL":  # pragma: no branch
         kwargs["key"] = container
+        if not os.path.exists(container):
+            os.mkdir(container)
         container = ""
 
     driver = get_driver(getattr(Provider, provider))(**kwargs)
@@ -85,14 +87,17 @@ class CRLProviderInterface:
 
 class RackspaceCRLProvider(CRLProviderInterface):
     def __init__(self, app):
+        provider = app.config.get("CRL_STORAGE_PROVIDER") or app.config.get(
+            "STORAGE_PROVIDER"
+        )
         self.container = get_rackspace_container(
-            provider=app.config.get("STORAGE_PROVIDER"),
-            container=app.config.get("CRL_CONTAINER"),
+            provider=provider,
+            container=app.config.get("CRL_STORAGE_CONTAINER"),
             key=app.config.get("STORAGE_KEY"),
             secret=app.config.get("STORAGE_SECRET"),
-            region=app.config.get("CRL_REGION"),
+            region=app.config.get("CRL_STORAGE_REGION"),
         )
-        self._crl_dir = app.config.get("CRL_CONTAINER")
+        self._crl_dir = app.config.get("CRL_STORAGE_CONTAINER")
         self._object_name = app.config.get("STORAGE_CRL_ARCHIVE_NAME")
 
     def sync_crls(self):