Create CONNECTION dict with environment variable

recircle/recircle/settings.py

@@ -157,3 +157,17 @@ LEASE_TYPES = [
 
 # CORS config for development version only
 CORS_ORIGIN_WHITELIST = ("http://localhost:3000",)
+
+CONNECTION = {
+    "auth_url":  os.getenv("OS_AUTH_URL"),
+    "project_id":  os.getenv("OS_PROJECT_ID"),
+    "project_name":  os.getenv("OS_PROJECT_NAME"),
+    "user_domain_name":  os.getenv("OS_USER_DOMAIN_NAME", "Default"),
+    "user_domain_id":  os.getenv("OS_USER_DOMAIN_ID", "default"),
+    "project_domain_id":  os.getenv("OS_PROJECT_DOMAIN_ID", "default"),
+    "username":  os.getenv("OS_USERNAME"),
+    "password":  os.getenv("OS_PASSWORD"),
+    "region_name":  os.getenv("OS_REGION_NAME"),
+    "interface":  os.getenv("OS_INTERFACE"),
+    "identity_api_version":  os.getenv("OS_IDENTITY_API_VERSION"),
+}