1 files changed, 17 insertions, 0 deletions
diff --git a/app/models/ci/base_model.rb b/app/models/ci/base_model.rb
new file mode 100644
index 00000000000..8fb752ead1d
--- /dev/null
+++ b/app/models/ci/base_model.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module Ci
+  # TODO: https://gitlab.com/groups/gitlab-org/-/epics/6168
+  #
+  # Do not use this yet outside of `ci_instance_variables`.
+  # This class is part of a migration to move all CI classes to a new separate database.
+  # Initially we are only going to be moving the `Ci::InstanceVariable` model and it will be duplicated in the main and CI tables
+  # Do not extend this class in any other models.
+  class BaseModel < ::ApplicationRecord
+    self.abstract_class = true
+
+    if Gitlab::Database.has_config?(:ci)
+      connects_to database: { writing: :ci, reading: :ci }
+    end
+  end
+end