1 files changed, 41 insertions, 0 deletions
diff --git a/db/post_migrate/20230106124332_change_keys_relation_to_ssh_signatures.rb b/db/post_migrate/20230106124332_change_keys_relation_to_ssh_signatures.rb
new file mode 100644
index 00000000000..e76a3617ba3
--- /dev/null
+++ b/db/post_migrate/20230106124332_change_keys_relation_to_ssh_signatures.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+class ChangeKeysRelationToSshSignatures < Gitlab::Database::Migration[2.1]
+  disable_ddl_transaction!
+
+  TARGET_COLUMN = :key_id
+
+  def up
+    add_concurrent_foreign_key(
+      :ssh_signatures,
+      :keys,
+      column: :key_id,
+      name: fk_name("#{TARGET_COLUMN}_nullify"),
+      on_delete: :nullify
+    )
+
+    with_lock_retries do
+      remove_foreign_key_if_exists(:ssh_signatures, column: TARGET_COLUMN, name: fk_name(TARGET_COLUMN))
+    end
+  end
+
+  def down
+    add_concurrent_foreign_key(
+      :ssh_signatures,
+      :keys,
+      column: :key_id,
+      name: fk_name(TARGET_COLUMN),
+      on_delete: :cascade
+    )
+
+    with_lock_retries do
+      remove_foreign_key_if_exists(:ssh_signatures, column: TARGET_COLUMN, name: fk_name("#{TARGET_COLUMN}_nullify"))
+    end
+  end
+
+  private
+
+  def fk_name(column_name)
+    concurrent_foreign_key_name(:ssh_signatures, column_name)
+  end
+end