diff --git a/deploy/dev/grafana-datasources.yaml b/deploy/dev/grafana-datasources.yaml
index b5e7218..39ede0e 100644
--- a/deploy/dev/grafana-datasources.yaml
+++ b/deploy/dev/grafana-datasources.yaml
@@ -13,3 +13,6 @@ datasources:
     sslmode: disable
   secureJsonData:
     password: postgres
+# To delete a datasource, deploy this snippet:
+# deleteDatasources:
+# - name: foo