diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..bdbec858f0c221cfb9a8a778e3be43395abd7199
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,10 @@
+generate-reference-api:
+   tags:
+    - docker
+   image: debian:stretch
+   script:
+    - apt-get update && apt-get -y install ruby rake ruby-hashdiff git
+    - gem install hash_validator
+    - rake reference-api
+    - git status # TODO complain if we have uncommitted changes?
+    - git diff