CORD-2905 Containerize XOS API tests

Change-Id: Ie64a7593799b9aec11ae133937feb9e44e27d0e1
diff --git a/docker_images.yml b/docker_images.yml
index 43a7821..871e8c3 100644
--- a/docker_images.yml
+++ b/docker_images.yml
@@ -248,3 +248,8 @@
     repo: progran
     path: "xos/synchronizer"
     dockerfile: "Dockerfile.synchronizer"
+
+  - name: xosproject/xos-api-tester
+    repo: cord-tester
+    path: "src/test/cord-api"
+    dockerfile: "Dockerfile.k8s-api-tester"