Add missing configuration options to Operations API for TryMCP

Change-Id: Ie4b96797848507b709a9a81a128a42bc395ae7ae
diff --git a/defaults/docker_images.yml b/defaults/docker_images.yml
index 05a0b98..10fd4d9 100644
--- a/defaults/docker_images.yml
+++ b/defaults/docker_images.yml
@@ -18,3 +18,6 @@
     # mysql:5.6
     docker_image_mysql: "${_param:mcp_docker_registry}/mirantis/cicd/mysql:${_param:mcp_version}"
     docker_image_jenkins_slave: ${_param:mcp_docker_registry}/mirantis/cicd/jnlp-slave:${_param:mcp_version}
+    # model-generator
+    docker_image_operations_api: "${_param:mcp_docker_registry}/mirantis/model-generator/operations-api:${_param:mcp_version}"
+    docker_image_operations_ui: "${_param:mcp_docker_registry}/mirantis/model-generator/operations-ui:${_param:mcp_version}"