allow kokoro CI to authenticate
diff --git a/tools/gce/kokoro_performance.pub b/tools/gce/kokoro_performance.pub
index 1154deb..4eca916 100644
--- a/tools/gce/kokoro_performance.pub
+++ b/tools/gce/kokoro_performance.pub
@@ -1 +1,4 @@
+# Enable Kokoro CI to SSH to the VM (Added by linux_kokoro_performance_worker_init.sh)
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDg7L/ZaEauETWrPklUTky3kvxqQfe2Ax/2CsSqhNIGNMnK/8d79CHlmY9+dE1FFQ/RzKNCaltgy7XcN/fCYiCZr5jm2ZtnLuGNOTzupMNhaYiPL419qmL+5rZXt4/dWTrsHbFRACxT8j51PcRMO5wgbL0Bg2XXimbx8kDFaurL2gqduQYqlu4lxWCaJqOL71WogcimeL63Nq/yeH5PJPWpqE4P9VUQSwAzBWFK/hLeds/AiP3MgVS65qHBnhq0JsHy8JQsqjZbG7Iidt/Ll0+gqzEbi62gDIcczG4KC0iOVzDDP/1BxDtt1lKeA23ll769Fcm3rJyoBMYxjvdw1TDx sabujp@trigger.mtv.corp.google.com
+# Enable kokoro multi-machine benchmark driver VM to SSH to the VM (Added by linux_kokoro_performance_worker_init.sh)
 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDKQ5UEX4AFefec9BKICupFS7x9Hoq4ZyLKy+QX0J31I49ew9mG2AJlr3sp8ql15eX+A2Ml9MKJkmgZGHpJtw+SfvmI94SmomSyiCLAK92sQ85NMzaRdo4b9e30E9nhXnAvAaemvIEQbgCMYFvzk0C8AtXj6+htCrN4jFaLqTCPISJhX3ETc4TgX1qaHQHyl31tdaXHYlITvBDsfokcGcZQnhmCUDtD8wyaSC8GFk9gZbXshkfaYCuuLPPA0vwWGBw+YPbonHsFCsOog1IYSzYPCkIjq8dt6evsusK6Kaoyw/Z+l2kYty2FKTj+wU3l06QMoxwcfNT4WxdhcnVbY71r kbuilder@kokoro-performance-driver