Custom add-on configuration is currently not supported in GKE. Any changes to Heapster's configuration will be canceled by default using addon-manager .
If the default Heapster configuration does not work for you, try disabling it. To do this, you need to disable Cloud Monitoring and Horizontal Pod Autoscaler. Please keep in mind that without Heapster, by default, you will not receive metrics in Stackdriver or you will not be able to use HPA.
Having two copies of the Heapster is also wonderful. You can create your own instance of Heapster with the necessary configuration. Here is an example deployment .
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