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We have a use-case where we need to scrape metrics from the following containers running in the controller deployment and node daemonset:

1. liveness-prove
2. csi-provisioner
3. csi-driver-registrar

Our requirement is to add / update the arguments passed to these containers.

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A simple helm templating block to be added in each of the containers and their values made available through the values.yaml file.

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The latest chart of aws-ebs-csi-driver has this implemented and can be used as a starting point. Eg https://github.com/kubernetes-sigs/aws-ebs-csi-driver/blob/master/charts/aws-ebs-csi-driver/templates/_node.tpl#L152