Delete access point root dir via pod in user cluster

[chrishenzie]

Is your feature request related to a problem? Please describe. When using --deleteAccessPointRootDir=true, the EFS CSI driver controller mounts the file system locally, removes the root directory, and unmounts it.

In order for this feature to work, the nodes running the EFS CSI driver controller must have network access (security groups) configured to access the elastic file system.

However, if users run the EFS CSI driver controller on a separate set of control plane nodes running only control plane components, they may not want to allow network access from these nodes for user data privacy reasons, which means this feature will not work with this architecture.

Describe the solution you'd like in detail During volume deletion, the EFS CSI driver controller creates a pod in the user cluster that performs the cleanup and stops. This allows the EFS CSI driver controller to be deployed alongside other control plane components on dedicated nodes.

Describe alternatives you've considered Users can run the EFS CSI driver controller in the user cluster (which presumably already has network access). For some managed Kubernetes distros, this will require manual work by the user to set up.

Another alternative is to support root directory cleanup on deletion as part of the EFS API, which would remove the need to do any manual cleanup, but would likely take longer to implement and roll out.

[chrishenzie]

@kbasv @wongma7 @msau42

[msau42]

I guess one challenge would be how this Pod would be implemented. It wouldn't be able to mount the PVC because the PVC is in terminating state.

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

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/close

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[mauriciopoppe]

/reopen /remove-lifecycle rotten

[k8s-ci-robot]

@mauriciopoppe: Reopened this issue.

In response to this:

/reopen /remove-lifecycle rotten

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[RyanStan]

/kind feature

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/lifecycle stale

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues.

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/lifecycle rotten

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

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/close not-planned

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