Exit on CSI gRPC conn loss

[ggriffiths]

Signed-off-by: Grant Griffiths grant@portworx.com

What type of PR is this?

/kind cleanup

What this PR does / why we need it:
This will exit the sidecar container when its gRPC connection to the CSI driver is lost. When a CSI driver goes down, we do not want the sidecar container on that node to still be leader.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

We will now exit the external-snapshotter when the connection to a CSI driver is lost, allowing for another leader to takeover.

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[ggriffiths]

/assign gnufied

[msau42]

/ok-to-test

[gnufied]

/lgtm

[gnufied]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ggriffiths, gnufied

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