feat(chart): allow gmsa to be made more HA

[acobaugh]

This PR allows gmsa to be made more HA when installed via the chart. Since the webhook prevents pod creation at the k8s API level, it's critical that gmsa is able to be made more HA.

• Use nodeSelector instead of podAffinity to place pods on linux nodes, to allow consumers of the chart greater freedom when setting affinity
• Expose replicas via replicaCount
• Optionally create a PodDisruptionBudget
• Expose affinity to allow further pod placement customization

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[jsturtevant]

/lgtm

These looks like great improvements to me! Thanks @acobaugh!

@marosset will we be able to generate the chart and update the index in a seperate PR or should we do it here?

[marosset]

/lgtm

These looks like great improvements to me! Thanks @acobaugh!

@marosset will we be able to generate the chart and update the index in a seperate PR or should we do it here?

Let's do it here.

[acobaugh]

/lgtm
These looks like great improvements to me! Thanks @acobaugh!
@marosset will we be able to generate the chart and update the index in a seperate PR or should we do it here?

Let's do it here.

Done, I think!

[marosset]

/lgtm
Will approve after tests run.

Thanks!

[marosset]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: acobaugh, marosset

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