Allow setting extra, non-selector labels on pods

[den-is]

Is this a bug fix or adding new feature?
New minor feature.

What is this PR about? / Why do we need it?
My recent deployment of efs-csi-driver in k8s cluster required me to set special labels on pods.
I was not able to do that using official chart.
So here is my PR.
Proposed changes do not interfere with or alter existing deployments.

What testing is done?
test values.yaml

controller:
  podLabels:
    controllerlabel: "true"
node:
  podLabels:
    nodelabel: "true"

Render chart:

helm template efs-csi-driver ./src/charts/aws-efs-csi-driver -f ./test-values.yaml --dry-run --debug

Output:

# omitted
---
kind: DaemonSet
apiVersion: apps/v1
metadata:
  name: efs-csi-node
  labels:
    app.kubernetes.io/name: aws-efs-csi-driver
spec:
  selector:
    matchLabels:
      app: efs-csi-node
      app.kubernetes.io/name: aws-efs-csi-driver
      app.kubernetes.io/instance: efs-csi-driver
  template:
    metadata:
      labels:
        app: efs-csi-node
        app.kubernetes.io/name: aws-efs-csi-driver
        app.kubernetes.io/instance: efs-csi-driver
        nodelabel: "true"
# omitted
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: efs-csi-controller
  labels:
    app.kubernetes.io/name: aws-efs-csi-driver
spec:
  replicas: 2
  selector:
    matchLabels:
      app: efs-csi-controller
      app.kubernetes.io/name: aws-efs-csi-driver
      app.kubernetes.io/instance: efs-csi-driver
  template:
    metadata:
      labels:
        app: efs-csi-controller
        app.kubernetes.io/name: aws-efs-csi-driver
        app.kubernetes.io/instance: efs-csi-driver
        controllerlabel: "true"
# omitted

Skipping setting additional pod labels, renders templates just fine.

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @den-is. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[den-is]

This PR is also a duplicate of #926
But IMHO mine is a little bit smarter, with a better description.

[mskanth972]

/ok-to-test

[mskanth972]

Hi @den-is thanks for the PR. Could you please exclude the Helm version update from chart.yaml? We prefer to handle version changes in the release PRs.

[den-is]

Hi @den-is thanks for the PR. Could you please exclude the Helm version update from chart.yaml? We prefer to handle version changes in the release PRs.

@mskanth972 Sure! Done.

[mskanth972]

can you please squash the commits to one

[den-is]

@mskanth972 but GitHub merge PR has the option to merge commits on merge, is not it?
np. will do.

[den-is]

@mskanth972 Done.

[csapinoso]

can we get this reviewed and merged please? we really need the ability to add pod labels. This is seems pretty straightforward

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: den-is, RyanStan
Once this PR has been reviewed and has the lgtm label, please assign justinsb for approval. For more information see the Kubernetes Code Review Process.

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[den-is]

I hope someone finally approves this PR.

After update/rebase

• PR remains concise
• adds clear default configuration to values.yaml - podLabels for the controller which were missed by the previous author.
• adds missing podLabels to node-daemonset

[k8s-ci-robot]

PR needs rebase.

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