values for securityContext and webhook job containers create and patch

[ybelMekk]

helm version: 3.9.2
ingress-nginx version: ingress-nginx-4.2.3.tgz

What this PR does / why we need it:

Stumbled in to this when working with kyverno and enforced strict policies.

Kyverno and using strict policy configuration, job create for ingress-nginx-admission-create fails with policies require-drop-all. Adding the ability to configure containers in webhooks create and patch from helm values.

k describe job loadbalancer-ingress-nginx-admission-create

resource Pod/my-namespace/loadbalancer-ingress-nginx-admission-create-kvpl5 was blocked due to the following policies

disallow-capabilities-strict:
  require-drop-all: 'validation failure: Containers must drop `ALL` capabilities.'
  Warning  FailedCreate  14s  job-controller  Error creating: admission webhook "validate.kyverno.svc-fail" denied the request:

NONE

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• CVE Report (Scanner found CVE and adding report)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation only

Which issue/s this PR fixes

How Has This Been Tested?

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have added unit and/or e2e tests to cover my changes.
• All new and existing tests passed.
• Added Release Notes.

Does my pull request need a release note?

Any user-visible or operator-visible change qualifies for a release note. This could be a:

• CLI change
• API change
• UI change
• configuration schema change
• behavioral change
• change in non-functional attributes such as efficiency or availability, availability of a new platform
• a warning about a deprecation
• fix of a previous Known Issue
• fix of a vulnerability (CVE)

No release notes are required for changes to the following:

• Tests
• Build infrastructure
• Fixes for unreleased bugs

For more tips on writing good release notes, check out the Release Notes Handbook

NONE

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: ybelMekk
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[k8s-ci-robot]

@ybelMekk: This issue is currently awaiting triage.

If Ingress contributors determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

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[k8s-ci-robot]

Hi @ybelMekk. Thanks for your PR.

I'm waiting for a kubernetes 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[ybelMekk]

@longwuyuan fresh PR.

[ybelMekk]

whats wrong with the documentation? 😕

[longwuyuan]

I think you need to make double sure of the following ;

• Rebase
• helm-docs https://github.com/kubernetes/ingress-nginx/blob/main/RELEASE.md#d-edit-the-valuesyaml-and-run-helm-docs
• Squash commits

[ybelMekk]

@longwuyuan can you 👀 ?

[ybelMekk]

close this: see #9186