Documentation for updating seccomp policy to allow chroot

[mac-chaffee]

The chroot PR mentions that "If the admin adds / enables the seccomp feature with default profiles, ingress may stop working. This new approach NEEDS seccomp enabling "clone" syscalls": #8337

Since clusters should be using seccomp profiles for security, if we want to increase adoption of the chroot feature, I think we should not imply sacrificing seccomp is required.

As a result, I think ingress-nginx should have a section in the docs which describes how to setup a seccomp profile which allows "clone" and other things ingress-nginx needs, but nothing else.

Even the official k8s docs on the subject are quite lacking; they only show how to audit syscalls rather than block/allow syscalls: https://kubernetes.io/docs/tutorials/security/seccomp/

[k8s-ci-robot]

@mac-chaffee: This issue is currently awaiting triage.

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/lifecycle stale

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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.

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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

You can:

• Reopen this issue with /reopen
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/close not-planned

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