add information on load balancer lifecycle

[geoffcline]

Issue

Description

Customers may be confused or surprised when an annotation on a service is updated, and the configuration of the corresponding load balancer is not updated. Customers may also be surprised when the controller deletes and recreates a load balancer instead of attempting an in place update.

This new section on load balancer lifecycle raises awareness of this issue, and offers some best practice reccommendations.

Checklist

• [x] Added tests that cover your change (if possible)
• [x] Added/modified documentation as required (such as the README.md, or the docs directory)
• [x] Manually tested
• [x] Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! :exploding_head:

• [ ] Backfilled missing tests for code in same general area :tada:
• [ ] Refactored something and made the world a better place :star2:

[k8s-ci-robot]

Hi @geoffcline. 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.

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

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: geoffcline To complete the pull request process, please assign m00nf1sh after the PR has been reviewed. You can assign the PR to them by writing /assign @m00nf1sh in a comment when ready.

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[geoffcline]

/ok-to-test

I'm an org member now?