Update High Availability Conventions

[ravisantoshgudimetla]

Clarify when to set hard affinity in case customers can override afiinity and replica configuration.

cc @smarterclayton @dmage @ricardomaraschini

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.
Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[openshift-bot]

Stale issues rot after 30d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.
Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle rotten
/remove-lifecycle stale

[openshift-bot]

Rotten enhancement proposals close after 7d of inactivity.

See https://github.com/openshift/enhancements#life-cycle for details.

Reopen the proposal by commenting /reopen.
Mark the proposal as fresh by commenting /remove-lifecycle rotten.
Exclude this proposal from closing again by commenting /lifecycle frozen.

/close

[openshift-ci]

@openshift-bot: Closed this PR.

In response to this:

Rotten enhancement proposals close after 7d of inactivity.

See https://github.com/openshift/enhancements#life-cycle for details.

Reopen the proposal by commenting /reopen.
Mark the proposal as fresh by commenting /remove-lifecycle rotten.
Exclude this proposal from closing again by commenting /lifecycle frozen.

/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.