🐛 Changed DHA to require hostAffinity to be host to prevent instance drift

[vr4manta]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Currently if you use dynamic host allocation (DHA) to create an awsmachine and allocate a host, the instance can drift off that host if it is configured with anything but hostAffinity=host. This PR is intended to make sure we require hostAffinity=host when configuring DHA

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• includes emoji in title
• adds unit tests
• adds or updates e2e tests

Release note:

Changed DHA behavior to require awsmachine to be configured with `hostAffinity=host`

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

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

Details

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

[k8s-ci-robot]

Hi @vr4manta. 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.

Tip

We noticed you've done this a few times! Consider joining the org to skip this step and gain /lgtm and other bot rights. We recommend asking approvers on your previous PRs to sponsor you.

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

I understand the commands that are listed here.

Details

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-sigs/prow repository.

[vr4manta]

/assign @nrb @damdo

[nrb]

/ok-to-test
/lgtm

[k8s-ci-robot]

LGTM label has been added.

Details

Git tree hash: adfa3c26b2cf8239144ea8e2b5423f601ac45480