Automated cherry pick of #16737: fix bootstrap already exists handling

[jauru]

Cherry pick of #16737 on release-1.30.

#16737: fix bootstrap already exists handling

For details on the cherry pick process, see the cherry pick requests page.

[k8s-ci-robot]

Hi @jauru. Thanks for your PR.

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[zetaab]

/ok-to-test

[zetaab]

/approve
/lgtm

thanks for fixing

[k8s-ci-robot]

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