Allow filtering hosted zones by name in AWS

[offzale]

There are some use cases where you might need to use different filters for zone names and for domains. e.g. if you want external-dns to manage example.org zone, but you only want external-dns to take care of certain subdomains, not even the main domain example.org. There is no way to do so with the current domain filters since they apply the same logic to both zones and domains.

In this PR I add a new filter, ZoneNameFilter, which is meant to filter zones by name. When this new filter is set, it will be used to filter the zones by name, and DomainFilter will still be used to filter domains. Otherwise, if ZoneNameFilter is not set, DomainFilter will filter both zones and domains. Therefore, this does not add any breaking change.

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[offzale]

/assign @njuettner

[offzale]

@njuettner Any thoughts?

[offzale]

@njuettner @hjacobs let me know if you are missing anything here that I should add

[seanmalloy]

/kind feature

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[seanmalloy]

/remove-lifecycle stale

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/lifecycle stale

[offzale]

Azure's zone filtering has been updated to use this new filter as well. So, when set it filters by matching the whole zone name instead of matching by suffix (which domainFilter already does if the name filter is not set)

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[APPROVALNOTIFIER] This PR is NOT APPROVED

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[k8s-triage-robot]

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/lifecycle stale

[froblesmartin]

Hi @offzale! Are you planning to rebase this and push forward to get this PR merged?

If not, we can open a rebased version of this PR and take care of it. Please let me know ;)

[offzale]

Thanks for the shout @froblesmartin, I have just updated the code. It is back ready for review if either of you guys could maybe have a look @njuettner @Raffo. Thanks in advance!

/remove-lifecycle stale

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/lifecycle stale

[offzale]

/remove-lifecycle stale

[k8s-ci-robot]

@offzale: PR needs rebase.

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[froblesmartin]

Hi @offzale! are you planning to rebase again? 😅 it has conflicts again 😢

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/lifecycle stale

[asfaltboy]

I think our best bet is to ping one of the reviewers on slack (following this guide)

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/lifecycle rotten

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/close

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@k8s-triage-robot: Closed this PR.

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/close

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