[release/1.5 backport] Allow expanded DNS configuration

[gjkim42]

Cherry pick of #5878 on release/1.5.

#5878: Allow expanded DNS configuration

[k8s-ci-robot]

Hi @gjkim42. Thanks for your PR.

I'm waiting for a containerd 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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[gjkim42]

@mikebrow

Can we cherry-pick this to release/1.5?
I am not sure about containerd's version control.

[estesp]

LGTM

I think this is reasonable to backport to release/1.5

[theopenlab-ci]

Build succeeded.

• containerd-build-arm64 : SUCCESS in 3m 56s (non-voting)
• containerd-test-arm64 : SUCCESS in 5m 18s (non-voting)
• containerd-integration-test-arm64 : SUCCESS in 16m 00s (non-voting)

[Zyqsempai]

LGTM

[estesp]

Will have to merge #5894 to get CI working in release/1.5 again; the available image references used in Linux integration tests changed on the GCR mirror and we haven't had a PR in release/1.5 since then.

[kzys]

@gjkim42 Could you rebase this branch against release/1.5? #5894 has been merged there and it should make the tests all green.

[theopenlab-ci]

Build succeeded.

• containerd-build-arm64 : SUCCESS in 3m 48s (non-voting)
• containerd-test-arm64 : SUCCESS in 5m 18s (non-voting)
• containerd-integration-test-arm64 : FAILURE in 24m 21s (non-voting)

[theopenlab-ci]

Build succeeded.

• containerd-build-arm64 : SUCCESS in 4m 27s (non-voting)
• containerd-test-arm64 : SUCCESS in 5m 26s (non-voting)
• containerd-integration-test-arm64 : SUCCESS in 24m 15s (non-voting)

[gjkim42]

rebased. thanks :)