Fix hairpin mode

[NikolayMurha]

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[k8s-bot]

Can one of the admins verify that this patch is reasonable to test? (reply "ok to test", or if you trust the user, reply "add to whitelist")

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[k8s-bot]

Can one of the admins verify that this patch is reasonable to test? (reply "ok to test", or if you trust the user, reply "add to whitelist")

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[k8s-github-robot]

Labelling this PR as size/XS

[k8s-bot]

Can one of the admins verify that this patch is reasonable to test? (reply "ok to test", or if you trust the user, reply "add to whitelist")

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[thockin]

ok to test

[thockin]

@MurgaNikolay thanks! That's a pretty silly bug. Can you sort out the CLA - I'd like to get this in as a cherry pick for next patch release.

[NikolayMurha]

Can you sort out the CLA

I signed it

[googlebot]

CLAs look good, thanks!

[k8s-bot]

GCE e2e build/test passed for commit 70b918a.

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[k8s-github-robot]

The author of this PR is not in the whitelist for merge, can one of the admins add the 'ok-to-merge' label?

[k8s-github-robot]

@k8s-bot test this [submit-queue is verifying that this PR is safe to merge]

[k8s-bot]

GCE e2e build/test passed for commit 70b918a.

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[k8s-github-robot]

Automatic merge from submit-queue

[bprashanth]

Indeed.
Well, at least the logs called this out and --hairpin-mode=veth is still possible.
We should really get some unittests around this part of the kubelet (even though this flag hackery is short term).

[k8s-cherrypick-bot]

Commit b2c129d found in the "release-1.2" branch appears to be this PR. Removing the "cherrypick-candidate" label. If this s an error find help to get your PR picked.