Enable portmap CNI plugin with kube-router

[EBCEEB]

... to have working hostPort for containers.

See: https://www.kube-router.io/docs/user-guide/#hostport-support

What type of PR is this?
/kind feature

What this PR does / why we need it:
In case of using CNI, docker can't configure port mapping.
See: kubernetes/kubernetes#23920 (comment)

Which issue(s) this PR fixes:
none

Special notes for your reviewer:

Does this PR introduce a user-facing change?:
no

Enable portmap CNI plugin with kube-router to allow use of `hostPort` in container specs.

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Hi @EBCEEB. 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. Regular contributors should join the org to skip this step.

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[EBCEEB]

/assign @bozzo

[floryut]

/ok-to-test

[bozzo]

/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bozzo, EBCEEB

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• roles/network_plugin/kube-router/OWNERS [bozzo]

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[bozzo]

/retest

[EppO]

please rebase your branch on master, CI jobs should be now fixed

[bozzo]

/lgtm