Adaptive Kube-ovn

[chenhuazhong]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

The network plug-in kube-ovn does not require a cluster to allocate podcidr

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[kube-ovn] The network plug-in kube-ovn does not require a cluster to allocate podcidr

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[k8s-ci-robot]

Hi @chenhuazhong. Thanks for your PR.

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[cristicalin]

Hi @chenhuazhong , would you mind providing some more explanation on this capability and/or link to the kube-ovn docs explaining why this works?

Also could you make sure to sign the CLA so we can accept this contribution?

[chenhuazhong]

Hi @chenhuazhong , would you mind providing some more explanation on this capability and/or link to the kube-ovn docs explaining why this works?

Also could you make sure to sign the CLA so we can accept this contribution?

This is the kube-ovn documentation ：https://github.com/kubeovn/kube-ovn ，kube-ovn is assigned ip by the controller, this ip can appear on any node of the cluster, rather than a cidr per node. kube-ovn can create a subnet with a 24-bit mask, but if kubeadm sets a 24-bit subnet, the node will not be able to allocate podcidr.

[chenhuazhong]

I signed it

[cristicalin]

@chenhuazhong please rebase your branch to the most recent master to avoid the CI issues

[chenhuazhong]

I signed it

[chenhuazhong]

I signed it

[chenhuazhong]

@chenhuazhong please rebase your branch to the most recent master to avoid the CI issues

@cristicalin The rebase of the latest master branch code has been completed and the cla has been signed. This is the first time I have raised PR for the CNCF project. Please point out what is not done well.

[cristicalin]

Looks good now, thanks @chenhuazhong !

/ok-to-test
/lgtm

[floryut]

@chenhuazhong Thanks 👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chenhuazhong, floryut

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