support ovn ic ecmp

[changluyi]

• Make sure you have followed Kube-OVN Code Style.

What type of this PR

Examples of user facing changes:

• Features
• Bug fixes
• Docs
• Tests

Which issue(s) this PR fixes:

Fixes #(issue-number)

WHAT

🤖 Generated by Copilot at 0efe216

This pull request implements and tests the new design of the interconnection feature for kind clusters, which uses multiple logical switches and ports instead of one shared switch and port. It also fixes a dependency issue with the k8s.io/endpointslice module and adds some comments and external IDs to improve the code readability and reliability. The changes affect the Makefile, mocks/pkg/ovs/interface.go, pkg/controller/ovn-ic.go, test/e2e/ovn-ic/e2e_test.go, go.mod, pkg/ovs/interface.go, pkg/ovs/ovn-nb-logical_router_policy.go, and yamls/kind.yaml.j2 files.

🤖 Generated by Copilot at 0efe216

We're the crew of the ovn-ic, we sail the k8s sea
We interconnect the clusters with switches and policies
We heave and haul the LogicalRouterPolicy on the count of three
We fix the go.mod and the kind.yaml with glee

HOW

🤖 Generated by Copilot at 0efe216

• Add a replace directive to fix a dependency issue with k8s.io/endpointslice (link)
• Modify the Makefile to create two worker nodes and a control plane node for each kind cluster, and to remove the taint from the control plane node (link, link, link, link)

• Modify the establishInterConnection function to create one logical switch and one logical patch port for each gateway node, and to simplify the logic (link, link)
• Remove the waitTsReady function, which is no longer needed (link)
• Replace the waitTsReady function with the createTS function, which creates a logical switch with the external ID of the subnet (link)
• Modify the syncOneRouteToPolicy function to use the GetLogicalRouterPoliciesByExtID method, which gets the logical router policies by the external ID of the cluster, and to improve the performance and readability of the code (link, link)
• Modify the test cases to check for the existence of the logical switch ts0 and the logical switch ports ts0-az in each cluster (link, link, link)

• Add the GetLogicalRouterPoliciesByExtID method to the LogicalRouterPolicy and NbClient interfaces, and implement the method in the ovn-nb-logical_router_policy.go file (link, link, link, link)
• Modify the removeInterConnection function to comment out some lines that delete the logical router ports and the logical switches, and to add a TODO comment to use external ID to delete ports (link)
• Rename the startOvnIC and stopOvnIC functions to startOVNIC and stopOVNIC, and remove some redundant error logs (link, link, link)
• Modify the acquireLrpAddress function to fix some typos in the error messages, and to remove the line that checks the protocol of the logical switch port address (link)
• Add an import statement for the github.com/kubeovn/kube-ovn/pkg/ovs package to the pkg/controller/ovn-ic.go file (link)
• Add some lines to the yamls/kind.yaml.j2 file to specify that the node is a worker node, and to set the image to the kindest/node with the k8s version variable (link)

[zhangzujian]

E2E test should be added.

[changluyi]

E2E test should be added.

1

[oilbeater]

Need update the docs to describe new usage

[zhangzujian]

  STEP: Waiting for ecmp gateway to be applied @ 11/08/23 11:08:02.839
  [FAILED] in [It] - /home/runner/work/kube-ovn/kube-ovn/test/e2e/ovn-ic/e2e_test.go:260 @ 11/08/23 11:08:18.27
  STEP: Destroying namespace "ovn-ic-6110" for this suite. @ 11/08/23 11:08:18.271
  STEP: Destroying namespace "ovn-ic-1050" for this suite. @ 11/08/23 11:08:18.274
  << Timeline

  [FAILED] Expected
      <int>: 6
  to equal
      <int>: 3
  In [It] at: /home/runner/work/kube-ovn/kube-ovn/test/e2e/ovn-ic/e2e_test.go:260 @ 11/08/23 11:08:18.27

[oilbeater]

need rebase

[changluyi]

need rebase

1