e2e: fix test case for ipv6 duplicate address detection

[zhangzujian]

Pull Request

• 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)

[gemini-code-assist]

Hello @zhangzujian, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request addresses an issue in the e2e tests related to IPv6 duplicate address detection. The primary change involves moving the container creation logic within the test to ensure it's executed after the IPv6 gateway is properly configured. This resolves a timing issue where the container might start before the gateway is ready, leading to test failures.

Highlights

• Test Fix: The PR fixes a test case related to IPv6 duplicate address detection in the e2e tests.
• Container Creation Logic: The container creation logic is moved to ensure it runs after the IPv6 gateway is configured.
• IPv6 Ping Command: Introduces a ping6 command to the container when IPv4 is disabled to ensure the IPv6 gateway is reachable.

Changelog

• test/e2e/kube-ovn/underlay/underlay.go
  • Moved container creation logic to after the IPv6 gateway configuration.
  • Added a ping6 command within the container when IPv4 is disabled to verify IPv6 gateway reachability.
  • Removed the initial container creation block.

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In the realm of code's vast domain,
A test case faltered, causing pain.
With IPv6's grace,
A fix took place,
Now addresses unique remain.

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[gemini-code-assist]

Code Review

The pull request aims to fix a test case related to IPv6 duplicate address detection in the Kube-OVN underlay network setup. The changes involve rearranging the order of operations within the test to ensure the container is created with the correct network configuration before VLAN and subnet resources are created. This seems like a reasonable approach to address the issue.

Summary of Findings

• Conditional Container Command: The container command is now conditionally set based on IPv4 availability. This is a good approach to ensure the test case is adapted to different IP family configurations. However, it's important to ensure that the ping6 command is robust and handles potential errors or timeouts gracefully.
• Code Rearrangement: The code related to container creation, VLAN creation, and subnet creation has been reordered. While this might fix the immediate issue, it's important to ensure that this reordering doesn't introduce any new dependencies or unexpected behavior in other test cases.

Merge Readiness

The pull request seems to address the reported issue by reordering the test steps and adapting the container command based on the IP family. However, it's crucial to ensure that the changes don't introduce any regressions or unexpected behavior in other test cases. I am unable to approve this pull request, and other reviewers should verify the changes and ensure that the test case is robust and reliable before merging.

[coveralls]

Pull Request Test Coverage Report for Build 15288212865

Details

• 0 of 95 (0.0%) changed or added relevant lines in 3 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.05%) to 21.777%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/daemon/config.go	0	3	0.0%
pkg/daemon/ovs_linux.go	0	22	0.0%
pkg/util/ndp.go	0	70	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/ovs/ovn-nb-bfd.go	2	61.61%
pkg/ovs/ovn-nb-logical_router_route.go	2	74.6%

Totals
Change from base Build 15277293151:	-0.05%
Covered Lines:	10363
Relevant Lines:	47586

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💛 - Coveralls