IPPool sync to address set

[zbb88888]

Pull Request

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

What type of this PR

Examples of user facing changes:

• Features

• IPPool support to sync its ips into address set.

• Enable IPPool to work with vpc policy route or ACL

Which issue(s) this PR fixes

Fixes #(issue-number)

[gemini-code-assist]

Summary of Changes

Hello @zbb88888, 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!

This pull request enhances the IPPool functionality by enabling direct synchronization with OVN address sets. This integration allows IPPools to be seamlessly utilized for advanced networking features such as VPC policy-based routing and Access Control Lists (ACLs), providing a more dynamic and automated way to manage network policies based on defined IP ranges. The changes involve extending the IPPool API, implementing the necessary controller logic for OVN interaction, and ensuring proper resource lifecycle management through finalizers and comprehensive testing.

Highlights

• IPPool API Extension: Introduced a new EnableAddressSet boolean field in the IPPoolSpec to explicitly control whether an IPPool should be synchronized with an OVN address set.
• OVN Address Set Synchronization: Implemented controller logic to automatically create, update, and delete OVN address sets based on the EnableAddressSet field and the IPs defined in an IPPool.
• IP Range Expansion and Normalization: Added robust utility functions to parse and expand various IP formats (single IPs, CIDRs, and IP ranges like "10.0.0.1..10.0.0.5") into canonical CIDR representations for OVN address sets.
• Finalizer Management: Integrated finalizers for IPPools to ensure that associated OVN address sets are properly cleaned up upon IPPool deletion, preventing resource leaks.
• Comprehensive Testing: Included new unit tests for the IP parsing and address set naming logic, and added an end-to-end conformance test to validate the full lifecycle of IPPool-backed OVN address sets.

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[gemini-code-assist]

Code Review

This pull request introduces a new feature to synchronize IPPools with OVN address sets, which is crucial for enabling policy-based routing and ACLs. The changes include adding an EnableAddressSet field to the IPPool CRD, implementing controller logic to manage OVN address sets, and providing comprehensive unit and E2E tests. The IP parsing and range expansion logic appears robust and well-tested. However, there are a couple of areas that could be improved for maintainability and robustness.

[coveralls]

Pull Request Test Coverage Report for Build 19498592422

Details

• 274 of 415 (66.02%) changed or added relevant lines in 4 files are covered.
• 3 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.4%) to 22.278%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controller/init.go	0	4	0.0%
pkg/util/ippool.go	206	212	97.17%
pkg/ipam/ip_range_list.go	68	81	83.95%
pkg/controller/ippool.go	0	118	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/controller/ippool.go	1	0.0%
pkg/ovs/ovn-nb-logical_router_route.go	2	74.6%

Totals
Change from base Build 19453678196:	0.4%
Covered Lines:	11409
Relevant Lines:	51212

---

💛 - Coveralls

[zbb88888]

@oilbeater 大佬，帮忙 review 下吧，主要是想扩展 ippool 映射到 address set，这样可以和 vpc 的策略路由一起用