feat: add leader election function to the scheduler extension - #87
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coldzerofear wants to merge 8 commits into
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feat: add leader election function to the scheduler extension#87coldzerofear wants to merge 8 commits into
coldzerofear wants to merge 8 commits into
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Cluster Autoscaler PR kubernetes/autoscaler#9786 把 HTTP scheduler extender 接进了扩容仿真链路，使 CA 能感知 extender 管理的 vGPU 资源。 vgpu-manager 作为标准 extender 正是受益方，但当前 Filter 无法被仿真 安全调用。 核心阻塞：Filter 把「可行性判断」与「乐观预分配提交」耦合在一起， 命中节点后会 PatchPodPreAllocatedMetadata 真改 Pod、写 podLister 缓存并发 Event，而 CA 仿真必须只读且会跨 nodegroup 多轮调用。 本文档给出改造设计：抽出只读的 feasibleNodes() 作为共享可行性核心 （allocator.Allocate 本就在 DeepCopy 上纯计算），提交段内聚为 commitPreAllocation() 仅真实路径调用；新增独立只读端点 /scheduler/filter-dryrun 供 CA 配置 filterVerb 指向，不占串行锁。 scale-from-0 依赖模板节点容量暴露的标准化，划入 Phase 2。 含方案选型对比、详细改动点、CA 侧配置样例、影响面与测试计划。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: coldzerofear <coldzerofear@outlook.com>
Signed-off-by: coldzerofear <coldzerofear@outlook.com>
Signed-off-by: coldzerofear <coldzerofear@outlook.com>
Signed-off-by: coldzerofear <coldzerofear@outlook.com>
Signed-off-by: coldzerofear <coldzerofear@outlook.com>
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