在升级 nginx-ingress-controller 期间,从所有入口清除负载均衡器 IP
作者: alfredkrohmer创建于 2024年3月11日更新于 2026年3月11日
标签kind/featurepriority/important-longtermtriage/needs-information
发生了什么:
在将 nginx-ingress-controller Helm 图表升级到新版本（本例中是 4.9.1 到 4.10.0）时，当前的领导者 Pods 会记录以下消息：
I0305 11:08:37.122872 7 nginx.go:379] "Shutting down controller queues"
I0305 11:08:37.137382 7 status.go:135] "removing value from ingress status" address=[{"ip":"10.1.2.3"}]
I0305 11:08:37.146479 7 status.go:304] "updating Ingress status" namespace="service-a-rc" ingress="service-a-rc" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.146522 7 status.go:304] "updating Ingress status" namespace="service-b-rc" ingress="service-b-rc" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.146593 7 status.go:304] "updating Ingress status" namespace="kube-system" ingress="kube-oidc-proxy" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.146648 7 status.go:304] "updating Ingress status" namespace="monitoring" ingress="prometheus-k8s" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.146907 7 status.go:304] "updating Ingress status" namespace="kube-system" ingress="dex" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.146954 7 status.go:304] "updating Ingress status" namespace="monitoring" ingress="thanos-sidecar" currentValue=[{"ip":"10.1.2.3"}] newValue=[]
I0305 11:08:37.960259 7 nginx.go:387] "Stopping admission controller"
E0305 11:08:37.960342 7 nginx.go:326] "Error listening for TLS connections" err="http: Server closed"
I0305 11:08:37.960354 7 nginx.go:395] "Stopping NGINX process"
2024/03/05 11:08:37 [notice] 720#720: signal process started
I0305 11:08:39.013339 7 nginx.go:408] "NGINX process has stopped"
I0305 11:08:39.013371 7 sigterm.go:44] Handled quit, delaying controller exit for 10 seconds
I0305 11:08:49.013693 7 sigterm.go:47] "Exiting" code=0
这导致负载均衡器 IP ("10.1.2.3") 从所有由访问控制器管理的访问状态中被删除，这反过来导致 external-dns 删除这些访问的所有 DNS 记录，从而导致服务中断。内容来源: kubernetes/ingress-nginx