k8s部署ingress-nginx报错排错
  部署ingress-nginx不成功出现错误提⽰
kubectl describe pod nginx-ingress-controller-6ffc8fdf96-xtg6n -n ingress-nginx
Normal  Scheduled  <unknown>        default-scheduler      Successfully assigned ingress-nginx/nginx-ingress-controller-6ffc8fdf96-xtg6n to 192.168.1.12
Normal  Pulled    21s              kubelet, 192.168.1.12  Container image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0" already present on machine
Normal  Created    21s              kubelet, 192.168.1.12  Created container nginx-ingress-controller
Normal  Started    20s              kubelet, 192.168.1.12  Started container nginx-ingress-controller
Warning  Unhealthy  5s (x2 over 15s)  kubelet, 192.168.1.12  Readiness probe failed: Get 192.168.1.12:10254/healthz: dial tcp 192.168.1.12:10254: connect: connection refused  Warning  Unhealthy  2s                kubelet, 192.168.1.12  Liveness probe failed: Get 192.168.1.12:10254/healthz: dial tcp 192.168.1.12:10254: connect: connection refused
  对应node的kubelet⽇志
systemctl status kube-proxy -l
  报错如下
:490] preStop hook for container "nginx-ingress-controller" failed: command '/wait-shutdown' exited with 137:
  查看pod⽇志
# kubectl logs nginx-ingress-controller-6ffc8fdf96-xtg6n -n ingress-nginx
-------------------------------------------------------------------------------
NGINX Ingress controller
Release:      0.30.0
Build:        git-7e65b90c4
Repository:    github/kubernetes/ingress-nginx
nginx version: nginx/1.17.8
-------------------------------------------------------------------------------
W0430 09:48:42.198239      :260] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false)
W0430 09:48:42.198310      6 :543] Neither --kubeconfig nor --master was specified.  Using the inClusterConfig.  This might not work.
I0430 09:48:42.198533      :193] Creating API client for 10.0.0.1:443
  判断是10.0.0.443有问题
  node上telnet失败
exited# telnet 10.0.0.1 443
Trying 10.0.
  解决⽅法，修改kube-proxy配置把流量转发该成ipvs模式
cat /opt/kubernetes/cfg/kube-proxy
# cat /opt/kubernetes/cfg/kube-proxy
KUBE_PROXY_OPTS="--logtostderr=false \
--log-dir=/opt/kubernetes/logs/kube-proxy \
--v=4 \
--hostname-override=192.168.1.12 \
--cluster-cidr=10.0.0.0/24 \
--proxy-mode=ipvs \
--masquerade-all=true \
--kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig"
  增加的内容
  重启kube-proxy
  重新部署ingress-nginx即可

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