upgrade 共 31 个标签 All bugs chatops client-go controller ddos dev devops event freetalk GlusterFs healthCheck informer ingress istio k8s k8swatch keepalive kube-proxy kubeadm kubelet kubernetes log monitor nginx node performance service mesh sre story upgrade 源码 2019-04-05 k8s从1.7升1.9版本遇到的一个问题