本地调试k8s控制器和webhook

本地安装minikube，

将validatingwebhookconfiguration和mutatingwebhookconfiguration里面的apiserver配置为https://host.minikube.internal:8443

k8s控制器启动时，webhook服务config里面添加host.minikube.internal域名:

dnsNames = append(dnsNames, "host.minikube.internal")

config := certutil.Config{
    CommonName:   genCommonDomainName(),
    Organization: nil,
    AltNames:     certutil.AltNames{DNSNames: dnsNames, IPs: ips},
    Usages:       []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth, x509.ExtKeyUsageServerAuth},
}

这样不论重启本机ip如何变化，都能调试webhook。