我使用以下命令加入了一个新的 kubenretes 节点：
kubeadm join 172.29.217.209:6443 --token jew814.e5iof6qwvzg46d9q --discovery-token-ca-cert-hash sha256:21919c93d652
这是当前的节点状态：
> kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
k8smasterone Ready control-plane 2y100d v1.28.1 172.29.217.209 <none> CentOS Linux 7 (Core) 3.10.0-1160.95.1.el7.x86_64 containerd://1.6.12
k8sslave01 Ready <none> 22h v1.28.3 172.29.161.175 <none> Debian GNU/Linux 12 (bookworm) 6.1.0-13-amd64 containerd://1.6.20
我尽量让两个节点的 kubernetes 版本相同，k8sslave01 上的 kube-proxy 日志如下：
I1112 09:12:24.749986 1 node.go:141] Successfully retrieved node IP: 172.29.161.175
I1112 09:12:24.750830 1 conntrack.go:52] "Setting nf_conntrack_max" nfConntrackMax=131072
I1112 09:12:24.770716 1 server.go:632] "kube-proxy running in dual-stack mode" primary ipFamily="IPv4"
I1112 09:12:24.777426 1 server_others.go:218] "Using ipvs Proxier"
I1112 09:12:24.777460 1 server_others.go:421] "Detect-local-mode set to ClusterCIDR, but no cluster CIDR for family" ipFamily="IPv6"
I1112 09:12:24.777466 1 server_others.go:438] "Defaulting to no-op detect-local"
I1112 09:12:24.777710 1 proxier.go:408] "IPVS scheduler not specified, use rr by default"
I1112 09:12:24.777899 1 proxier.go:408] "IPVS scheduler not specified, use rr by default"
I1112 09:12:24.777946 1 ipset.go:116] "Ipset name truncated" ipSetName="KUBE-6-LOAD-BALANCER-SOURCE-CIDR" truncatedName="KUBE-6-LOAD-BALANCER-SOURCE-CID"
I1112 09:12:24.777972 1 ipset.go:116] "Ipset name truncated" ipSetName="KUBE-6-NODE-PORT-LOCAL-SCTP-HASH" truncatedName="KUBE-6-NODE-PORT-LOCAL-SCTP-HAS"
I1112 09:12:24.778047 1 server.go:846] "Version info" version="v1.28.2"
I1112 09:12:24.778084 1 server.go:848] "Golang settings" GOGC="" GOMAXPROCS="" GOTRACEBACK=""
I1112 09:12:24.778478 1 config.go:97] "Starting endpoint slice config controller"
I1112 09:12:24.778572 1 shared_informer.go:311] Waiting for caches to sync for endpoint slice config
I1112 09:12:24.778639 1 config.go:188] "Starting service config controller"
I1112 09:12:24.778696 1 shared_informer.go:311] Waiting for caches to sync for service config
I1112 09:12:24.778789 1 config.go:315] "Starting node config controller"
I1112 09:12:24.778801 1 shared_informer.go:311] Waiting for caches to sync for node config
I1112 09:12:24.879459 1 shared_informer.go:318] Caches are synced for service config
I1112 09:12:24.879517 1 shared_informer.go:318] Caches are synced for endpoint slice config
I1112 09:12:24.879688 1 shared_informer.go:318] Caches are synced for node config
但是当我尝试从 k8sslave01 访问 kubernetes pod时：
root@k8sslave01:/var/lib# curl -k https://10.96.0.1:443
curl: (28) Failed to connect to 10.96.0.1 port 443 after 130551 ms: Couldn't connect to server
k8sslave01 上的 pod 也失败了。什么原因可能导致此问题？是否可以仅通过启动 kube-proxy 来访问主服务器上的 pod？