1、安装网络插件报错
error unable to recognize "calico.yaml": no matches for kind "DaemonSet" in version "extensions/v1"'
描述：版本不匹配
解决办法：
地址：https://projectcalico.docs.tigera.io/archive/v3.21/getting-started/kubernetes/self-managed-onprem/onpremises
下载：curl https://docs.projectcalico.org/archive/v3.21/manifests/calico.yaml -O
安装：kubectl apply -f calico.yaml
2、集群初始化报错
问题：
[root@master ~]# kubeadm init --config kubeadm-config.yaml [init] Using Kubernetes version: v1.25.0 [preflight] Running pre-flight checks error execution phase preflight: [preflight] Some fatal errors occurred: [ERROR FileContent--proc-sys-net-ipv4-ip_forward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1 [preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...` To see the stack trace of this error execute with --v=5 or higher
解决办法：
cat > /etc/sysctl.d/k8s.conf << EOF net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 net.bridge.bridge-nf-call-iptables=1 net.bridge.bridge-nf-call-ip6tables=1 net.ipv4.ip_forward=1 net.ipv4.tcp_tw_recycle=0 vm.swappiness=0 vm.overcommit_memory=1 vm.panic_on_oom=0 fs.inotify.max_user_instances=8192 fs.inotify.max_user_watches=1048576 fs.file-max=52706963 fs.nr_open=52706963 net.ipv6.conf.all.disable_ipv6=1 net.netfilter.nf_conntrack_max=2310720 EOF sysctl --system
3、证书由未知机构签名
问题：虚拟机部署 kubernetes 集群，服务器重启后报这个错误
[root@master ~]# kubectl get node Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes") # 无法连接到服务器：x509：证书由未知授权机构签名（可能是因为在尝试验证 candi 时出现“crypto/rsa：验证错误”日期权威证书“kubernetes”）
解决办法：
配置用户使用 kubectl 访问集群
mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config
root 用户执行以下，设置环境变量：
export KUBECONFIG=/etc/kubernetes/admin.conf
4、无法确定运行时api版本
问题1：
[root@master ~]# crictl ps WARN[0000] runtime connect using default endpoints: [unix:///var/run/dockershim.sock unix:///run/containerd/containerd.sock unix:///run/crio/crio.sock unix:///var/run/cri-dockerd.sock]. As the default settings are now deprecated, you should set the endpoint instead. ERRO[0000] unable to determine runtime API version: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/dockershim.sock: connect: no such file or directory" WARN[0000] image connect using default endpoints: [unix:///var/run/dockershim.sock unix:///run/containerd/containerd.sock unix:///run/crio/crio.sock unix:///var/run/cri-dockerd.sock]. As the default settings are now deprecated, you should set the endpoint instead. ERRO[0000] unable to determine image API version: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/dockershim.sock: connect: no such file or directory"
问题2：
[root@node1 ~]# crictl ps I1128 17:01:24.056664 24303 util_unix.go:104] "Using this endpoint is deprecated, please consider using full URL format" endpoint="/run/containerd/containerd.sock" URL="unix:///run/containerd/containerd.sock" I1128 17:01:24.061791 24303 util_unix.go:104] "Using this endpoint is deprecated, please consider using full URL format" endpoint="/run/containerd/containerd.sock" URL="unix:///run/containerd/containerd.sock"
解决办法：
crictl config runtime-endpoint unix:///run/containerd/containerd.sock crictl config image-endpoint unix:///run/containerd/containerd.sock
查看：
[root@master ~]# crictl ps CONTAINER IMAGE CREATED STATE NAME ATTEMPT POD ID POD e7878752e4ae6 b6e6ee0788f20 30 minutes ago Running calico-node 1 b5934818396e3 calico-node-f6xfz f589de8f6f6ca 58a9a0c6d96f2 30 minutes ago Running kube-proxy 1 001b4ae7fedf5 kube-proxy-grx5m 2cf2f96c4d4fc bef2cf3115095 30 minutes ago Running kube-scheduler 3 7c294db1f3e0c kube-scheduler-master 054ad592ffac9 a8a176a5d5d69 30 minutes ago Running etcd 2 a8c6650e2382e etcd-master a8becb1e17be7 1a54c86c03a67 30 minutes ago Running kube-controller-manager 2 070b5d24d34d0 kube-controller-manager-master 065ef061923aa 4d2edfd10d3e3 30 minutes ago Running kube-apiserver 2 f5c40d1e9cc76 kube-apiserver-master
标签：endpoint,run,kubernetes,部署,containerd,sock,unix,集群,kube From： https://www.cnblogs.com/yangzp/p/16380803.html