运行 kubeadm init --config=kubeadm.yml --upload-certs | tee kubeadm-init.log 命令报错： failed to pull image registry.aliyuncs.com/google_containers/coredns:v1.8.0

完整错误如下

kubeadm init --config=kubeadm.yml --upload-certs | tee kubeadm-init.log

[init] Using Kubernetes version: v1.21.2
[preflight] Running pre-flight checks
        [WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/
        [WARNING Hostname]: hostname "node" could not be reached
        [WARNING Hostname]: hostname "node": lookup node on 127.0.0.53:53: server misbehaving
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
error execution phase preflight: [preflight] Some fatal errors occurred:
        [ERROR ImagePull]: failed to pull image registry.aliyuncs.com/google_containers/coredns:v1.8.0: output: Error response from daemon: manifest for registry.aliyuncs.com/google_containers/coredns:v1.8.0 not found: manifest unknown: manifest unknown
, error: exit status 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

提示拉取 registry.aliyuncs.com/google_containers/coredns:v1.8.0 这个镜像失败
使用 kubeadm config images list --config kubeadm.yml 命令查询需要下载的镜像

kubeadm config images list --config kubeadm.yml

registry.aliyuncs.com/google_containers/kube-apiserver:v1.21.2
registry.aliyuncs.com/google_containers/kube-controller-manager:v1.21.2
registry.aliyuncs.com/google_containers/kube-scheduler:v1.21.2
registry.aliyuncs.com/google_containers/kube-proxy:v1.21.2
registry.aliyuncs.com/google_containers/pause:3.4.1
registry.aliyuncs.com/google_containers/etcd:3.4.13-0
registry.aliyuncs.com/google_containers/coredns:v1.8.0

使用 docker images 命令查询镜像

docker images

registry.aliyuncs.com/google_containers/kube-apiserver            v1.21.2    106ff58d4308   3 weeks ago     126MB
registry.aliyuncs.com/google_containers/kube-controller-manager   v1.21.2    ae24db9aa2cc   3 weeks ago     120MB
registry.aliyuncs.com/google_containers/kube-scheduler            v1.21.2    f917b8c8f55b   3 weeks ago     50.6MB
registry.aliyuncs.com/google_containers/kube-proxy                v1.21.2    a6ebd1c1ad98   3 weeks ago     131MB
registry.aliyuncs.com/google_containers/pause                     3.4.1      0f8457a4c2ec   6 months ago    683kB
registry.aliyuncs.com/google_containers/etcd                      3.4.13-0   0369cf4303ff   10 months ago   253MB

发现已下载的镜像里面没有 registry.aliyuncs.com/google_containers/coredns:v1.8.0 这个镜像
使用 docker 命令拉取镜像

docker pull registry.aliyuncs.com/google_containers/coredns:1.8.0

Kubernetes 需要的是 registry.aliyuncs.com/google_containers/coredns:v1.8.0 这个镜像，使用 docker tag 命令重命名

# 重命名
docker tag registry.aliyuncs.com/google_containers/coredns:1.8.0 registry.aliyuncs.com/google_containers/coredns:v1.8.0
# 删除原有镜像
docker rmi registry.aliyuncs.com/google_containers/coredns:1.8.0

再次运行初始化命令

kubeadm init --config=kubeadm.yml --upload-certs | tee kubeadm-init.log

提示成功

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

按照上面提示配置 kubectl

mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

# 非 ROOT 用户执行
chown $(id -u):$(id -g) $HOME/.kube/config

验证是否成功

kubectl get node

# 能够打印出节点信息表示成功
NAME   STATUS     ROLES                  AGE   VERSION
node   NotReady   control-plane,master   31m   v1.21.2