CentOS7环境部署kubenetes1,java面试八股文汇总

mkdir -p $HOME/.kube

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

sudo chown ( i d − u ) : (id -u): (idu):(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.

Run “kubectl apply -f [podnetwork].yaml” with one of the options listed at:

https://kubernetes.io/docs/concepts/cluster-administration/addons/

You can now join any number of machines by running the following on each node

as root:

kubeadm join 192.168.119.157:6443 --token jtoche.kcb0kvylmdyfh089 --discovery-token-ca-cert-hash sha256:76090108cf1281c3c2b82b315f25d85380fadfa545581745c13600a0800016df

请将最后一整行的内容"kubeadm join 192.168.119.157:6443 …"保存好,这是node节点加入kubernates环境时用到的;

  1. 上面的输出信息中提示要做些配置信息,执行以下命令:

mkdir -p $HOME/.kube \

&& cp -i /etc/kubernetes/admin.conf $HOME/.kube/config \

&& chown ( i d − u ) : (id -u): (idu):(id -g) $HOME/.kube/config

  1. 部署pod network,官方文档如下图所示,有多种方案,如果选用Flannel,那么在执行kubeadmin init命令时,要带上绿框中的参数,这个我们刚才在执行kubeadmin init时已经带上了:

在这里插入图片描述

如上图红框所示,安装Flannel需要执行如下命令:

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml

执行成功后控制台输入如下:

[root@localhost ~]# kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de

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4c0d86c5cd2643275/Documentation/kube-flannel.yml

clusterrole.rbac.authorization.k8s.io/flannel created

clusterrolebinding.rbac.authorization.k8s.io/flannel created

serviceaccount/flannel created

configmap/kube-flannel-cfg created

daemonset.extensions/kube-flannel-ds-amd64 created

daemonset.extensions/kube-flannel-ds-arm64 created

daemonset.extensions/kube-flannel-ds-arm created

daemonset.extensions/kube-flannel-ds-ppc64le created

daemonset.extensions/kube-flannel-ds-s390x created

  1. 执行以下命令查看pod情况:

kubectl get pods --all-namespaces

控制台输出如下,如果您的pod信息少于以下内容,则有可能是某些:

[root@localhost ~]# kubectl get pods --all-namespaces

NAMESPACE NAME READY STATUS RESTARTS AGE

kube-system coredns-576cbf47c7-564dg 1/1 Running 0 164m

kube-system coredns-576cbf47c7-snqkd 1/1 Running 0 164m

kube-system etcd-localhost.localdomain 1/1 Running 0 164m

kube-system kube-apiserver-localhost.localdomain 1/1 Running 0 163m

kube-system kube-controller-manager-localhost.localdomain 1/1 Running 0 163m

kube-system kube-flannel-ds-amd64-r8wbb 1/1 Running 0 4m17s

kube-system kube-proxy-z7kn2 1/1 Running 0 164m

kube-system kube-scheduler-localhost.localdomain 1/1 Running 0 163m

  1. 执行命令docker images看看下载了哪些镜像:

[root@localhost ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

k8s.gcr.io/kube-proxy v1.12.2 15e9da1ca195 10 days ago 96.5 MB

k8s.gcr.io/kube-apiserver v1.12.2 51a9c329b7c5 10 days ago 194 MB

k8s.gcr.io/kube-controller-manager v1.12.2 15548c720a70 10 days ago 164 MB

k8s.gcr.io/kube-scheduler v1.12.2 d6d57c76136c 10 days ago 58.3 MB

k8s.gcr.io/etcd 3.2.24 3cab8e1b9802 6 weeks ago 220 MB

k8s.gcr.io/coredns 1.2.2 367cdc8433a4 2 months ago 39.2 MB

quay.io/coreos/flannel v0.10.0-amd64 f0fad859c909 9 months ago 44.6 MB

k8s.gcr.io/pause 3.1 da86e6ba6ca1 10 months ago 742 kB

至此,master节点已经部署成功,下一章继续实战,将node加入集群环境;

五部曲全文链接

  1. 《CentOS7环境部署kubenetes1.12版本五部曲之一:标准化机器》;

  2. 《CentOS7环境部署kubenetes1.12版本五部曲之二:创建master节点》;

  3. 《CentOS7环境部署kubenetes1.12版本五部曲之三:node节点加入》;

  4. 《CentOS7环境部署kubenetes1.12版本五部曲之四:安装dashboard》;

  5. 《CentOS7环境部署kubenetes1.12版本五部曲之五:安装kubectl》;

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CentOS7环境部署kubenetes1,java面试八股文汇总_第1张图片

版本五部曲之三:node节点加入》]( );

  1. 《CentOS7环境部署kubenetes1.12版本五部曲之四:安装dashboard》;

  2. 《CentOS7环境部署kubenetes1.12版本五部曲之五:安装kubectl》;

欢迎关注我的公众号:程序员欣宸

[外链图片转存中…(img-BHPjFMCe-1638670964650)]

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