分类导航
LinuxWindowsCentOSUbuntuNginxMemcacheApacheRedisDockerBashAzureTomcatLNMPShell数据结构服务器其他

Docker实践―CentOS7上部署Kubernetes详解

CentOS   发布时间：2022-05-09  发布网站：大佬教程  code.js-code.com
大佬教程收集整理的这篇文章主要介绍了Docker实践―CentOS7上部署Kubernetes详解，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

Kubernetes架构@H_262_3@

Kubernetes的整体架构如下：

Docker实践―CentOS7上部署Kubernetes详解

@H_800_0@master为主控节点，上面运行apiserver，scheduler，controller-manager等组件。Minion相当于工作节点，上面运行kubelet，proxy，cAdvisor以及最重要的docker等组件。下面来实际部署一下这套集群管理工具。

环境@H_262_3@

yy1  10.193.6.35

yy2  10.193.6.36

yy1作为master，yy2作为minion。

# cat /etc/centos-release

CentOS Linux release 7.0.1406 (CorE) 

安装kubernetes@H_262_3@

@H_450_36@ # curl https://coPR.fedoraproject.org/coprs/eparis/kubernetes-epel-7/repo/epel-7/eparis-kubernetes-epel-7-epel-7.repo -o /etc/yum.repos.d/eparis-kubernetes-epel-7-epel-7.repo # yum install kubernetes -y

配置yy1@H_262_3@

@H_450_36@ # cat /etc/kubernetes/apiserver ### # kubernetes system config # # The following values are used to configure the kubernetes-apiserver # # The address on the local server to listen to. KUBE_API_ADDRESS="10.193.6.35" # The port on the local server to listen on. KUBE_API_PORT="8080" # How the Replication controller and scheduler find the apiserver KUBE_MASTER="10.193.6.35:8080" # Comma seperated list of minions MINION_ADDRESSES="10.193.6.36" # Port minions listen on MINION_PORT="10250" # cat /etc/kubernetes/config ### # kubernetes system config # # The following values are used to configure varIoUs aspects of all # kubernetes services,including # # kubernetes-apiserver.service # kubernetes-controller-manager.service # kubernetes-kubelet.service # kubernetes-proxy.service # Comma seperated list of nodes in the etcd cluster KUBE_ETCD_SERVERS="http://10.193.6.35:4001" # logging to stderr means we get it in the systemd journal KUBE_LOGTOSTDERR="true" # journal message level,0 is debug KUBE_LOG_LEVEL=0 # Should this cluster be allowed to run privleged docker containers KUBE_ALLOW_PRIV="true"

启动yy1上相关服务@H_262_3@

@H_800_0@master上需要运行etcd，kube-apiserver，kube-controller-manager，kube-scheduler这4个进程。

@H_450_36@ for serviCES in etcd kube-apiserver kube-controller-manager kube-scheduler; do systemctl restart $serviCES systemctl enable $serviCES systemctl status $serviCES done

配置yy2@H_262_3@

@H_450_36@ # cat /etc/kubernetes/kubelet ### # kubernetes kublet (minion) config # The address for the info server to serve on MINION_ADDRESS="10.193.6.36" # The port for the info server to serve on MINION_PORT="10250" # You may leave this blank to use the actual hostname MINION_HOSTNAME="10.193.6.36" # cat /etc/kubernetes/config ### # kubernetes system config # # The following values are used to configure varIoUs aspects of all # kubernetes services,including # # kubernetes-apiserver.service # kubernetes-controller-manager.service # kubernetes-kubelet.service # kubernetes-proxy.service # Comma seperated list of nodes in the etcd cluster KUBE_ETCD_SERVERS="http://10.193.6.35:4001" # logging to stderr means we get it in the systemd journal KUBE_LOGTOSTDERR="true" # journal message level,0 is debug KUBE_LOG_LEVEL=0 # Should this cluster be allowed to run privleged docker containers KUBE_ALLOW_PRIV="true"

修改yy2 kubelet的配置@H_262_3@

CentOS7上没有docker.socket服务，注释掉kubelet中对docker.socket的依赖。

/usr/lib/systemd/system/kubelet.service

@H_450_36@ [Unit] Description=Kubernetes Kubelet #After=docker.socket cadvisor.service After=cadvisor.service #requires=docker.socket cadvisor.service requires=cadvisor.service

启动yy2上的相关服务@H_262_3@

@H_800_0@minion上需要运行kube-proxy，kubelet以及docker。

@H_450_36@ for serviCES in kube-proxy kubelet docker; do systemctl restart $serviCES systemctl enable $serviCES systemctl status $serviCES done

创建pod描述文件@H_262_3@

创建一个apache的pod描述文件。

@H_450_36@ # cat apache.json { "id": "apache","desiredState": { "manifest": { "version": "v1beta1","id": "apache-1","containers": [{ "name": "master","image": "fedora/apache","ports": [{ "containerPort": 80,"hostPort": 80 }] }] } },"labels": { "name": "apache" } }

创建pod@H_262_3@

通过客户端工具kubecfg提交任务给apiserver，由scheduler选择一个minion部署容。

@H_450_36@ [root@yy1 ~]# kubecfg -c apache.json create pods I0925 06:43:26.768122 09313 request.go:292] WaiTing for completion of /operations/1 ID Image(s) Host Labels Status ---------- ---------- ---------- ---------- ---------- apache fedora/apache / name=apache WaiTing [root@yy1 ~]# kubecfg list pods ID Image(s) Host Labels Status ---------- ---------- ---------- ---------- ---------- apache fedora/apache 10.193.6.36/ name=apache WaiTing

apache服务会自动部署到机器yy2，yy2上的docker会自动下载image，然后启动apache服务。顺利的话，过一会儿，apache服务就会在yy2上起来。

@H_450_36@ [root@yy1 ~]# kubecfg list pods ID Image(s) Host Labels Status ---------- ---------- ---------- ---------- ---------- apache fedora/apache 10.193.6.36/ name=apache Running

Docker实践―CentOS7上部署Kubernetes详解

可以尝试访问一下，

Docker实践―CentOS7上部署Kubernetes详解

 以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程小技巧。

您可能感兴趣的文章:

  • 使用Kubeadm在CentOS7.2上部署Kubernetes集群的方法

大佬总结

以上是大佬教程为你收集整理的Docker实践―CentOS7上部署Kubernetes详解全部内容，希望文章能够帮你解决Docker实践―CentOS7上部署Kubernetes详解所遇到的程序开发问题。

如果觉得大佬教程网站内容还不错，欢迎将大佬教程推荐给程序员好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。
标签：scheduler
猜你在找的CentOS相关文章
其他相关热搜词更多
phpJavaPython程序员load中如何string使用参数jquery开发安装listlinuxiosandroid工具javascriptcap