Kubernetes集群实战 项目2拓展训练

项目二任务一拓展训练首先使用的镜像centos/httpd-24-centos7部署deployment控制器，命令如下：[root@master~]#kubectlcreatedeploymenthttpd--image=centos/httpd-24-centos7查看pod状态，命令如下：[root@master~]#kubectlgetpod结果如下：[root@master~]#kubectlgetpod-owideNAMEREADYSTATUSRESTARTSAGEIPNODENOMINATEDNODEREADINESSGATEShttpd-7bb68fdccc-b6c8l1/1Running05m18s4node1<none><none>查看httpd服务版本信息，命令如下：[root@master~]#curl-I4:8080HTTP/1.1403ForbiddenDate:Sun,05Sep202101:23:21GMTServer:Apache/2.4.34(RedHat)OpenSSL/1.0.2k-fipsLast-Modified:Tue,22Sep202023:04:14GMTETag:"f91-5afeefc541780"Accept-Ranges:bytesContent-Length:3985Content-Type:text/html;charset=UTF-8查看容器的名称[root@master~]#kubectldescribepodhttpd-7bb68fdccc-b6c8lName:httpd-7bb68fdccc-b6c8lNamespace:defaultPriority:0Node:node1/0StartTime:Sun,05Sep202109:16:36+0800Labels:app=httpdpod-template-hash=7bb68fdcccAnnotations:<none>Status:RunningIP:4IPs:IP:4ControlledBy:ReplicaSet/httpd-7bb68fdcccContainers:httpd-24-centos7:ContainerID:升级服务版本信息，命令如下：[root@master~]#kubectlsetimagedeployments.appshttpdhttpd-24-centos7=httpd查看服务升级版本信息，命令如下：[root@master~]#curl-I5HTTP/1.1200OKDate:Sun,05Sep202101:32:41GMTServer:Apache/2.4.48(Unix)Last-Modified:Mon,11Jun200718:53:14GMTETag:"2d-432a5e4a73a80"Accept-Ranges:bytesContent-Length:45Content-Type:text/html项目二任务二拓展训练创建deployment，命令如下：[root@master~]#kubectlcreatedeploymenthttpd--image=httpd--replicas=3创建service，命令如下：[root@master~]#kubectlexposedeploymenthttpd--port=80service/httpdexposed[root@master~]#kubectlgetserviceNAMETYPECLUSTER-IPEXTERNAL-IPPORT(S)AGEhttpdClusterIP8<none>80/TCP6s修改pod中的主页内容，命令如下：首先查看pod[root@master~]#kubectlgetpod-owideNAMEREADYSTATUSRESTARTSAGEIPNODENOMINATEDNODEREADINESSGATEShttpd-757fb56c8d-72tlv1/1Running03m37s7node1<none><none>httpd-757fb56c8d-bdn6v1/1Running03m37s1node2<none><none>httpd-757fb56c8d-cnlsw1/1Running03m37s6node1<none><none>然后进入pod容器，修改主页内容以名称为httpd-757fb56c8d-bdn6v的pod为例[root@master~]#kubectlexec-ithttpd-757fb56c8d-bdn6v/bin/bashroot@httpd-757fb56c8d-bdn6v:/usr/local/apache2#e