linux怎么查看本机内存大小
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2022-09-12
k8s部署-18-集群测试
k8s部署-18-集群测试
通过这几篇文章，相信我们已经通过kubernetes-the-hard-way的方式，将k8s集群搭建成功了，那么如何进行验证呢？无非就是新建一个daemonset嘛，然后通过检测各种网络连通性验证，那么话不多说，直接来实操吧。
新建nginx的yaml文件
# 建立配置文件[root@node1 ~]# cat > nginx-ds.yml <
检查IP地址连通性
# 获取到pod的IP地址[root@node1 ~]# kubectl get pod -o wideNAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATESnginx-ds-m8wrf 1/1 Running 0 2m31s 10.200.135.3 node3
Welcome to nginx!
If you see this page, the nginx web server is successfully installed andworking. Further configuration is required.
For online documentation and support please refer to
[root@node2 ~]# # 再检查通过node的IP地址是否能通，使用如下命令，在worker节点上执行[root@node2 ~]# curl 10.200.135.3:80[root@node2 ~]# curl 10.200.104.2:80检查dns
# 创建一个nginx的pod[root@node1 ~]# cat > pod-nginx.yaml <
日志功能
# 查看现在有的pod[root@node1 ~]# kubectl get podNAME READY STATUS RESTARTS AGEnginx 1/1 Running 0 3m55snginx-ds-m8wrf 1/1 Running 0 12mnginx-ds-zc5qt 1/1 Running 0 12m[root@node1 ~]# # 可以看到现在有3个pod，我们随机选择一个，查看下日志[root@node1 ~]# kubectl logs nginx/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d//docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh/docker-entrypoint.sh: Configuration complete; ready for start up2022/03/20 12:14:04 [notice] 1#1: using the "epoll" event method2022/03/20 12:14:04 [notice] 1#1: nginx/1.21.62022/03/20 12:14:04 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6) 2022/03/20 12:14:04 [notice] 1#1: OS: Linux 3.10.0-862.el7.x86_642022/03/20 12:14:04 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:10485762022/03/20 12:14:04 [notice] 1#1: start worker processes2022/03/20 12:14:04 [notice] 1#1: start worker process 31[root@node1 ~]#
exec功能
[root@node1 ~]# kubectl get pods -l app=nginx-dsNAME READY STATUS RESTARTS AGEnginx-ds-m8wrf 1/1 Running 0 13mnginx-ds-zc5qt 1/1 Running 0 13m[root@node1 ~]# [root@node1 ~]# kubectl get pods -lError: flag needs an argument: 'l' in -lSee 'kubectl get --help' for usage.[root@node1 ~]# kubectl get pods -l app=nginx-dsNAME READY STATUS RESTARTS AGEnginx-ds-m8wrf 1/1 Running 0 13mnginx-ds-zc5qt 1/1 Running 0 13m[root@node1 ~]# kubectl exec -it nginx-ds-m8wrf -- nginx -vnginx version: nginx/1.21.6[root@node1 ~]#
至此，我们的k8s集群也验证完毕了，恭喜下自己吧。
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