k8s部署测试实例
查看运行中pod，并运行一个容器
[root@mast-1 k8s]# kubectl get pods
No resources found.
[root@mast-1 k8s]# kubectl run nginx --image=nginx 运行nginx容器
kubectl run --generator=deployment/apps.v1beta1 is DEPRECATED and will be removed i
n a future version. Use kubectl create instead.deployment.apps/nginx created
[root@mast-1 k8s]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-dbddb74b8-h59k2 0/1 ContainerCreating 0 3s
[root@mast-1 k8s]# kubectl get all 查看运行所有的资源
NAME READY STATUS RESTARTS AGE
pod/nginx-dbddb74b8-h59k2 1/1 Running 0 85s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 8h NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deployment.apps/nginx 1 1 1 1 86s NAME DESIRED CURRENT READY AGE
replicaset.apps/nginx-dbddb74b8 1 1 1 86s
[root@mast-1 k8s]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 8h
nginx NodePort 10.0.0.82 <none> 80:31330/TCP 103s
两个节点访问同一个容器
[root@node-1 kubernetes]# curl 10.0.0.82:80
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p> <p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p> <p><em>Thank you for using nginx.</em></p>
</body>
</html>
[root@node-2 cfg]# curl 10.0.0.82:80
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p> <p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p> <p><em>Thank you for using nginx.</em></p>
</body>
</html>
浏览器里访问两个node任意的IP:31330端口
master 节点查看日志，报错并解决
[root@mast-1 k8s]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-dbddb74b8-h59k2 1/1 Running 2 33m
[root@mast-1 k8s]# kubectl logs nginx-dbddb74b8-h59k2
error: You must be logged in to the server (the server has asked for the client to provide credentials ( pods/log nginx-dbddb74b8-h59k2))
[root@node-1 kubernetes]# cat cfg/kubelet.config kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 192.168.10.13
port: 10250
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local.
failSwapOn: false
--------------添加下面参数-----
authentication:
anonymous:
enabled: true
[root@node-2 cfg]# vi kubelet.config kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 192.168.10.14
port: 10250
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local.
failSwapOn: false
----------------------------
authentication:
anonymous:
enabled: true
重启
[root@node-1 kubernetes]# systemctl restart kubelet.service
[root@node-2 cfg]# systemctl restart kubelet.service
[root@mast-1 k8s]# kubectl create clusterrolebinding cluster-system-anonymous --clusterrole=cluster-admin --user=system:anonymous
clusterrolebinding.rbac.authorization.k8s.io/cluster-system-anonymous created
[root@mast-1 k8s]# kubectl logs nginx-dbddb74b8-h59k2
10.0.0.82 - - [23/Apr/2019:09:59:53 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
10.0.0.82 - - [23/Apr/2019:10:02:55 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
172.17.82.0 - - [23/Apr/2019:10:03:11 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
172.17.8.1 - - [23/Apr/2019:10:06:41 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3554.0 Safari/537.36" "-"
2019/04/23 10:06:49 [error] 6#6: *4 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.8.1, server: localhost, request: "GET /favicon.ico HTTP/1.
1", host: "192.168.10.13:31330", referrer: "http://192.168.10.13:31330/"172.17.8.1 - - [23/Apr/2019:10:06:49 +0000] "GET /favicon.ico HTTP/1.1" 404 556 "http://192.168.10.13:31330/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrom
e/71.0.3554.0 Safari/537.36" "-"
动态查看
[root@mast-1 k8s]# kubectl logs nginx-dbddb74b8-h59k2 -f
10.0.0.82 - - [23/Apr/2019:09:59:53 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
10.0.0.82 - - [23/Apr/2019:10:02:55 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
172.17.82.0 - - [23/Apr/2019:10:03:11 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
172.17.8.1 - - [23/Apr/2019:10:06:41 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3554.0 Safari/537.36" "-"
2019/04/23 10:06:49 [error] 6#6: *4 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.8.1, server: localhost, request: "GET /favicon.ico HTTP/1.
1", host: "192.168.10.13:31330", referrer: "http://192.168.10.13:31330/"172.17.8.1 - - [23/Apr/2019:10:06:49 +0000] "GET /favicon.ico HTTP/1.1" 404 556 "http://192.168.10.13:31330/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrom
e/71.0.3554.0 Safari/537.36" "-"
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