- K8S 使用deployment 部署nginx服务
deploy文件如下:
[root@k8s-master ~]# cat deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:latest
ports:
- containerPort: 80
apiVersion: v1
kind: Service
metadata:
name: ngx-service
labels:
app: my-nginx
spec:
type: NodePort
ports:
- port: 80
protocol: TCP
name: http
selector:
app: my-nginx
随机端口
- 命令行方式创建nginx服务
(1)、创建一个nginx的pod
现在我们在kubernetes集群中创建一个nginx的pod,验证是否能正常运行。
在master节点执行一下步骤:
[root@k8s-master ~]# kubectl create deployment nginx --image=nginx
deployment.apps/nginx created
[root@k8s-master ~]# kubectl expose deployment nginx --port=80 --type=NodePort
service/nginx exposed
[root@k8s-master ~]#
现在我们查看pod和service
[root@k8s-master ~]# kubectl get pod,svc -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod/nginx-f89759699-rrg5g 1/1 Running 0 3m33s 10.244.2.5 k8s-node02
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/kubernetes ClusterIP 10.1.0.1 443/TCP 71m
service/nginx NodePort 10.1.12.175 80:30990/TCP 3m22s app=nginx
[root@k8s-master ~]#
打印的结果中,前半部分是pod相关信息,后半部分是service相关信息。我们看service/nginx这一行可以看出service暴漏给集群的端口是30990。记住这个端口。
然后从pod的详细信息可以看出此时pod在node2节点之上。node2节点的IP地址是192.168.10.40
(2)、访问nginx验证集群
那现在我们访问一下。打开浏览器(建议火狐浏览器),访问地址就是:
http://192.168.10.40:30990
deploy部署tomcat脚本.
部署tomcat脚本:
`
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: tomcat
name: tomcat
spec:
replicas: 3
selector:
matchLabels:
app: tomcat
template:
metadata:
labels:
app: tomcat
spec:
containers:
– image: tomcat:7.0
imagePullPolicy: IfNotPresent
name: tomcat8
ports:
– containerPort: 8080
Original: https://www.cnblogs.com/saneri/p/14463509.html
Author: 梦徒
Title: K8S 使用deploy部署nginx
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