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k8s 编写nginx资源文件
k8s 编写nginx资源文件
1. 要求
- 通过explain定义deployment类型的控制器跑一个nginx的pod，要做端口映射，要能够在宿主机外面访问
2. 编写用一个资源文件用来运行nginx pod
[root@k8s-master manifest]# vim nginx-pod.yml [root@k8s-master manifest]# kubectl apply -f nginx-pod.yml deployment.apps/nginx-pod created [root@k8s-master manifest]# cat nginx-pod.yml apiVersion: apps/v1 kind: Deployment metadata: labels: abb: mushuang app: test name: nginx-pod namespace: dev spec: replicas: 3 selector: matchLabels: app: nginxlab template: metadata: labels: app: nginxlab name: containerlab namespace: dev spec: containers: - name: nginx image: nginx:latest imagePullPolicy: IfNotPresent [root@k8s-master manifest]# [root@k8s-master manifest]# kubectl get -f nginx-pod.yml NAME READY UP-TO-DATE AVAILABLE AGE nginx-pod 3/3 3 3 34s [root@k8s-master manifest]# kubectl get pods -n dev NAME READY STATUS RESTARTS AGE nginx-pod-5c7b58d6bb-bltl9 1/1 Running 0 44s nginx-pod-5c7b58d6bb-p5hwr 1/1 Running 0 44s nginx-pod-5c7b58d6bb-rlzn4 1/1 Running 0 44s [root@k8s-master manifest]#- 1
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3. 创建service
[root@k8s-master ~]# kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 2d21h [root@k8s-master ~]# kubectl get pods -n dev NAME READY STATUS RESTARTS AGE nginx-pod-5c7b58d6bb-bltl9 1/1 Running 0 2m43s nginx-pod-5c7b58d6bb-p5hwr 1/1 Running 0 2m43s nginx-pod-5c7b58d6bb-rlzn4 1/1 Running 0 2m43s [root@k8s-master ~]# [root@k8s-master manifest]# cat nginx-svc.yml apiVersion: v1 kind: Service metadata: labels: app: nginxlab name: containerlab namespace: dev spec: ports: - name: svcport port: 80 targetPort: 80 protocol: TCP selector: app: nginxlab type: NodePort [root@k8s-master manifest]# [root@k8s-master manifest]# kubectl apply -f nginx-svc.yml service/containerlab created- 1
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3.1 查看并在集群中访问
[root@k8s-master ~]# kubectl get pods -n dev NAME READY STATUS RESTARTS AGE nginx-pod-5c7b58d6bb-bltl9 1/1 Running 0 13m nginx-pod-5c7b58d6bb-p5hwr 1/1 Running 0 13m nginx-pod-5c7b58d6bb-rlzn4 1/1 Running 0 13m [root@k8s-master ~]# kubectl get pods -n dev -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES nginx-pod-5c7b58d6bb-bltl9 1/1 Running 0 14m 10.244.2.39 k8s-node2 <none> <none> nginx-pod-5c7b58d6bb-p5hwr 1/1 Running 0 14m 10.244.1.28 k8s-node1 <none> <none> nginx-pod-5c7b58d6bb-rlzn4 1/1 Running 0 14m 10.244.2.40 k8s-node2 <none> <none> [root@k8s-master ~]# [root@k8s-master ~]# kubectl get svc -n dev NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE containerlab NodePort 10.99.32.163 <none> 80:30514/TCP 2m47s [root@k8s-master manifest]# kubectl get -f nginx-svc.yml NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE containerlab NodePort 10.99.32.163 <none> 80:30514/TCP 43s [root@k8s-master manifest]# curl 10.99.32.163 <!DOCTYPE html> <html> <head> <title>Welcome to nginx! <style> html { color-scheme: light dark; } body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style> </head> <body> <h1>Welcome to nginx! <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@k8s-master manifest]#- 1
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3.2 在浏览器中访问
- http://192.168.232.128:30514/
3.3 查看deploy和svc标签
[root@k8s-master manifest]# kubectl get -f nginx-pod.yml NAME READY UP-TO-DATE AVAILABLE AGE nginx-pod 3/3 3 3 29m [root@k8s-master manifest]# kubectl get -f nginx-svc.yml NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE containerlab NodePort 10.99.32.163 <none> 80:30514/TCP 17m [root@k8s-master manifest]# kubectl get -f nginx-pod.yml --show-labels NAME READY UP-TO-DATE AVAILABLE AGE LABELS nginx-pod 3/3 3 3 29m app=test [root@k8s-master manifest]# kubectl get -f nginx-svc.yml --show-labels NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE LABELS containerlab NodePort 10.99.32.163 <none> 80:30514/TCP 17m app=nginxlab [root@k8s-master manifest]#- 1
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- 原文地址：https://blog.csdn.net/mushuangpanny/article/details/126779245
