河南seo网站策划,wordpress微信说说,做竹鼠网站,免费网络推广软件有哪些K8S暴露pod内多个端口
一、背景
公司统一用的某个底包跑jar服务#xff0c;只暴露了8080端口 二、需求
由于有些服务在启动jar服务后#xff0c;会启动多个端口#xff0c;除了8080端口#xff0c;还有别的端口需要暴露#xff0c;我这里就还需要暴露9999端口。
注只暴露了8080端口 二、需求
由于有些服务在启动jar服务后会启动多个端口除了8080端口还有别的端口需要暴露我这里就还需要暴露9999端口。
注解决办法其实是可以直接改底包就好了在底包中多暴露几个端口但是我这边因为无法改底包所以只能通过下面的办法解决。
三、解决办法
我们平时在打版升级的过程中会基于底包写dockerfile来替换最新的jar包得到最终的镜像所以可以这个dockerfile中添加暴露9999端口这样同样也可以增加容器端口暴露如下 $ cat dockerfile
FROM 10.0.8.56/basis-images/basis:tomcatARG jar_nameRUN rm -rf /usr/local/tomcat/*
ADD ./target/${jar_name}.jar /usr/local/tomcat
ADD ./start.sh /usr/local/tomcat
EXPOSE 9999
RUN chmod x /usr/local/tomcat/start.sh$ docker build --build-arg jar_namensw-ai-video . -t 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40
$ docker push 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40
四、实验在docker上跑容器验证是否暴露出8080和9999端口10.0.8.56是我的harbor私有镜像仓库
[ yukw docker-work01 10.0.8.59 ] ~
$ docker login 10.0.8.56
Username: yukw
Password:
WARNING! Your password will be stored unencrypted in /home/yukw/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-storeLogin Succeeded
[ yukw docker-work01 10.0.8.59 ] ~
$ docker run -d -P --name nsyai-test 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40
Unable to find image 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40 locally
2023-07-28-15-40: Pulling from nsyai-test/nsw-ai-video
a8c7037c15e9: Pull complete
7f59206c4cb3: Pull complete
d6593d2ee432: Pull complete
47613084598b: Pull complete
7ef22be88035: Pull complete
edf70be6f818: Pull complete
af72e686cb89: Pull complete
376658e1b07e: Pull complete
6991c8295d7f: Pull complete
f0a023d2bec5: Pull complete
9356db0572c6: Pull complete
1cbc500b22f4: Pull complete
2a8383c1d611: Pull complete
962207b93da3: Pull complete
9fdef278ff07: Pull complete
8cc25cf21f3b: Pull complete
Digest: sha256:e07a648e671746f4408565b2237584303cfdfb7d5a451adfa707dda3fc87d670
Status: Downloaded newer image for 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40
e11553520d6c4d94c71d8d11a699bd4d1c6df8202d4e1ec15b28ca1bcd21ff25
[ yukw docker-work01 10.0.8.59 ] ~
$ docker ps -a |grep nsyai-test
e11553520d6c 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40 /usr/local/tomcat/s… 8 seconds ago Up 7 seconds 0.0.0.0:49154-8080/tcp, 0.0.0.0:49153-9999/tcp nsyai-test
9fd678ee8eeb 10.0.8.56/nsyai-test/nsyai-web:2023-07-12-12-01 /docker-entrypoint.… 2 weeks ago Up 2 weeks 80/tcp my-nsyai-test
[ yukw docker-work01 10.0.8.59 ] ~
$ docker port e11553520d6c
8080/tcp - 0.0.0.0:49154
9999/tcp - 0.0.0.0:49153
实验发现端口暴露成功 容器8080端口随机映射到了宿主机49154端口 容器9999端口随机映射到了宿主机49153端口
五、编写dp.yaml
# cat dp.yaml
apiVersion: apps/v1
kind: Deployment
metadata:annotations:deployment.kubernetes.io/revision: 63description: video模块labels:k8s-app: nsw-ai-videoqcloud-app: nsw-ai-videoname: nsw-ai-videonamespace: nsyai-test
spec:progressDeadlineSeconds: 600replicas: 1revisionHistoryLimit: 10selector:matchLabels:k8s-app: nsw-ai-videoqcloud-app: nsw-ai-videotemplate:metadata:labels:k8s-app: nsw-ai-videoqcloud-app: nsw-ai-videospec:containers:- name: nsw-ai-videoimage: 10.0.8.56/nsyai-test/nsw-ai-video:2023-07-28-15-40imagePullPolicy: AlwayslivenessProbe:failureThreshold: 5initialDelaySeconds: 180periodSeconds: 10successThreshold: 1tcpSocket:port: 8080timeoutSeconds: 6readinessProbe:failureThreshold: 5initialDelaySeconds: 60periodSeconds: 10successThreshold: 1tcpSocket:port: 8080timeoutSeconds: 60resources:limits:cpu: 2000mmemory: 2Girequests:cpu: 1memory: 512Miports:- containerPort: 8080name: image-portprotocol: TCP- containerPort: 9999name: xxl-job-portprotocol: TCPimagePullSecrets:- name: nsw-harbor-secret containerPort是在pod控制器中定义的、pod中的容器需要暴露的端口
六、编写svc.yaml
# cat svc.yaml
apiVersion: v1
kind: Service
metadata:name: nsw-ai-videonamespace: nsyai-test
spec:externalTrafficPolicy: Clusterports:- name: 8080-8080-tcpnodePort: 30083port: 8080protocol: TCPtargetPort: 8080- name: 9999-9999-tcpnodePort: 30084port: 9999protocol: TCPtargetPort: 9999selector:k8s-app: nsw-ai-videoqcloud-app: nsw-ai-videotype: NodePort七、应用配置清单
# kubectl apply -f dp.yaml
# kubectl apply -f svc.yaml# kubectl get svc -n nsyai-test
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nsw-ai-gateway ClusterIP 10.0.0.107 none 8080/TCP 16d
nsw-ai-video NodePort 10.0.0.119 none 8080:30083/TCP,9999:30084/TCP 3h25m
nsyai-pc-nginx NodePort 10.0.0.185 none 80:30082/TCP 16d 总结
1、从上面可以发现在制作pod镜像中EXPOSE暴露了两个端口这个是容器本身需要暴露的端口在dp.yaml中配置了两个containerPort这个是pod中的容器需要暴露的端口在svc.yaml中配置了nodePortporttargetport分别代表宿主机端口service端口和容器端口。 好了这就是K8S暴露pod内多个端口的办法了如有问题可与博主一起交流讨论
