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K8s实践指南 - 版本历史
2026-04-19T10:44:45Z
本wiki上该页面的版本历史
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Evan：导入1个版本
2019-10-14T13:48:54Z
<p>导入1个版本</p>
<p><b>新页面</b></p><div>==深入service==<br />
<br />
=== 集群外部访问pod or service===<br />
<br />
====将容器应用的端口映射到物理机 ====<br />
<pre><br />
1. hostPort<br />
<br />
cat pod-hostport.yaml<br />
apiVersion: v1<br />
kind: Pod<br />
metadata:<br />
name: webapp <br />
labels:<br />
app: webapp<br />
spec:<br />
containers:<br />
- name: webapp<br />
image: tomcat<br />
ports: <br />
- containerPort: 8080 <br />
hostPort: 8081 <br />
<br />
kubectl create -f pod-hostport.yaml<br />
<br />
#是没有反应的 哈哈<br />
sudo netstat -nlpt | grep 8081<br />
<br />
#此处masterip 为192.168.88.58<br />
<br />
http://192.168.88.58:8081/<br />
<br />
<br />
2.hostNetwork: true<br />
<br />
cat pod-hostport.yaml <br />
apiVersion: v1<br />
kind: Pod<br />
metadata:<br />
name: webapp <br />
labels:<br />
app: webapp<br />
spec:<br />
hostNetwork: true<br />
containers:<br />
- name: webapp<br />
image: tomcat<br />
ports: <br />
- containerPort: 8080 <br />
<br />
<br />
sudo netstat -nlpt | grep 808<br />
tcp6 0 0 :::8080 :::* LISTEN 28100/java<br />
<br />
<br />
http://192.168.88.58:8080/<br />
<br />
<br />
</pre><br />
==== service的端口映射到物理机====<br />
<pre><br />
1. Nodeport<br />
<br />
cat pod-hostport.yaml<br />
apiVersion: v1<br />
kind: Pod<br />
metadata:<br />
name: webapp <br />
labels:<br />
app: webapp<br />
spec:<br />
type: NodePort<br />
- name: webapp<br />
image: tomcat<br />
ports: <br />
- port: 8080 <br />
targetPort: 8080<br />
NodePort: 8081 <br />
selector:<br />
app: webapp<br />
<br />
<br />
http://192.168.88.58:8081<br />
<br />
<br />
<br />
2. 映射到云服务器提供商的loadbalancer 地址<br />
<br />
</pre><br />
<br />
<br />
<br />
<br />
=DigitalOcean k8s=<br />
[https://blog.csdn.net/cpongo4/article/details/89146967 DigitalOcean推出托管Kubernetes服务]<br />
<br />
<br />
https://cloud.digitalocean.com/kubernetes/clusters?i=d097a0<br />
<br />
可以测试在这上面买二到三台机器 比vultr便宜 不一定呢 <br />
<br />
[https://juejin.im/post/5caa00346fb9a05e677e8c52 在DigitalOcean玩Kubernetes(K8S)]<br />
<br />
=see also=<br />
[https://www.jianshu.com/p/c01ba5bd1359?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation 安装k8s Master高可用集群]<br />
<br />
[[category:k8s]]</div>
Evan