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O'Reilly Platform
book
Kubernetes即学即用(第二版)
by
Brendan Burns
,
Joe Beda
,
Kelsey Hightower
June 2021
Intermediate to advanced
300 pages
5h 4m
Chinese
China Electric Power Press Ltd.
Content preview from
Kubernetes即学即用(第二版)
部署实际应用程序
|
253
name: redis-config
name: config
- emptyDir:
name: data
volumeMounts:
- mountPath: /redis-config
name: config
- mountPath: /redis-data
name: data
- command: [sh, -c, source /redis-config/sentinel.sh]
image: redis:3.2.7-alpine
name: sentinel
volumeMounts:
- mountPath: /redis-config
name: config
你可以看到这个
Pod
中有两个容器。一个运行我们创建的
init.sh
脚本和
Redis
主服务器,另一个运行监视服务器的
redis-sentinel
。
此外,这个
Pod
中还定义了两个卷。一个卷使用我们的
ConfigMap
来配置两
个
Redis
应用程序,另一个卷是简单的
emptyDir
卷,映射到
Redis
服务器的
容器中,负责保存应用程序的数据,保证容器重启时数据不会丢失。如果你
想要更可靠的
Redis
安装,则可以采用网络存储,请参见第
15
章的讨论。
到此为止,
Redis
集群已经定义好了,下面我们通过以下命令来创建它:
$
kubectl apply -f ...
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Publisher Resources
ISBN: 9787519856762