容器的设计模式

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Distributed System Patterns

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https://www.usenix.org/sites/default/files/conference/protected-files/hotcloud16_slides_burns.pdf

例子：

1. 实现一个sidebar模式的pod：

initContainers是一个sidebar的容器，会首先启动

apiVersion: v1
kind: Pod
metadata:
name: javaweb-2
spec:
initContainers:
- image: geektime/sample:v2
  name: war
  command: ["cp", "/sample.war", "/app"]
  volumeMounts:
  - mountPath: /app
    name: app-volume
containers:
- image: geektime/tomcat:7.0
  name: tomcat
  command: ["sh","-c","/root/apache-tomcat-7.0.42-v2/bin/start.sh"]
  volumeMounts:
  - mountPath: /root/apache-tomcat-7.0.42-v2/webapps
    name: app-volume
  ports:
  - containerPort: 8080
    hostPort: 8001 
volumes:
- name: app-volume
  emptyDir: {}