Pod Volume
同一个Pod中的多个容器可以共享Pod级别的存储卷Volume,Volume可以定义为各种类型,多个容器各自进行挂载,将Pod的Volume挂载为容器内部需要的目录。
例如:Pod级别的Volume:”app-logs”,用于tomcat向其中写日志文件,busybox读日志文件。
pod-volumes-applogs.yaml
apiVersion: v1
kind: Pod
metadata:
name: volume-pod
spec:
containers:
- name: tomcat
image: tomcat
ports:
- containerPort: 8080
volumeMounts:
- name: app-logs
mountPath: /usr/local/tomcat/logs
- name: busybox
image: busybox
command: ["sh","-c","tailf /logs/catalina*.log"]
volumeMounts:
- name: app-logs
mountPath: /logs
volumes:
- name: app-logs
emptuDir: {}
查看日志
- kubectl logs
<pod_name>
-c<container_name>
- kubectl exec -it
<pod_name>
-c<container_name>
– tail /usr/local/tomcat/logs/catalina.xx.log
参考文章
- 《Kubernetes权威指南》