How do we get something unique like pod id or container id in kubernetes deployment yamls

Question

我正在为服务设置kubernetes pod。需要使用永久卷来存储日志，证书等，这些卷应该在主机的某些子路径（例如service / log）上可用。现在我要创建此文件夹通过更改为service / log_podID或log_podName之类的值来唯一。如何在k8s部署Yamls中获取Pod名称或Pod ID。

Answer 1

Using something like this implies some kind of state which is contrary to the stateless nature of a Deployment . You could use the hostname within the container to have a unique ID, but that can't be used in the YAML.

If you need reliable IDs of your PODs you should use a StatefulSets ( documentation ) which bring predictable pod names which you could then use within your yaml.