January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Container volume life cycle
In order to understand Kubernetes' volume management, you'll need to understand the Docker volume life cycle. The following example is how Docker behaves with a volume when a container restarts:
//run CentOS Container$ docker run -it centos# lsanaconda-post.log dev home lib64 media opt root sbin sys usrbin etc lib lost+found mnt proc run srv tmp var //create one file (/I_WAS_HERE) at root directory# touch /I_WAS_HERE# ls /I_WAS_HERE bin etc lib lost+found mnt proc run srv tmp varanaconda-post.log dev home lib64 media opt root sbin sys usr //Exit container# exitexit//re-run CentOS Container# docker run -it centos //previous file (/I_WAS_HERE) was disappeared# ls /anaconda-post.log dev home lib64 media opt root ...
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