24. Docker: Persistent and non persistent storage
##Storage Driver:
---------------
Provides temporary internal storage for containers.
Manages and controls how images and containers are stored on your Docker host.
##Docker Storage:
-----------------
Store and manage container data.
##Two types of storage:
-----------------------
1. Non Persistent
2. Persistent
##Non Persistent Storage:
Data resides within the container
Get deleted when container deleted
All container has it by default.
##Storage Drivers:
RHEL/Latest Ubuntu & CentOS uses Overlay2
Ubuntu 14 and older uses aufs
CentOS 7 and older uses devicemapper
Windows uses its own.
Storage Location:
Linux: / var /lib/docker/[STORAGE DRIVER
Windows: C: ProgramData Docker windowsfilter
Persistent Storage:
Data does not reside within the container
Does not get deleted when container deleted
Two types Persistent Storage:
1.Volumes:
Mounted to a directory in a container.
Storage Location:
Linux: / var /lib/docker/volumes
Windows: C: ProgramData Docker volumes
Supports 3 rd party drivers:
Block Storage e.g. Amazon AWS EBS.
File Storage e.g. Amazon AWS EFS.
Object Storage e.g. Amazon AWS S3.
2.Bind Mounts:
File or directory on the host system is mounted into a container’s file or directory.
Reference Doc :
https://docs.docker.com/storage/stora... storage driver
https://success.docker.com/article/co... matrix
https ://docs.docker.com/storage
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