Docker volume explained

VolumesBind volume and Named volume
Containers are ephermal that means , if we delete the container files indiside of that container will delete too , to resolve this issue we need to know two different types of volumes in docker.
Bind volumesBind volumes maps folder inside your laptop to folder inside container.It's like two way mirror , that means whatever the changes you do on the folder that is there in your laptop that will reflect on folder on the container.useful for source , so container folder can get fresh code

Named volume A Named Volume is a storage area managed entirely by Docker.You don't know exactly where the files are on your laptop.

You just give the volume a name like db_data.Here docker will create a storage internally , then it assigins that storage element to the container , even if container deletes , still you can get the storage, so you can attach that storage to new container.Highly used for database..

Видео Docker volume explained канала Hemant Patil