Doctor in which you use the simple set of filesystem layers or in simple words set of files you're not
able to modify those files.
You are able to only read them if you want to create a new image based on other image you could of course
do that and add additional file system layers or additional files on top of existing doctor image but
the doctor images are actually used for creation of containers.
And picture is like this from single doctor in which you are able to create multiple containers and
gain a quantity of containers that you could create from the same image depends only on the amount of
resources you have on your Doctor Holst.
That's all.
All right let me quickly demonstrate you how you are able to create containers from a specific doctor
image.
For that you could use command doctor run and let me quickly create a container based on Bizzy books.
Doctor image Dr Ron busy box and here at desk idea options and new container was created.
I am inside of it and if I'll have a look at the containers that are currently running using Dr. P S
command you'll see that there is no single Busy Box container.
I could create one more container using same command dock around this busy box and let me run it in
the ground as well like this.
And if I at least container is now I'll see two different containers that are running at the moment
but image is the same.
It is busy box and that proves that you are able to create multiple containers from the same image and
actually every container has so-called riots all layer.
And that means that now you are able to modify container that does the training.
For example you are able to create new file inside of the container.
Let me do that here in this busy box container.
Deitch file the DST and if I list files now here you will see file to the extent on the list and again
does because containers are right.
You are able to create and modify all files inside of container great.
That's what is container.
In short worlds and next.
Let me explain you.
What is a docker registry and what does dock a repository.
I'll see you in the next lecture.
Bye bye.