We have just discussed decided darker components as the doctor client and Doc Sara and you able to get
information about dose components using darker version of command and basically now you know that the
doc or Celera is set off processes like Doc or Damon container D.
Ron C and dr.
Indeed.
And again if you go back to time and know and and or Dr. Morrison you'll see information about those
processes here.
But no question where those processes are Iranian they are running at Dr. Holst but what is Dr. host.
Let me go back to this diagram.
If you install Docker engine directly on Linux computer then this Linux machine is Docker host and all
processes of Docker engine are actually running at this Docker host at this Linux machine if you are
running a Mac OS or windows.
Then as I have told you before you'll install tiny Linux your dole machine on top of Mac OS or Windows
computer and this Linux of your Dell machine will be actually Docker host and inside of this dock our
host will be running the same processes as the Doctor D.
Ron C and so on and all containers will be created inside of these Docker host Linux of your Dell machine
and the doors processes that are running inside of the dock our server communicate very tightly with
Docker host for example processes create the new networks a docker host.
Let me demonstrate to that.
Let me first switch to a wound to your time machine.
This one where Docker was already installed and looked me type command if conflict like this and I'll
see here site network interface as Docker zero and its IP address is one hundred seventy two seventeen
oh one if you have followed me along in the previous chapter when we have used a different Docker images
then you could remember this IP address it is actually default gateway for all containers that are created
in default breach network if you don't understand what I'm talking about right now we will get back
to Docker networking a bit later but no I'll explain that you just concepts again at this computer want
a computer there is new network interface gold Docker all zero and it has this IP address and all containers
that will be created on this host Docker host we'll communicate with these IP orders as default gateway
and go to Internet via eat for example.
Let me quickly create the busy box container Docker Iran that's a deep busy box and here unable to find
images the box latest locally let's wait to beat it we'll download the music box image from our hub
OK.
Image was loaded and here I could enter a command post name this I and IOC IP address assigned to this
container and noticed that this IP address is from the same network as this IP address IP address of
Docker zero interface on this one to computer and this actually proves that this Linux computer is Docker
host all right let me know go back to this computer Marcus computer and go to a terminal here and let
me clear it first and type if config and here in this output I will not see Docker zero interface doesn't
because this Marcos computer is not Dr. Holst instead tiny doodle machine Linux your dollar machine.
Yes.
Dr. Holst but now you may ask me a question how we are able to get access to Dr. Holst on Mac OS or
Windows computer.
Let me demonstrate you that quickly.
Let me clear timing though.
And here in the history I have such kind of comment no I will not explain what this command does.
But was this command you are able to get access to this new audio machine that acts actually as Dr.
host.
Let me press enter.
And now I am inside of this building machine.
Let me type if config command and here in this output I'll see Docker zero interface same interface
as I have seen here on this computer.
We save IP address one hundred seventy two 17 0 1.
And that means that the docker host on Mac OS and Windows computers use actually Linux built a machine
where all containers are created.
That is Docker host and inside of these Docker host all processes like container D run C and took a
demon running Wonderful.
That's what is our host.
And now you should understand actually what is the difference between Mac and Windows and Linux computers
where Docker engine is installed.
Let's not proceed.
And next let me talk about Docker image and docker container.
I'll see you next by my.