Your first (Windows) docker container - Hello World

Today I would like to show you how to get your first docker container running, what problems I had to fight with to bring it up and what commands you might need...

At first I thought the whole thing is very simple.
A small one-liner and we are at the goal....

# Running your first docker container -> "Hello World"
docker run hello-world

So there is a problem with the container, cause it doesn't match the hostoperatingsystem....

Apparently, the image for "hello-world" expects an operating system based on Linux.

As a result I try to built something here by my own.

Pulling down a windows based image...

# Pulling down an image
docker pull mcr.microsoft.com/windows/nanoserver:1903

Showing downloaded / created / installed images...

# Listing all downloaded / created / installed images
docker images
# or
docker image ls
# or 
docker images -a

Removing unneeded images....

# Removing images
docker rmi <IMAGE ID>
docker rmi 01ede58bc7b8

# Forcing to remove images
docker rmi 01ede58bc7b8 -f

Running the Container...

# Trying to run the container and connect there interactively
docker run -it mcr.microsoft.com/windows/nanoserver:1903 cmd.exe

Curiously, there is also a compatibility problem here, although the image is windows based.

Trying to get a different windows container based on server core up an running.

# Pulling down an different image
docker pull mcr.microsoft.com/windows/servercore:ltsc2019
# Trying to run the container
docker run -it mcr.microsoft.com/windows/servercore:ltsc2019 cmd.exe

Unfortunately, this again results in the same error....

I have just determined which Windows version I use exactly.

# Start cmd
cmd
ver

Trying to get a different windows container based on server core  (which has been identified before) up an running.

Pulling down again...

# Pulling down an image
docker pull mcr.microsoft.com/windows/nanoserver:1903

# Pulling down an different image
docker pull mcr.microsoft.com/windows/servercore:10.0.19041.264
# Tagging the image
docker tag mcr.microsoft.com/windows/servercore:10.0.19041.264 microsoft/windowsservercore

Running the Container....

# Trying to run the container and connect there interactively
docker run -it microsoft/windowsservercore cmd.exe

That has now worked. So it is very important that the container matches the host system.

Listing all Containers....

# Showing all Container and the related status
docker ps -a

Creating a custom image...

Creating a new image from the running modified container
docker commit <containerid> helloworld

Showing downloaded / created / installed images again...

# Listing all installed / created / downloaded images
docker images

Removing unneeded containers...

# Removing a running container
docker rm 23933d090f26

Running the new image in a new container...

# Running the newly created image
docker run --rm helloworld cmd.exe /s /c type Hello.txt

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