This is an attempt to publish the work behind this internet article:

http://www.simxon.com/articles/20190614-wsl2-and-still-waiting.html

The key file is the script "sxforms1.bash" (SimXonFORMicroSoft). It has been designed
to mimic the German concept of an "Eierlegende Wollmilchsau" in that it may be invoked

1) under a modern Ubuntu (18.04 LTS) with only a minimal feature set (such as
   http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/mini.iso)
2) under Docker running the same kind of a minimal Ubuntu
3) under "Windows Subsystem for Linux, version 2"

, in which cases the script will itself detect its environment.

The script is shipped with these settings:

skipopenfoam=0
openfoamonly=0

, under which circumstances it will both load the computer with the necessary
prerequisite software for OpenFOAM, run OpenFOAM and terminate with some diagnostic
messages.

While Docker is setup, "sxforms1.bash" will prompt for time zone information, a password
for user "user" and additional information. Concerning the latter, hitting <Enter>
six times will do.

The folder "collection2" and the files "ahmeda_2.tgz", "build2u.tgz" and "envedit.py"
are needed for the OpenFOAM sequence of Computer Aided Engineering (CAE) jobs.

The scripts "dockerrun.bash" and "dockerrun.bat" are used when running under Docker.
Note the necessity of the switch "--cap-add=SYS_PTRACE". Also note that you may need
to log user "user" out and in again before being allowed to run Docker.

The file "sxforms1_reference.lis" is a reference output file which may be useful for
debugging purposes.

Kim Ravn-Jensen, Simxon, June 18, 2019

CAUTION: DO NOT SPECIFY A HOSTNAME OF 12 CHARACTERS - DO DEFINE A USER NAMED "user"!