diff --git a/home.md b/home.md
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+++ b/home.md
@@ -41,6 +41,7 @@ select Linux systems:
| [Debian/Ubuntu](/precompiled/debian) |
| [openSUSE](/precompiled/suse) |
| [CentOS/RedHat/Fedora](/precompiled/redhat) |
+| [Docker](/precompiled/docker) |
## [](#coding) Coding
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@@ -0,0 +1,3 @@
+
diff --git a/icons/docker.svg b/icons/docker.svg
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@@ -0,0 +1,3 @@
+
diff --git a/precompiled.md b/precompiled.md
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--- a/precompiled.md
+++ b/precompiled.md
@@ -15,6 +15,7 @@ the following:
| [Debian/Ubuntu](/precompiled/debian) |
| [openSUSE](/precompiled/suse) |
| [CentOS/RedHat/Fedora](/precompiled/redhat) |
+| [Docker](/precompiled/docker) |
Debian/Ubuntu and openSUSE generally receive first attention:
diff --git a/precompiled/docker.md b/precompiled/docker.md
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@@ -0,0 +1,148 @@
+
+
+[](/home)
+[](/precompiled)
+
+[[_TOC_]]
+
+
+
+## Precompiled packages - Docker
+
+OpenCFD Ltd. uses [Docker Hub](https://hub.docker.com/) to distribute
+pre-compiled versions of OpenFOAM for Linux, Mac OS X and Windows,
+including a complete development environment.
+
+Docker containers enable binaries compiled on a given Linux environment to
+be run on other platforms without any performance degradation. Docker also
+operates on Windows and Mac OS X wrapped in a light-weight Virtual Box.
+
+An image of OpenFOAM contains binaries and source code. The Docker environment provides:
+- A complete development environment to compile local modifications and create executables.
+- consistent behaviour of the OpenFOAM across all platforms
+
+Check if your (Linux or Windows or Mac OS X) system is supported by visiting
+https://docs.docker.com/engine/installation/
+
+
+### Installing Docker
+
+Docker is available in a Community Edition (CE) and an Enterprise Edition
+(EE). For installing and running the OpenFOAM image, the Community Edition is
+sufficient.
+Please see: https://docs.docker.com/engine/installation/
+
+### Installing and running OpenFOAM
+
+- Make sure the user is in the _docker_ group.
+ This can be checked with
+ ```
+ $ id
+ ```
+ The list of groups should include _docker_.
+- Make sure the Docker daemon is running:
+ ```
+ $ docker info
+ ```
+- Download the following scripts from the release instructions and put them
+ in a local directory (_eg_, your home directory)
+ - [installOpenFOAM][install-script]
+ - [startOpenFOAM][start-script]
+- Make both scripts executable:
+ ```
+ $ chmod +x installOpenFOAM
+ $ chmod +x startOpenFOAM
+ ```
+- Download and create the Docker container for OpenFOAM by executing the
+ first script:
+ ```
+ $ ./installOpenFOAM
+ ```
+ This only needs to be done once per login. The first invocation will
+ download the whole OpenFOAM installation so might take some time to finish.
+ Future invocations will only take a few seconds.
+- Start the Docker container with the second script:
+ ```
+ $ ./startOpenFOAM
+ ```
+- This will open a new shell with the OpenFOAM environment fully installed
+ and ready to use. For example,
+ ```
+ mkdir -p $FOAM_RUN
+ run
+ cp -p $FOAM_TUTORIALS/incompressible/icoFoam/cavity/cavity .
+ cd cavity
+ blockMesh
+ icoFoam
+ ```
+- All user files inside the Docker environment are available on the host inside
+ the home directory.
+
+
+## Frequently Asked Questions about Docker
+
+- Is there any performance degradation when running via Docker?
+ Docker should run as fast as natively compiled code.
+ On Windows and Mac OS X there may be a slight performance penalty
+ associated with I/O.
+- How do I check if the OpenFOAM image has been downloaded correctly?
+ Type the command
+ ```
+ $ docker images
+ ```
+ to show the images available in Docker environment. For example,
+ ```
+ REPOSITORY TAG IMAGE ID CREATED SIZE
+ openfoamplus/of_v2006_centos73 latest f37ab3b17c2d 2 months ago 2.98GB
+ ...
+ ```
+ If you receive an error message about not being able to contact the Docker
+ daemon check that:
+ - the Docker daemon is started at boot time
+ - the user account is in the _docker_ group (see output from the `id` command)
+- Where are my files?
+ The user files inside Docker are visible (_ie_, mounted) in your home area
+ and can be operated on just like any other file.
+- Why doesn't `paraFoam` display?
+ Make sure that your machine's software is fully up-to-date. See if you can
+ start a simple X-windows, non-graphics program (for example, `xterm`).
+ If this does not come up there may be a problem with the _xhost_ access to
+ the host screen. This is one of the steps inside the _startOpenFOAM_ script.
+ An alternative remedy is to install the native ParaView version for your
+ system, and use the built-in OpenFOAM reader and/or OpenFOAM data
+ conversion tools such as `foamToVTK`.
+- How do I run parallel?
+ Same as any other OpenFOAM installation, _e.g._: `mpirun -np 2 icoFoam -parallel`
+- How do I run parallel on multiple computers?
+ This is not trivial inside the Docker environment. Also you might want to
+ include optimised communication libraries (MPI) so it probably makes more
+ sense to [perform a native compilation](/building)
+- How do I compile code?
+ The Docker environment contains a full OpenFOAM development environment so
+ all `wmake`, `wclean` _etc._ commands work (it is running the actual
+ environment OpenFOAM was compiled in!)
+- What does installOpenFOAM do?
+ It downloads the OpenFOAM image from the Docker Hub and creates a
+ specialized container. This container
+ - mounts the home directory of the user with read/write access
+ - optionally channels the graphics
+ - sets up the OpenFOAM environment.
+
+- I still have questions...
+ The Docker route is being continually refined. It you have comments/tips
+ please mail them to: `docker (at) opencfd.co.uk`
+
+
+## About the image
+
+The current image was created from CentOS 7.3. If you wish to install any
+additional tool in your docker container, start it as usual via the
+_startOpenFOAM_ script, login as root with the password `ofuser2006` for the
+OpenFOAM-v2006 version and use _e.g._ `yum`.
+
+
+---
+Copyright (C) 2020 OpenCFD Ltd.
+
+[install-script]: https://sourceforge.net/projects/openfoam/files/v2006/installOpenFOAM
+[start-script]: https://sourceforge.net/projects/openfoam/files/v2006/startOpenFOAM