If you are curious to learn more, read on. Understanding these scripts will enable you to modify them according to your needs.

But how and when does the mapping of username, password, or permissions happen? And how does it become possible to access your simulation data if created in an isolated environment? It all happens with the execution of two short scripts. Still, with the OpenFOAM-plus workflow, the OpenFOAM container integrates seamlessly into your system, and you can run simulations just as well as with the native installation. To work in a Docker container feels a bit like working on a remote server, with the difference being only that this remote server is an isolated fraction of your workstation. – learn more), but it doesn’t depend on or interact with any other applications, libraries, or configuration files of the host. Isolation means that Docker only uses few core components of the host system’s Linux kernel (Cgroups, Namespaces, etc. You may be wondering why this should be a big deal?! Well, Docker is great for creating standardized, isolated, and minimalistic environments.

There is also a fully-fledged version of paraFoam available. And there is more: in the isolated container environment, you still have the same username as on the Linux host and use the same credentials to run sudo commands. Afterward, you were magically presented with a running OpenFOAM installation without having had to worry about any dependencies besides Docker. If you followed the installation instructions provided on the ESI OpenFOAM website, you installed Docker and executed two scripts, namely installOpenFOAM, and startOpenFOAM. You can run your app in the cloud, or you can share it quickly with a co-worker who uses a different OS, or you can conserve a solver and it will be still runnable in five years from now and it will still give the exact same results. This flexibility makes your app executable even if you do not know the hardware or operating system (OS) it is going to run on.An image contains the software itself and all its dependencies, which is why you can share and run your app (almost) without limit.Docker allows creating isolated, standardized software images.If you are not in the mood to read another article, here is why you should care about Docker in a nutshell: In case you have never heard of Docker, and you are wondering why you should bother to use it, Robin Knowles from CFD Engine wrote a fantastic article entitled The complete guide to Docker & OpenFOAM, which I really recommend to read before continuing with this post. The quickest way to get a running OpenFOAM installation on any Linux distribution (or even Mac and Windows) is probably via a Docker image. ways to ship your OpenFOAM/solvers/utilities using Docker.what the startOpenFOAM script does, and.

Openfoam with docker for mac