Warning

title	Limitations

The IMAS environment is compiled in the container, so it uses only publicly available resources (+ source codes from git://git.iter.org)
This means that ifort, pgf90, nagfor or matlab are unavailable and these settings are used:
- IMAS_IFORT=no
- IMAS_G95=no
- IMAS_NAGFOR=no
- IMAS_PGI=no
- IMAS_MATLAB=no
- IMAS_MEX=no
These restrictions result from the requirements of the image building environment, namely:
- (1) either there is a Docker engine running as root
- (2) or there are user namespaces available
Running Docker engine as root is not an option in a multi-user environment such as the EUROfusion Gateway or ITER cluster
User namespaces is a feature of Linux kernel 3.8+ which allows isolating a process in a sandbox with the possibility of impersonating root user in the sandbox (however, the whole sandbox is run as a normal user so anything in the sandbox cannot truly escalate privileges)
Currently, we have neither (1) nor (2) on EUROfusion Gateway and ITER cluster. The image is built elsewhere and cannot make full use of available resources.
If user namespaces were configured on at least a single machine with IP in the pool of those enabled to use Intel license, then we would be able to build a full IMAS image

Buildah

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All parameters are placed in config file
By default, almost all of the parameters' values are blank, which means that the image builder will determine the latest released tag (for each component separately) and use it automatically
If you want to enforce a specific tag or branch, please edit the config file accordingly

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