| Issue |
EPJ Web Conf.
Volume 337, 2025
27th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2024)
|
|
|---|---|---|
| Article Number | 01111 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/epjconf/202533701111 | |
| Published online | 07 October 2025 | |
https://doi.org/10.1051/epjconf/202533701111
A modular approach to software in ATLAS: Microservices framework and configuration database for ATLAS ITk
University of Wuppertal, Gaußstraße 20, 42119 Wuppertal
* e-mail: jonas.schmeing@cern.ch
** e-mail: gbrandt@cern.ch
*** e-mail: wolfgang.wagner@cern.ch
Published online: 7 October 2025
To operate ATLAS ITk system tests and later the final detector, a graphical operation and configuration system is needed. For this, a flexible and scalable framework based on distributed microservices has been introduced. Different microservices are responsible for configuration or operation of all parts of the readout chain. The configuration database microservice provides the configuration files needed to configure the hardware components of the readout chain and perform scans using the DAQ software. It saves the connectivity information and configuration files for the system’s operation in so-called runkeys. These runkeys are stored in a flexible, tree-like data structure. This flexible structure allows the storage of specialized runkeys made up of different objects for each of the ITk subdetectors within the same database. It is investigated whether a single-instance database is sufficient to efficiently serve these files to the subdetectors or if a distributed system of local ConfigDB caches is needed. These caches would each provide only a subset of the runkeys depending on the elements of the readout chain that the specific cache serves.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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