This (short) talk will present the community involvement of me and members of Linux team. It presents a quick reminder of our client platform in Munich and then focus on the ways we are interacting with the various communities providing the upstream software of our client.

1. Linux clients in the City of Munich
Scaling to / managing 18.000 linux clients
Speaker: Jan-Marek Glogowski – Linux Client Team
Open Source Summit Paris 2016, Paris, 24. November 2016

2. 2Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Some constraints
● OSS on the server – that‘s most time quite solid
● Server side has large rollouts (Internet anyone…)
● We use a „VMware cloud“ + RedHat servers (and a lot other)

3. 3Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Tech facts – LiMux release
● Current Release: 5.5
freezed in DAK @ 2016-08-03 (i386)
● Based on Kubuntu 14.04 with KDE 4.14 from PPA
● Firefox and Thunderbird ESR (patched for KDE4)
● LibreOffice 4.1+ (plus = 300+ patches) + WollMux
● GOsa², FAI, Client and user configuration framework
262 changed source packages (patched or backports)
5202 binary packages (not all installed)
Plan: amd64 preview in Q1 2017
KDE5 based 18.04 + LO 5.x in Q3 2018

4. 4Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Tech facts – Client management
● GOsa² – LDAP management tool (github: credativ/limux-gosa)
Manages host and user configuration and triggers installations
● FAI (github: lhm-limux/fai)
Fully Automated Installation based on GOsa² LDAP data
● Client and user configuration management infrastructure
● application preconfiguration, KDE menu generation, host
settings, FAI integration, network share mounting (CIFS,
Novell), printers, sudoers, roaming profile sync, Xorg
configuration, USB storage devices
● Finally (almost) completely Python 2 based
● Reads / caches configuration from GOsa² managed LDAP
● Please poke city to release sources as Free Software!

5. 5Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Not Big Cities but big deployments
● A lot of specialized software (200+ programs AFAIK)? … getting
married, register a car, managing taxes for dogs, ...
● Windows + Cytrix terminal servers (AutoCAD, where BriksCAD is
not good enough), seldomly WINE (no shareable)
● Fat client software is more prone to scaling based bugs the server
software (KDE PIM currently doesn‘t scale and conflicts with the
way we use roaming profiles)
● LibreOffice breaks as much as MS Office for new versions (the
community improves the test coverage for every release)

6. 6Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Further information and contact
email: limux@muenchen.de
Or even visit us!

7. 6Linux clients in the City of Munich · Jan-Marek Glogowski · 24. November 2016
Further information and contact
email: limux@muenchen.de
Or even visit us!