After successfully upgradingUpgade #Thumbor to from [[ https://www.debian.org/releases/stretch/ | Debian stretch ]], we can proceed with the upgrade to [[ https://www.debian.org/releases/buster/ | Debian buster to [[ https://www.debian.org/releases/buster/ | Debian buster ]], accoding to [[ https://wikitech.wikimedia.org/wiki/Operating_system_upgrade_policy | Operating system upgrade policy]].
Things to consider:
* svg * #Wikimedia-svg-renderingg (e.g. T40010 )
Repackage/rebuild for buster
[] 3d2png (or create a package)
[] python-libthumbor
[] python-thumbor-community-core
[] python-thumbor-wikimedia
[] Thumbor
Optional/Related tasks:
[] T212941 Investigate systemd hardening to replace Firejail for Thumbor
[] T212946 Stream Thumbor logs to logstash
[] T187765 Replace the Nginx fronting Thumbor with a reverse proxy capable of queuing requests