Blog
ENNotizen aus laufenden Projekten: Kubernetes, Symfony und der Betrieb dazwischen.
2 TB Out of S3 Glacier Deep Archive for $15 a Month
Storing 2 TB of backups cost me $20 a year. Getting them back out was supposed to cost as much as a new hard drive. It did not.
15 hours of downtime: the graphics card did it
Fifteen hours of downtime, caused by a graphics card that does not physically exist. A `reboot` over SSH left PID 1 wedged behind an emulated device on a server that has never had a monitor. The diagnosis, the rescue without a hard reset, and the one line in GRUB that stops a repeat.
Installing Mastodon 4.6 on Kubernetes
A complete guide for your own instance: Postgres 18 through an operator instead of a Deployment, Valkey 9 with persistence, Sidekiq with an autoscaler, Envoy Gateway instead of the retired ingress-nginx, sealed secrets and backups with point in time recovery. Second attempt, this time with the lesso
Audit evidence on AWS: logs are not proof
Almost every cloud environment logs plenty. Preparing for an ISO 27001 audit still tends to stall on the same question: can you prove this log is complete and unaltered?