Why Docker isn't always a good idea Part 1

To briefly explain the situation: We have a HAProxy running on a Debian server as a Docker container. This is the entrance node to a Docker Swarm cluster. Now, in the last few days, there have been several small outages of the websites running in the Docker Swarm cluster. After getting an overview, we noticed that no new connections can be established. As soon as we restarted the HAProxy, everything went back to normal....

September 15, 2022 · 2 min · Alex Wellnitz

Backup MySQL Databases in Kubernetes

In this post, we will show you how to create a MySQL server backup using Kubernetes CronJobs. In our case, we do not have a managed MySQL server. But we want to backup it to our NAS, so that we have a backup in case of emergency. For this we first build a container that can execute our tasks, because we will certainly need several tasks to backup our cluster....

March 3, 2021 · 2 min · Alex Wellnitz