Install etcd cluster needed to store state of Kubernetes components
Setup certificate authorities for etcd and Kubernetes plus certificates needed for Kubernetes components
Install secure, private network for Kubernetes hosts with WireGuard
Prepare/configure Ansible, install firewall, harden instances, kernel settings
Ansible introduction and setup hosts for Kubernetes
The other day I wanted to start my Vivaldi web browser. But the only thing I got was a error message: kernel: vivaldi-bin: segfault at 288 ip 000055575d16ee58 sp 00007ffc1a539300 error 4 in vivaldi-bin[555759471000+6890000] Aha… “Very good”. The only thing I did a day before was upgrading Vivaldi but only a bugfix release. Googling around didn’t help very much. At least I now knew that I was not the only one with this problem.