A little bit before COVID time, I had to do some work in Eindhoven on the University Campus. While I was walking between two locations I frequently had to visit, I saw this sign. I couldn’t resist the urge and made the sign a little bit more literal 🙂
Gert-Jan
Restarting vm/containers if they get swapped out
It is quite easy to over demand on the capabilities of you machine when you’re running proxmox. The most claimed resource is definately memory. If you’re really squeezing every bit of memory out of your machine, you will encounter the situation that a vm will be swapped out. So you suddenly see that your host…Read more
Ntfy notifications
Ntfy.sh is a website that offers a notification service. The fun part of this is that they also give you the possibility to self host your own ntfy server. So I’ve spun one up in Docker: Similar to my other docker containers: After the stack is running in portainer, you will have a ntfy server…Read more
Reverse proxy (Traefik) with docker
A lot of docker containers provide a webUI. Nowadays if you want to access a webUI you either have to click through some certificate exceptions or you need so setup SSL certificates. Often the last thing is too cumbersome so a lot of people will just muddle through clicking on the exceptions. There is a…Read more
Vyos with BGP and vrf
I’ve setup a vyos instance to communicate BGP to the upstream routers and using vrf’s to isolate the BGP from the management part. Config VRF This just creates 2 vrf’s. One for the BGP sessions and one for Management. This way from the Internet side only BGP is exposed and nothing else. All the management…Read more
Passing your GPU to a docker container in a proxmox environment
This is the first post of a few all related to getting started on AI yourself. When using AI a GPU very quickly will be something you want to incorporate in your setup. This means impacts though the way you configure everything regarding hardware and software. This example will assume that the physical server (with…Read more
Committing vyos config to gitlab (while using vrf’s)
It took me quite some time to get this working. When looking at the configs found on the internet I found several seperate individual configs, but nothing to combine the following: This post will describe how to get the combination of both working with a minimum of special settings. Setting up separate vrf’s In my…Read more
Oh it is so obvious
Docker is really the new way for me to deploy applications. And this really is an easy way. You look for a docker-compose file, tweak the standard stuff like volumes, IP address and reverse proxy settings and presto! you’re done. Recently though some of my docker containers started failing… even ones that have been running…Read more
Private Cinema
Today we went to a private cinema. We had a room that can hold 5 people. Huge reclinable chairs. We watched Mission Impossible: Dead Reckoning. The room has 2 chairs in the first row and 3 chairs in the back row. There are no other rows! During the movie you can order food and drinks…Read more
Docker DNS deadlock (with ipvlan l2 and addguard dns container)
I stumbled on an interesting issue, that I think is worth mentioning. Behaviour I had problems with traefik getting the certificates from let’s Encrypt. I knew it worked before, but I didn’t have a clue why it suddenly didn’t work. Investigation The first investigation focused of course on traefik. After examining the logs I saw…Read more