Home Lab 2024
New hardware
My lab before 2024 refreshment consisted of three nodes:
- AMD Ryzen 9 3900XT 12-Core @ 3.8GHz, 128 GB RAM
- i7-7700 4-Core @ 3.60GHz, 64 GB RAM
- 1st gen Raspberry-Pi (as a Proxmox arbitrer node)
2nd node based on …
Proxmox monitoring
A toolset to gather temperature and power consumption metrics then collect in Prometheus. Can be found on GitHub https://github.com/jaroslawhartman/proxmox-monitoring/tree/main
Architecture
Components
- Proxmox Server 8.1.3
Host
Collecting script is running every minute on the pve host
* * * * * Proxmox Cloud-Init
- Custom Cloud-Init configuration
As stated in Proxmox Doc, you can create a custom Cloud-Init config where you’re free to set all parameters you need in a snippet yaml file, then generate a Cloud-Init custom image
This file is static
Live Wireshark diameter capturing from K8s container (in Google Kubernetes Engine)
Handy command to remotely capture tcpdump from a K8s container located in Google Kubernetes Engine and then display it (live!) in Wireshark running on your PC:
% gcloud beta compute ssh jumphost --quiet --command='kubectl exec tra-rt-ag1-0 --namespace=app-ns -- sudo /usr/sbin/tcpdump OUI issue NGINST-64002: Error occurred in validation of: “Host Name”
When installing an Oracle application using OUI (Oracle Universal Installer) sometimes it verifies if a given host is reachable.
Unfortunately, in my case, it was always failing:
All this despite the host was perfectly reachable using Ping:
So what was …