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Jarek Hartman

Jarek Hartman

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Jarek Hartman

Proxmox monitoring

Jarek 2023-12-192024-01-14 Telco and IT 1 Comment

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

  1. Proxmox Server 8.1.3

Host

Collecting script is running every minute on the pve host

* * * * * 
…
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Proxmox Cloud-Init

Jarek 2023-08-242023-08-24 Telco and IT No Comments
  • 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

…
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TrainerRoad workouts in your Garmin Watch

Jarek 2023-01-112024-03-10 Cycling, Gadgets & hobbies No Comments

Background

TrainingRegime is a small ConnectIQ Widget for Garmin Smart Watches allows you to check your TrainerRoad workout.

Navigation

After installation should be visible in your Widgets carousel. Single tap to enable an option to swipe up or down for …

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Convert Diameter msg hex string to Wireshark pcap

Jarek 2022-12-062022-12-06 Telco and IT No Comments

A “raw” hex string can be converted into Wireshark pcap:

query="<hex string here>"

export FILE="$HOME/Downloads/capture"

echo -n "${query}" > "${FILE}.bin.txt"

xxd -r -p "${FILE}.bin.txt" | od -Ax -tx1 > "${FILE}.hex.txt"

/Users/jhartman/Tools/Utilities/Wireshark.app/Contents/MacOS/text2pcap -o none -E wireshark-upper-pdu -P diameter -F pcap "${FILE}.hex.txt" 
…
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Live Wireshark diameter capturing from K8s container (in Google Kubernetes Engine)

Jarek 2022-04-252022-04-25 Telco and IT No Comments

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 
…
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