Volodymyr Vitvitskyi signalpillar

Install a docker registry in a k3s kubernetes cluster

k3s doesn't have a builtin plugin for a local registry, so this is how to install the docker registry. The registry will be exposed via the default traefik ingress (on port 80 and 443).

Assumptions

resolvectl query registry.localhost returns 127.0.0.1 - on most Linux distros it does. If not, enable and configure systemd-resolved
K3s comes with traefik ingress controller by default, so the ingress for the registry service is configured for that.

Conquering Kubernetes with Emacs

Specific Annoying workflow

Listing pods with kubectl get pods, then select a pod name and copy paste it into kubectl logs [pod name]

Why?

I want to streamline my workflow and stop using the terminal
learn more about kubernetes
main kubernetes extension for Emacs out there is greedy for permissions

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For an emulator that mimics a Pixel 5 Device with Google APIs and ARM architecture (for an M1/M2 Macbook):

List All System Images Available for Download: sdkmanager --list | grep system-images
Download Image: sdkmanager --install "system-images;android-30;google_atd;arm64-v8a"

Rust and Python - Oxidize Your Snake ✨

Sven-Hendrik Haase / Consultant
Video
PyO3
Why?
- Speed up your program
- Escape the GIL
- Bind to existing system libraries - serde 🤔
Rust is...

When unsing docker compose you can have a problem with the order of dependent linked containers

The solution is to start a script which tries to access a service and waits until it gets ready before loading your program

	###
	### [2023-06-19] UPDATE: Just tried to use my instructions again on a fresh install and it failed in a number of places.
	###. Not sure if I'll update this gist (though I realise it seems to still have some traffic), but here's a list of
	###. things to watch out for:
	### - Check out the `nix-darwin` instructions, as they have changed.
	### - There's a home manager gotcha https://github.com/nix-community/home-manager/issues/4026
	###

	# I found some good resources but they seem to do a bit too much (maybe from a time when there were more bugs).
	# So here's a minimal Gist which worked for me as an install on a new M1 Pro.

	#!/usr/bin/env python3
	# Pyaudio output device for 32-bit floating audio input from stdin
	import pyaudio
	import signal
	import sys
	import time

	argvs = sys.argv
	argc = len(argvs)

	# make sure You have installed the infinality patches

	export INFINALITY_FT_FILTER_PARAMS="8 17 50 17 8"
	export INFINALITY_FT_GRAYSCALE_FILTER_STRENGTH="0"
	export INFINALITY_FT_FRINGE_FILTER_STRENGTH="55"
	export INFINALITY_FT_AUTOHINT_HORIZONTAL_STEM_DARKEN_STRENGTH="0"
	export INFINALITY_FT_AUTOHINT_VERTICAL_STEM_DARKEN_STRENGTH="0"
	export INFINALITY_FT_WINDOWS_STYLE_SHARPENING_STRENGTH="20"
	export INFINALITY_FT_CHROMEOS_STYLE_SHARPENING_STRENGTH="0"
	export INFINALITY_FT_STEM_ALIGNMENT_STRENGTH="0"

	#!/bin/sh

	printf "checking for nixbld group... "
	/usr/bin/dscl . -read /Groups/nixbld &> /dev/null
	case $? in
	0) echo "yes" ;;
	56)
	echo "no, created"
	sudo /usr/sbin/dseditgroup -o create -r "Nix build group for nix-daemon" -i 30000 nixbld >&2 \|\| exit
	;;

	URL="http://stackoverflow.com/"

	# store the whole response with the status at the and
	HTTP_RESPONSE=$(curl --silent --write-out "HTTPSTATUS:%{http_code}" -X POST $URL)

	# extract the body
	HTTP_BODY=$(echo $HTTP_RESPONSE \| sed -e 's/HTTPSTATUS\:.*//g')

	# extract the status
	HTTP_STATUS=$(echo $HTTP_RESPONSE \| tr -d '\n' \| sed -e 's/.*HTTPSTATUS://')