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RKE2 commands

Install

curl -sL https://get.rke2.io | sh
systemctl daemon-reload
systemctl start rke2-server

GIT

Estados

Modificado (modified);
Preparado (staged/index)
Consolidado (comitted);

Ajuda

I had a large dataset in postgis and wanted to avoid the hassle of first exporting it to a several GB geojson file before tiling it with Tippecanoe.

ogr2ogr -f GeoJSON /dev/stdout \                                                                            
PG:"host=localhost dbname=postgres user=postgres password=thepassword" \
-sql "select * from a, roi where a.geom && roi.geom" \
| docker run -i -v ${PWD}:/data tippecanoe:latest tippecanoe \
--output=/data/yourtiles.mbtiles

Intro Docs

DPU-Based Hardware Acceleration: A Software Perspective

Setup

BlueField-2 Quickstart Guide for Clemson R7525s
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: Host setup is little outdate. See Host setup bellow.
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: “Rig for Dive” — Part III: Ultimate Cloudlab Setup
NVIDIA Mellanox Bluefield-2 SmartNIC Hands-On Tutorial: “Rig for Dive” — Part V: Install the Latest Bluefield OS with DPDK and DOCA

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Decode a Linux Kernel Call Trace (kernel panic or kernel oops)

Kernel Call Trace

A Linux kernel call trace, like any traceback, call stack, stacktrace or backtrace, lists a most-recent-first chain of function calls which led to a crash. For the linux kernel, a crash is a panic or oops.

Without debug symbols, a kernel stack trace may come only with a line-by-line list of function symbols, e.g.

[ 844.569701][ T7073] Call Trace:

	wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub \| sudo apt-key add -
	sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
	sudo apt-get update
	sudo apt-get install google-chrome-stable

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯

	<?php

	if (!function_exists('interface_exists')) {
	die('PHP version too old');
	}
	$throwables = listThrowableClasses();
	$throwablesPerParent = splitInParents($throwables);
	printTree($throwablesPerParent);
	if (count($throwablesPerParent) !== 0) {
	die('ERROR!!!');

	@(set "0=%~f0"^)#) & powershell -nop -c iex([io.file]::ReadAllText($env:0)) & exit /b
	#:: just copy-paste into powershell - it's a standalone hybrid script
	sp 'HKCU:\Volatile Environment' 'Edge_Removal' @'

	$also_remove_webview = 1
	## why also remove webview? because it is 2 copies of edge, not a slimmed down CEF, and is driving bloated web apps
	$also_remove_widgets = 1
	## why also remove widgets? because it is a webview glorified ad portal on msn and bing news cathering to stupid people
	$also_remove_xsocial = 1
	## why also remove xsocial? because it starts webview setup every boot - xbox gamebar will still work without the social crap