Rafisto

How to easily setup PXE boot for cluster provisioning

This guide will show you how to setup a PXE boot server to provision a cluster of machines. For the sake of this guide, we will be using system agnostic docker containers to simulate the DHCP and the PXE boot server.

Featured technologies:

• netbootxyz
• networkboot/dhcpd

PXE boot description

spipm

#!/bin/bash

# Run PXE boot server on interface
#   Seems to work with UEFI and Secureboot
#   Spip, 2023
#
# Most stuff from https://www.youtube.com/watch?v=E_OlsA1hF4k
#

# Check args

lafentres

#!/bin/bash

# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original
# script that this one is based on. This script modifies the original to create the all-the-way-down effect.

# Generate a `:*-all-the-way-down:` Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/

set -euo pipefail

smith

{
  "type": "object",
  "required": ["name", "description", "identity", "trigraphs"],
  "description": "JSON schema for https://spellcaster.sh",
  "properties": {
    "name": {
      "type": "string",
      "description": "represents an intent, desired state, or outcome."
    },
    "description": {

lafentres

#!/bin/bash

# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original 
# script that this one is based on. This script modifies the original to create the jumbo. 

# Generate a jumbo Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/

set -euo pipefail

lafentres

#!/bin/bash

# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original 
# script that this one is based on. This script modifies the original to create the party effect. 

# Generate a `:*-party:` Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/

set -euo pipefail

shawwn

This was a response to a Hacker News comment asking me what I've been up to since 2010. I'm posting it here since HN rejects it with "that comment is too long." I suppose that's fair, since this ended up being something of an autobiography.

--

What happened after 2010?

raysan5

CUSTOM GAME ENGINES: A Small Study

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) because d

jescholl

# This one-liner will allow devices on the local network to from netboot.xyz
# without making any changes to existing dhcp server(s).

docker run --rm --cap-add=NET_ADMIN --net=host --init quay.io/coreos/dnsmasq \
  -d -q --dhcp-range=192.168.200.1,proxy,255.255.255.0 \
  --enable-tftp --tftp-root=/var/lib/tftpboot \
  --dhcp-userclass=set:ipxe,iPXE \
  --pxe-service='tag:!ipxe,x86PC,"PXE chainload to iPXE",undionly.kpxe' \
  --pxe-service=tag:ipxe,x86PC,"iPXE",http://boot.netboot.xyz \
  -p 0 --log-queries --log-dhcp

akiatoji

OSRM North America route server on EC2

Overview

OSRM route server is an extremely useful tool for getting the driving distance/time through multiple locations. The route server requires data that has to be downloaded and processsed before it can be used to serve routes from.

Processing OSRM data for large region like North America can be a real challenge due to memory and disk size requirements. It's also really time consuming. If you cut and try from scratch, you will repeatedly run into some constraints and fail after hours of running.

The following are summary notes from trying this with eventual success.