birkhoff BirkhoffLee

🎓

Learning about CS

backend, SRE, devops, music

BirkhoffLee / install.sh

Last active November 21, 2019 12:08

Install Docker Engine on CentOS 8

	#!/bin/sh

	# Tested on Vultr as of Nov 21, 2019

	groupadd docker
	usermod -aG docker birkhoff # add birkhoff to docker group
	newgrp docker

	yum remove -y docker \
	docker-client \

BirkhoffLee / gist:84fcae9dc0b2095a3a87eedfbedd4ce8

Created November 21, 2019 06:53

Install Borg & Borgmatic on CentOS 8

	# Tested on a Vultr CentOS 8 server. Run with root!

	yum install -y openssl-devel gcc-c++ python3-devel libacl-devel
	dnf install -y redhat-rpm-config
	pip3 install virtualenv
	virtualenv --python=python3 borg-env
	source borg-env/bin/activate
	pip3 install borgbackup

	# Borgmatic

BirkhoffLee / docker-compose.yml

Created September 16, 2019 15:11

docker-compose Grafana + InfluxDB + collectd with Traefik

	version: '3.2'

	services:
	collectd:
	image: fr3nd/collectd
	privileged: true
	network_mode: host
	volumes:
	- /proc:/mnt/proc:ro
	- ./collectd.conf:/etc/collectd/collectd.conf

BirkhoffLee / index.js

Last active August 31, 2019 07:55

daily RSS feed to mailgun email

	let d = new Date()
	d.setDate(d.getDate() - 1)
	const date = d.toISOString().split('T')[0]

	const RssToEmail = require('rss-to-email')
	const config = {
	accentColor: "red",
	header: {
	link: "",
	title: "RSS Feed"

BirkhoffLee / teamviewer_change_id.py

Created April 22, 2019 13:37

Change the ID of Teamviewer for macOS to circumvent "commercial use detected"

	# -- coding: utf-8 --
	import sys
	import os
	import glob
	import platform
	import re
	import random
	import string

	print('Change ID of Teamviewer for macOS')

BirkhoffLee / rixCloud_traffic_usage.sh

Created March 14, 2019 23:46

Calculates traffic usage with rixCloud API and push notification to your iPhone

	#!/bin/bash

	# https://unix.stackexchange.com/a/259254/301433
	bytesToHuman() {
	b=${1:-0}; d=''; s=0; S=(Bytes {K,M,G,T,P,E,Z,Y}iB)
	while ((b > 1024)); do
	d="$(printf ".%02d" $((b % 1024 * 100 / 1024)))"
	b=$((b / 1024))
	let s++
	done

BirkhoffLee / netdata.html

Created January 16, 2019 08:20

	<!DOCTYPE html>
	<html lang="en">
	<head>
	...
	<script>
	// don't load bootstrap - confluence does not need this
	var netdataNoBootstrap = true;

	var netdataTheme = 'white';
	var netdataPrepCallback = function() {

BirkhoffLee / base64.js

Created January 13, 2019 08:13

base64 in nodejs

	const encode = s => Buffer.from(s).toString('base64')
	const decode = s => Buffer.from(s, 'base64').toString()

BirkhoffLee / script.sh

Last active December 5, 2018 14:47

CentOS firewalld + Docker companion

	cp /etc/docker/daemon.json /etc/docker/daemon.json.old
	echo '{"iptables": false}' > /etc/docker/daemon.json
	firewall-cmd --permanent --direct --add-rule ipv4 nat POSTROUTING 0 -o eth0 -j MASQUERADE # this enables containers access outside internet
	firewall-cmd --reload

BirkhoffLee / ss_subscribe_to_surge.js

Created October 11, 2018 06:02

This node script converts a base64-encoded ShadowSocks subscription string to a Surge proxies configuration.


	const querystring = require('querystring')

	let args = process.argv.slice(2)

	if (!args[0]) {
	console.error("Usage: node index.js [subscribe_list_base64_encoded]")
	process.exit(1)
	}