Stefan Pfaffel stfsy

🎯

Focusing

Senior Cloud Architect - Guitarist - Musician

stfsy / module-variable.tf

Created September 30, 2021 19:51

stfsy / opentelemetry-exporter-setup.js

Created July 30, 2021 19:33

Setup of an opentelemetry prometheus exporter

	'use strict'

	const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus')
	const { MeterProvider } = require('@opentelemetry/metrics')

	// configuration options omitted for brevity
	const exporter = new PrometheusExporter({ host, port, endpoint, appendTimestamp, prefix }, () => {
	console.log('Exporter now running on port', port)
	})

stfsy / reduce-w-output-array.js

Last active July 30, 2021 19:18

Reduce the parsed output of the w command to an object

	'use strict'

	module.exports = (result) => {
	return result.map(({ user, 'login@': login, from }) => {
	return Object.assign({}, { user, login, from })
	}).reduce((context, next) => {
	if (!Array.isArray(context[next.user])) {
	context[next.user] = []
	}
	context[next.user].push(next)

stfsy / unix-w-output-parser.js

Last active July 30, 2021 19:21

Parses the output of unix w command into an JS array containing zero or more Objects

	'use strict';

	module.exports = (output) => {
	const lines = output.split('\n')

	const columns = lines[1].split(' ').filter(column => column).map(entry => entry.toLowerCase())
	const values = lines.slice(2).map(line => line.split(' ').filter(entry => entry))
	return values.slice(0, values.length - 1).reduce((context, next) => {
	const line = {}
	next.forEach((value, index) => {

stfsy / dependabot.yaml

Created July 5, 2021 16:09

Dependabot configuration file to automatic Github Actions updates

	# place file in .github directory of your repository
	version: 2
	updates:
	- package-ecosystem: github-actions
	assignees:
	- stfsy # add yourself or other users here as you wish
	directory: /
	schedule:
	interval: daily

stfsy / ssl.yaml

Last active June 6, 2021 08:37

Spring Boot most simple ssl configuration for development

	server:
	port: 8443
	ssl:
	key-store: "file:/etc/letsencrypt/live/monitoring.blauspecht.io/keystore.p12"
	key-store-password: ""
	key-password: ""

stfsy / insecure.js

Last active June 5, 2021 20:10

ExpressJS server, that redirects traffic to https and answers Lets Encrypt acme challenge webroot requests directly

	'use strict'

	const spdy = require('spdy')
	const express = require('express')
	const port = process.env.port \|\| 8080

	const app = express()

	app.use('/.well-known/acme-challenge/', express.static('./certbot/.well-known/acme-challenge/', {
	dotfiles: 'allow'

stfsy / server.js

Last active June 5, 2021 19:57

ExpressJS configuration for SSL with Let's Encrypt certificates

	'use strict'

	const fs = require('fs')
	const constants = require('crypto').constants
	const spdy = require('spdy')

	const server = require('express')
	const app = express()
	const port = process.env.port \|\| 3000

stfsy / ssl.conf

Created June 5, 2021 19:52

NGINX ssl snippets

	ssl_dhparam /etc/ssl/certs/dhparam.pem;

	ssl_session_timeout 1d;
	ssl_session_cache shared:SSL:10m;
	ssl_session_tickets off;

	ssl_protocols TLSv1.2 TLSv1.3;
	ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;

	ssl_stapling on;

stfsy / nginx.conf

Last active June 5, 2021 19:53

NGINX configuration for lets encrypt files | certbot webroot command

	include snippets/ssl.conf;

	client_header_buffer_size 1k;
	client_max_body_size 8m;
	large_client_header_buffers 4 4k;

	server_tokens off;

	server {
	listen 8080;