Sven Varkel svenvarkel

Chief Engineer at Stablewood Properties, business hacker at Prototypely. I've created a number of small, medium and large systems from scratch.

svenvarkel / gist:1936f343eb20a90fc94abc1cc2c4e0e5

Created October 25, 2023 07:49

BeanieInfiniteRecursionTestCase

	import asyncio
	import unittest
	from enum import Enum
	from datetime import datetime, UTC
	from typing import ClassVar, Optional, List

	from pymongo import IndexModel, ASCENDING
	from pydantic import BaseModel, Field, Extra
	from beanie import Document, BackLink, Link, init_beanie

svenvarkel / create_indexes.js

Created January 20, 2021 09:37

Create indexes on MongoDB replica set member

	#!/usr/bin/env bash
	if [ -z "$1" ];
	then
	echo "Usage: $0 <index file path>"
	exit 1
	fi
	export INDEX_FILE="$1"
	systemctl stop mongod
	su mongodb --shell /bin/bash -c 'mongod --dbpath /mongodb/data --port 47017 --wiredTigerDirectoryForIndexes --pidfilepath=/tmp/mongod.pid &'
	while ! nc -z localhost 47017 </dev/null; do sleep 5; done

svenvarkel / centroid-and-center-difference-on-a-rectangular-polygon

Last active September 27, 2019 08:21

This gist contains GeoJSON to illustrate center and centroid differences on a rectangular polygon

svenvarkel / Dockerfile

Created September 26, 2019 13:09

Dockerfile for SailsJS project

	FROM node:10

	# Set the workdir /var/www/myapp
	WORKDIR /var/app/current

	# Copy the package.json to workdir
	COPY package.json ./
	COPY package-lock.json ./
	# Copy application source
	COPY .sailsrc ./

svenvarkel / docker-compose.yml

Last active October 7, 2019 18:57

docker-compose stack for SailsJS API with ReactJS frontend app on top of MongoDB, Redis and Nginx

	version: "3.7"
	services:
	rabbitmq:
	image: rabbitmq:3-management
	environment:
	RABBITMQ_DEFAULT_VHOST: "/myproject"
	RABBITMQ_DEFAULT_USER: "dev"
	RABBITMQ_DEFAULT_PASS: "dev"
	volumes:
	- type: volume

svenvarkel / aws_ec2_nginx_certbot_autorenew.sh

Last active January 16, 2019 23:36

This script renews the LetsEncrypt certificates in a firewalled EC2 machine inside AWS VPC

	#!/usr/bin/env bash
	#
	# This script would help to automate renewal of LetsEncrypt TLS certificates in a Linux machine
	# running nginx web server on AWS EC2.
	# What it does:
	# 1. it stops nginx
	# 2. it opens incoming firewall ports 80 and 443 for certbot host verification
	# 3. it runs certbot to renew certificates. Certbot launches a standalone HTTP server on port 80 or 443
	# 4. it closes incoming firewall ports 80 and 443
	# 5. it starts nginx

svenvarkel / socks_on_and_off

Created January 9, 2018 11:45

Poor man's SOCKS proxy via SSH. Add the following lines to your ~/.bash_profile and then socks_on / socks_off

	alias socks_on="ssh -D 8666 -C -N -f -M -S ~/.socks.socket $USER@<your_office_gateway>; networksetup -setsocksfirewallproxystate Wi-Fi on;"
	alias socks_off="networksetup -setsocksfirewallproxystate Wi-Fi off; ssh -S ~/.socks.socket -O exit $USER@<your_office_gateway>;"

svenvarkel / centroid.difference.map.geojson

Last active April 6, 2017 12:10

Centroid difference

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svenvarkel / gist:0cb7d53139eb0258640c65bd4542ef6b

Last active March 29, 2017 17:20

Configure tag Name as hostname for New Relic

	files:
	"/opt/elasticbeanstalk/hooks/appdeploy/post/60_configure_newrelic_hostname.sh":
	mode: "000755"
	owner: root
	group: root
	content: \|
	#!/bin/bash
	set -xe

	export EC2_TAG_NAME=$(/opt/aws/bin/ec2-describe-tags --filter "resource-type=instance" --filter "resource-id=$(/opt/aws/bin/ec2-metadata -i \| cut -d ' ' -f2)" --filter "key=Name" \| cut -f5)

svenvarkel / usPostStreetSuffixAbbreviationMap.js

Created December 19, 2016 17:19

This gist contains US Post street suffix abbreviation map. It can be used as a part of US addresses normalization.