John Ellis deckerego

Gists, code, and hardware projects for automation and education. A few enterprise integration framework pieces along the way.

deckerego / tokenCount.js

Created September 3, 2018 21:45

Count token frequency (word count) for a string in JavaScript

	var testString = "cat you cat are a cat who is a cat nope not a cat";
	var tokenized = testString.split(" ");
	var tokenFreq = tokenized.reduce((acc, val) => { acc[val] ? acc[val]++ : acc[val] = 1; return acc; }, {});
	Object.entries(tokenFreq).forEach(entry => console.log(entry[0], ": ", entry[1]));

deckerego / JSTest.swift

Created June 14, 2018 19:24

Example of executing JavaScript in iOS using Swift

	let context = JSContext()!
	let myNumber = 12
	context.setObject(myNumber, forKeyedSubscript: "myNumber" as NSString)
	let result = context.evaluateScript("myNumber + 20;")
	print("JavaScript eval: \(result!.toInt32())")

deckerego / node_upgrade.sh

Created May 29, 2018 17:08

Upgrade Node.JS on MacOS

deckerego / helm_package.sh

Created March 29, 2018 19:29

Update & package a Helm chart

	#!/bin/sh

	HELM_CHART_DIR="../../helm_charts"

	helm dependency update
	helm package -d "$HELM_CHART_DIR" .
	helm repo index "$HELM_CHART_DIR"

deckerego / docker_prune.sh

Created March 28, 2018 15:07

Clean up local Docker images

	#!/bin/sh
	docker system prune --all --volumes

deckerego / gencert.sh

Created March 18, 2018 16:27

Generate a wildcard SSL certificate from Let's Encrypt

	#!/bin/sh

	mkdir -p log lib etc
	sudo docker run -it --rm --name certbot -v $PWD/etc:/etc/letsencrypt -v $PWD/lib:/var/lib/letsencrypt -v $PWD/log:/var/log/letsencrypt certbot/certbot certonly --debug --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory

deckerego / display-off.conf

Created February 9, 2018 02:36

Turn off the console monitor when Ubuntu starts

	start on startup
	task
	exec /usr/sbin/vbetool dpms off

deckerego / landscape.cfg

Last active December 21, 2017 03:35

ArchRetro MAME Config Examples

	video_allow_rotate = "true"
	video_rotation = "3"
	aspect_ratio_index = "19"
	video_aspect_ratio_auto = false
	video_aspect_ratio = .75

deckerego / Dockerfile

Created December 5, 2017 21:07

A test Docker container with interactive output

	FROM ubuntu:latest

	MAINTAINER [email protected]

	RUN apt-get --assume-yes update
	RUN apt-get --assume-yes install docker.io iputils-ping net-tools netcat bash

	ENV DOCKER_HOST 172.17.0.1

	ENTRYPOINT ["ping", "localhost"]

deckerego / launch_wait.sh

Created October 19, 2017 19:35

Sleep while waiting for a TCP port to open, then execute a command