chefren

#!/usr/bin/env bash
# Runs all .json files through pythons json lint tool before commiting,
# to make sure that you don't commit broken json objects.

git_dir=$(git rev-parse --show-toplevel)

for file in $(git diff-index --name-only --diff-filter=ACM --cached HEAD -- \
    | grep -P '\.(json)$'); do
    python -mjson.tool $file 2> /dev/null
    if [ $? -ne 0 ] ; then

chefren

//
// Generate EXIF GPS metadata
// Swift 3
// Exif Version 2.2.0.0 supports decimal degrees

import Foundation
import CoreLocation
import ImageIO

extension CLLocation {

chefren

How to setup AWS lambda function to talk to the internet and VPC

I'm going to walk you through the steps for setting up a AWS Lambda to talk to the internet and a VPC. Let's dive in.

So it might be really unintuitive at first but lambda functions have three states.

1. No VPC, where it can talk openly to the web, but can't talk to any of your AWS services.
2. VPC, the default setting where the lambda function can talk to your AWS services but can't talk to the web.
3. VPC with NAT, The best of both worlds, AWS services and web.

chefren

Scripted Jenkins Plugins install

Jenkins has a very rich catalog of plugins and it's quite easy to install and update them via UI. BTW, when you want to add tons of plugin via UI, it's a fairly long and boring procedure.

Hopefully, mass installation (or update) could be easy using a simple bash script (curl/python required) :

• https://raw.githubusercontent.com/hgomez/devops-incubator/master/forge-tricks/batch-install-jenkins-plugins.sh

Create a file containing plugins to be installed (or updated), ie iplugins :

chefren

#!/bin/bash

set -e

if [ $# -eq 0 ]; then
  echo "USAGE: $0 plugin1 plugin2 ..."
  exit 1
fi

plugin_dir=/var/lib/jenkins/plugins

chefren

#!/bin/sh
set -eu

PROTO='udp'
PORT='123'
LOG='NTP'
CHAIN=ntplog
SET=ntplog
MAXELEM=33554432
HASHSIZE=65535