Daniel van Dorp djvdorp

How to Review Changes between Cloud Foundry Releases

This gist decribes a recommended way to review the differences between Cloud Foundry releases so they can be applied to our environments.

There are multiple ways listed to check the differences but typically you want to

Use git diff to see what has changed between release branches
Check the spec files to see the default options of the items that have been introduced or changed
Generate two Cloud Foundry manifests from each release and compare the two using spiff diff

MacBookNetworkAliveOnSleep

As someone that regularly has multiple SSH/VPN sessions open, it can be a huge inconvience to lose all the connections when I lock my screen to get up to go to a meeting, lunch, etc. This is especially true for those connections that require two factor authentication. So, how can I tell my MacBook to keep those connections alive, even though my screen is locked?

Well, turns out that it is pretty simple. All that is needed is to run the following command.

cd /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources
sudo ./airport en0 prefs DisconnectOnLogout=NO

BOSH command line interface cheatsheet

Introduction

BOSH is a powerful tool to install and manage your deployments. You can find docs on https://bosh.io/docs. Consider using bosh-init tool to install to a cloud of your choice MicroBOSH instance (MicroBOSH is a single VM BOSH installation, it has everything that you need to deploy and manage).

Installing of BOSH CLI

BOSH command line interface is implemented as a ruby gem and can be run on every platform that supports ruby, you'll need to have ruby 2.1.x or higher to run it. To install it you can run gem install bosh_cli and gem update bosh_cli to update to a newer version.

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

Keyboard-only Mac Cheatsheet

Hi, I'm Lorna and I don't use a mouse. I have had RSI issues since a bad workstation setup at work in 2006. I've tried a number of extra hardware modifications but what works best for me is to use the keyboard and only the keyboard, so I'm in a good position and never reaching for anything else (except my coffee cup!). I rather unwisely took a job which required me to use a mac (I've been a linux user until now and also had the ability to choose my tools carefully) so here is my cheatsheet of the apps, tricks and keyboard shortcuts I'm using, mostly for my own reference. Since keyboard-only use is also great for productivity, you may also find some of these ideas useful, in which case at least something good has come of this :)

Apps List

There's more detail on a few of these apps but here is a quick overview of the tools I've installed and found helpful

Tool	Link	Comments

	# See docs/examples
	# http://doc.gitlab.com/ce/ci/quick_start/README.html
	# http://doc.gitlab.com/ce/ci/yaml/README.html

	# GitLab CI template for Go tests. Note this installs
	# a new working copy of Go in a non-standard path such
	# that sudo/root is not needed for the install stage.

	# note that this particular install-environment stage
	# is overly verbose in order to debug anything tricky

	# A heavily customized VCL to support WordPress
	# Some items of note:
	# Supports https
	# Supports admin cookies for wp-admin
	# Caches everything
	# Support for custom error html page
	vcl 4.0;
	import directors;
	import std;

	#!/usr/bin/env bash

	#copy this in a folder from path ex: /usr/local/bin
	#usage: docker-machine-rename default my-default

	# Authors
	#
	# alexproca initial script
	# eurythmia sed magic

	# filter by request host header
	varnishlog -q 'ReqHeader ~ "Host: example.com"'

	# filter by request url
	varnishlog -q 'ReqURL ~ "^/some/path/"'

	# filter by client ip (behind reverse proxy)
	varnishlog -q 'ReqHeader ~ "X-Real-IP: .*123.123.123.123"'

	# filter by request host header and show request url and referrer header

	echo -e "\nHidden=true\n"\|sudo tee --append /etc/xdg/autostart/tracker-extract.desktop
	echo -e "\nHidden=true\n"\|sudo tee --append /etc/xdg/autostart/tracker-miner-apps.desktop
	echo -e "\nHidden=true\n"\|sudo tee --append /etc/xdg/autostart/tracker-miner-fs.desktop
	echo -e "\nHidden=true\n"\|sudo tee --append /etc/xdg/autostart/tracker-miner-user-guides.desktop
	echo -e "\nHidden=true\n"\|sudo tee --append /etc/xdg/autostart/tracker-store.desktop

	gsettings set org.freedesktop.Tracker.Miner.Files crawling-interval -2
	gsettings set org.freedesktop.Tracker.Miner.Files enable-monitors false

	tracker reset --hard