Jérémie Tarot silopolis

Poor Man's Global Traffic Manager

Sometimes we need to add redundancy to some service or server which happen to be a public-facing entry point of our infrastructure. For example, imagine we want to add a high availability pair for a load balancer which sits on the edge of network and forwards traffic to alive backend servers.

                                             ┌─────────────┐
                                             │             │
                                      ┌─────►│  Backend 1  │
                                      │      │             │
                                      │      └─────────────┘

(this is an old example that illustrates how I introduced a a team to the process of RFCs, my understanding of how to deploy this process well has evolved since then)

RFC on RFCs

Main Author: @buritica
Backers: n/a

1 Summary

Electron apps

Slide deck frameworks supporting Markdown source

AWS CLI JMESPath cheatsheet

Random query recipes of JMESPath for the AWS CLI tools that I might have written or stumbled upon.

Examples

I use tmux splits (panes). Inside one of these panes there's a Vim process, and it has its own splits (windows).

In Vim I have key bindings C-h/j/k/l set to switch windows in the given direction. (Vim default mappings for windows switching are the same, but prefixed with C-W.) I'd like to use the same keystrokes for switching tmux panes.

An extra goal that I've solved with a dirty hack is to toggle between last active panes with C-\.

Here's how it should work:

	/*
	* A simple vscode style customization for https://github.com/be5invis/vscode-custom-css
	* Just put this file into anywhere and refer it from your vscode `settings.json` under `vscode_custom_css.imports` as following:
	* "vscode_custom_css.imports": [
	* "file:///c:/Users/anyone/vscode.css"
	* ]
	**/
	a.label-name,
	p.subtitle.description,
	h1.product-name.caption,

	# -- coding: utf-8 --
	from __future__ import unicode_literals
	#
	"""
	***************************************************************************
	* Copyright (c) 2017 2018 2019 2020 <mario52> *
	* *
	* This file is a supplement to the FreeCAD CAx development system. *
	* *
	* This program is free software; you can redistribute it and/or modify *

	#!/usr/bin/env python
	# -- coding: utf-8 --
	#
	# Sends HAL signals to the given MQTT broker host.
	#
	# usage: hal2mqtt.py [hostname]
	#
	# Video demo at https://www.youtube.com/watch?v=uFbr7xBjItE
	#
	# sudo apt-get install mosquitto mosquitto-clients python-mosquitto

	List of DebOps things to do in 2015:

	✓ add ansible_managed template in debops script
	✓ add option to automatically upgrade all packages instead of just security upgrades
	✓ new PKI role
	- nginx certificate pinning
	✓ update gitlab role, remove shasum dependency
	- gitlab role, detach mysql/postgresql dependency
	- add racktables role or opendcim role
	✓ add tls support in mysql