Sergio Álvarez xergio

Deploy react app with gitlab.com and RSYNC

This is tutorial is about simple client-server file updating. This is not blue-green deploy!

Protocol: RSYNC through SSH. Tested on target server: Ubuntu 16.04 x64. (suitable for Ubuntu 14.x).

I was tired of Chrome eating all my laptop resources so I decided to put some limit to it with cgroup.

As I was using Ubuntu 12.04 with support for cgroup, I installed the package cgroup-bin and add the following group to the file /etc/cgconfig.conf:

group browsers {
    cpu {
#       Set the relative share of CPU resources equal to 25%
        cpu.shares = "256";
 }

Install python-pip

sudo apt-get install python-pip libcairo2 python-cairo

Install Graphite and Dependencies

pip install carbon
pip install whisper
pip install django
pip install django-tagging
pip install graphite-web

Build the following and make it run as fast as you possibly can using Python 3 (vanilla). The faster it runs, the more you will impress us!

Your code should:

Download this 2.2GB file: https://s3.amazonaws.com/carto-1000x/data/yellow_tripdata_2016-01.csv
Count the lines in the file
Calculate the average value of the tip_amount field.

All of that in the most efficient way you can come up with.

Client-side SSL

For excessively paranoid client authentication.

Using self-signed certificate.

Create a Certificate Authority root (which represents this server)

Organization & Common Name: Some human identifier for this server CA.

openssl genrsa -des3 -out ca.key 4096
openssl req -new -x509 -days 365 -key ca.key -out ca.crt

	# This guide will show you how to configure ddclient to dynamically update your DNS at Cloudflare.
	# This cookbook makes use of a number of online guides - all of which I will reference at the end.

	# Cloudflare requires ddclient to be version 3.8.2 or you will get a 'cloudflare protocol didn't exist'.
	# Unfortunately, the package manager at this time makes use of 3.8.1
	# My suggestion is to follow the semi-autonomous process, by downloading the out of date package
	# and then manually update a few files. If you prefer, you can go down the fully manual route manual route.
	# Installation - Manual (Not Tested: https://www.cloudflare.com/technical-resources/#ddclient)

	# Installation - Semi-Autonomous (Recommended, follow below)

	<?php

	/*
	POST / HTTP/1.1
	Host: kinesis.<region>.<domain>
	x-amz-Date: <Date>
	Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=content-type;date;host;user-agent;x-amz-date;x-amz-target;x-amzn-requestid, Signature=<Signature>
	User-Agent: <UserAgentString>
	Content-Type: application/x-amz-json-1.1
	Content-Length: <PayloadSizeBytes>

	<?xml version="1.0"?>
	<!--
	dirlist.xslt - transform nginx's into lighttpd look-alike dirlistings

	I'm currently switching over completely from lighttpd to nginx. If you come
	up with a prettier stylesheet or other improvements, please tell me :)

	-->
	<!--
	Copyright (c) 2016 by Moritz Wilhelmy <[email protected]>

	{
	["outline"] = true,
	["fontSize"] = 28,
	["color"] = {
	[1] = 1,
	[2] = 0.086274509803922,
	[3] = 0.11372549019608,
	[4] = 1,
	},
	["displayText"] = "%c",

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