Roman Heinrich mindreframer

Learning FP the hard way: Experiences on the Elm language

by Ossi Hanhinen, @ohanhi

with the support of Futurice 💚.

Licensed under CC BY 4.0.

Editorial note

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

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[new post] (https://gist.github.com/idibidiart/49a095b6bc528638f34f)

Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.

This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.

There is a companion feature matrix of various tools. Comments are welcome in the same manner.

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

	defmodule MyApp do
	use Application

	def start(_type, _args) do
	import Supervisor.Spec, warn: false

	children = [
	Plug.Adapters.Cowboy.child_spec(:http, MyApp.Router, [], [
	dispatch: dispatch
	])

	// devDependencies in package.json:

	"require-reload": "0.2.2",
	"react-transform-hmr-no-accept": "1.0.1", // not published, get it here: https://github.com/brandonbloom/react-transform-hmr

	// in babelrc:

	"env": {
	"development": {
	"plugins": [

	defmodule Duration do
	@moduledoc """
	This duration module parses and formats strings
	for a time duration in hours and minutes and
	optionally seconds (e.g. 01:00 for an hour,
	00:01:10 for one minute and ten seconds).
	"""
	@match ~r/^(?<hour>\d{1,2}):(?<min>\d{1,2}):?(?<sec>\d{0,2})$/

	def parse(string) do

	# ATTENTION: This is now supported in plug_cowboy as of 2.1.0:
	# https://hexdocs.pm/plug_cowboy/Plug.Cowboy.Drainer.html

	defmodule DrainStop do
	@moduledoc """
	DrainStop Attempts to gracefully shutdown an endpoint when a normal shutdown
	occurs. It first shuts down the acceptor, ensuring that no new requests can be
	made. It then waits for all pending requests to complete. If the timeout
	expires before this happens, it stops waiting, allowing the supervision tree
	to continue its shutdown order.

	defmodule StageInspector do
	alias Experimental.{GenStage}
	use GenStage

	def init(type) when type in [:consumer, :producer_consumer] do
	{type, type}
	end

	def handle_events(events, _from, state = :consumer) do
	Enum.each events, &inspect_event/1