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@kekru
kekru / 01nginx-tls-sni.md
Last active Jun 23, 2021
nginx TLS SNI routing, based on subdomain pattern
View 01nginx-tls-sni.md

Nginx TLS SNI routing, based on subdomain pattern

Nginx can be configured to route to a backend, based on the server's domain name, which is included in the SSL/TLS handshake (Server Name Indication, SNI).
This works for http upstream servers, but also for other protocols, that can be secured with TLS.

prerequisites

  • at least nginx 1.15.9 to use variables in ssl_certificate and ssl_certificate_key.
  • check nginx -V for the following:
    ...
    TLS SNI support enabled
@chrismccord
chrismccord / phx-1.4-upgrade.md
Last active Mar 25, 2021
Phoenix 1.3.x to 1.4.0 Upgrade Guides
View phx-1.4-upgrade.md

Phoenix 1.4 ships with exciting new features, most notably with HTTP2 support, improved development experience with faster compile times, new error pages, and local SSL certificate generation. Additionally, our channel layer internals receiveced an overhaul, provided better structure and extensibility. We also shipped a new and improved Presence javascript API, as well as Elixir formatter integration for our routing and test DSLs.

This release requires few user-facing changes and should be a fast upgrade for those on Phoenix 1.3.x.

Install the new phx.new project generator

The mix phx.new archive can now be installed via hex, for a simpler, versioned installation experience.

To grab the new archive, simply run:

@mjason
mjason / Dockerfile
Last active May 16, 2017
build phoenix in docker
View Dockerfile
FROM ubuntu:16.04
RUN apt-get update
RUN apt-get install -y git wget curl build-essential
RUN wget https://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb && dpkg -i erlang-solutions_1.0_all.deb
RUN apt-get update
RUN apt-get install erlang -y
RUN apt-get install -y elixir
RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
@chrismccord
chrismccord / upgrade.md
Last active Jun 9, 2020
Phoenix 1.2.x to 1.3.0 Upgrade Instructions
View upgrade.md

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

@ziadoz
ziadoz / install.sh
Last active Jun 15, 2021
Install Chrome, ChromeDriver and Selenium on Ubuntu 16.04
View install.sh
#!/usr/bin/env bash
# https://developers.supportbee.com/blog/setting-up-cucumber-to-run-with-Chrome-on-Linux/
# https://gist.github.com/curtismcmullan/7be1a8c1c841a9d8db2c
# https://stackoverflow.com/questions/10792403/how-do-i-get-chrome-working-with-selenium-using-php-webdriver
# https://stackoverflow.com/questions/26133486/how-to-specify-binary-path-for-remote-chromedriver-in-codeception
# https://stackoverflow.com/questions/40262682/how-to-run-selenium-3-x-with-chrome-driver-through-terminal
# https://askubuntu.com/questions/760085/how-do-you-install-google-chrome-on-ubuntu-16-04
# Versions
CHROME_DRIVER_VERSION=`curl -sS https://chromedriver.storage.googleapis.com/LATEST_RELEASE`
@mrallen1
mrallen1 / discussion.md
Last active Jun 12, 2021
When does terminate/2 get called in a gen_server?
View discussion.md

When does terminate/2 get called in a gen_server?

This is what the [official documentation][1] says about the terminate/2 callback for a gen_server:

This function is called by a gen_server when it is about to terminate. It should be the opposite of Module:init/1 and do any necessary cleaning up. When it returns, the gen_server terminates with Reason. The return value is ignored.

Reason is a term denoting the stop reason and State is the internal state of the gen_server.

Reason depends on why the gen_server is terminating. If it is because another callback function has returned a stop tuple {stop,..}, Reason will have the value specified in that tuple. If it is due to a failure, Reason is the error reason.

View benchmark
#!/usr/bin/env ruby
$: << File.dirname(__FILE__)+'/lib'
require 'benchmark/ips'
require 'fast_blank'
class String
# active support implementation
def slow_blank?
/\A[[:space:]]*\z/ === self
end
@moklett
moklett / task1.exs
Last active May 13, 2021
Elixir Task - Crash Handling
View task1.exs
# This demonstrates that, when using async/await, a crash in the task will crash the caller
defmodule Tasker do
def good(message) do
IO.puts message
end
def bad(message) do
IO.puts message
raise "I'm BAD!"
end
@ignacy
ignacy / async_no_link.ex
Created Mar 15, 2016
Example of using Task.Supervisor.async_nolink with Elixir Tasks
View async_no_link.ex
@fxn
fxn / problem-solving-games.md
Last active Jun 26, 2020
Problem-Solving Games
View problem-solving-games.md