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" Keybase - saltpack
augroup SALTPACK
  au!
  " Make sure nothing is written to ~/.viminfo
  au BufReadPre,FileReadPre *.saltpack set viminfo=
  " No other files with unencrypted info
  au BufReadPre,FileReadPre *.saltpack set noswapfile noundofile nobackup

  " Reading Files, assumes you can decrypt
  au BufReadPost,FileReadPost *.saltpack :%!keybase decrypt

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# Requires the 'requests' module: http://docs.python-requests.org/en/latest/

import json
import requests

URL = 'https://data.atlasats.com:4000/api'

def bayeux_call(data):
    headers = {'content-type': 'application/json'}
    res = requests.post(URL, data=json.dumps(data), headers=headers, verify=False) # no SSL cert check

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BEGIN;
LOCK table_name;
ALTER TABLE table_name ADD COLUMN column_new column_type;
UPDATE table_name SET column_new = column_name;
ALTER TABLE table_name DROP column_name;
ALTER TABLE table_name RENAME column_new TO column_name;
END;

-- varchar -> integer
--   UPDATE cpvbeacon_dev SET column_new = CAST (nullif(column_name, '') AS INTEGER);

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1. Gemfile

gem 'browserify-rails', '1.5.0' # until fix: https://github.com/browserify-rails/browserify-rails/issues/101
gem 'react-rails'

Browserify-rails allows to use browserify within assets pipeline. React-rails is here only to allow to use #react_component (and thus, prerendering).

Note that jquery-rails can be removed from Gemfile, the npm version of jquery and jquery-ujs will be used instead.

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This write up was based on Henrik's gist

Create server

1. Create a droplet on digital ocean. Use my referal link for $10 credit. I also credit if you spend money, so thanks in advance ;)
   1. Select "Create Droplet"
   2. Under "Choose an image", click on "One-click Apps"
   3. Select Dokku for your app
   4. Under "Choose a size" select at least 1GB of RAM
   5. Add your ssh public key
2. Click "Create"

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This runs a build for a small elixir (phoenix) project in about 40 seconds by caching as much of the compiled files as possible.

We've been using this for months in multiple projects without any issues. Please ping be if there is any issues with this script and I'll update it.

It should be generic enough to work on any elixir app using mix.

If you have a elixir_buildpack.config, then enable that section in the build script to keep versions in sync!

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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.

  DrainStop should be installed in your supervision tree *after* the
  EndPoint it is going to drain stop.

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# In your app's root.
# Make Pow!! export all the env variables contained in the .env file used by Foreman.
export $(cat .env)

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Intro

The plan is to create a pair of executables (ngrok and ngrokd) that are connected with a self-signed SSL cert. Since the client and server executables are paired, you won't be able to use any other ngrok to connect to this ngrokd, and vice versa.

DNS

Add two DNS records: one for the base domain and one for the wildcard domain. For example, if your base domain is domain.com, you'll need a record for that and for *.domain.com.

Different Operating Systems

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Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

1. Get an OAuth Token from GitHub

---

First you will need to get an OAuth Token from GitHub using your own username and "note"