AndrewDryga

defmodule SageExample do
  import Sage
  require Logger

  # It is better to build Saga struct in a module attribute, 
  # we don't need to spend resources each time we want to execute it
  @create_and_subscribe_user_sage 
    new()
    |> run(:user, &create_user/2)
    |> run(:plans, &fetch_subscription_plans/2)

AndrewDryga

defmodule Sample.Application do
  use Application

  # ...
  def start(_type, _args) do
    import Supervisor.Spec
    # ...
    
    # Update application environment from system environment variable when application starts
    Application.put_env(:sample_app, :configurable_env_var, System.get_env("CONFIGURABLE_ENV_VAR"))

AndrewDryga

#!/bin/bash

command -v fswatch >/dev/null 2>&1 || { echo >&2 "fswatch is not installed. To install it use 'brew install fswatch'. Aborting."; exit 1; }
command -v mix >/dev/null 2>&1 || { echo >&2 "mix is not installed. Aborting."; exit 1; }

PROJECT_PATH=$(git rev-parse --show-toplevel)
[[ "$?" != "0" ]] && echo "Stale test watch works only within git project." && exit 1;

declare -a IGNORED_PATHS
declare -i throttle_by=2

AndrewDryga

FROM nebo15/alpine-elixir:1.5.1 as builder
MAINTAINER Nebo#15 support@nebo15.com

# Always build with production environment
ENV MIX_ENV=prod

# `/opt` is a common place for third-party provided packages that are not part of the OS itself
WORKDIR /opt/app

# Required in elixir_make

AndrewDryga

{
  "name": "myappapi",
  "description": "MyApp Backend Application",
  "scripts": {
    "postdeploy": "/app/bin/myapp seed"
  },
  "env": {
    "MY_ENV_VARIABLE": {
      "required": true
    }

AndrewDryga

#!/usr/bin/env bash
set -xe

# Create a release tarball
mix release --verbose

# Find tarball location
APP_NAME="myapp"
APP_TARBALL=$(find _build/${MIX_ENV}/rel/${APP_NAME}/releases -maxdepth 2 -name ${APP_NAME}.tar.gz)

AndrewDryga

release: /app/bin/myapp migrate
web: /app/bin/myapp foreground

AndrewDryga

use Mix.Releases.Config,
  default_release: :default,
  default_environment: :default

environment :default do
  set dev_mode: false
  set include_erts: false
  set include_src: false
  set cookie: :"this_is_a_secret"
  # Add release commands

AndrewDryga

#!/usr/bin/env bash
/app/bin/myapp command "Elixir.MyAppAPI.ReleaseTasks" migrate

AndrewDryga

defmodule MyAppAPI.ReleaseTasks do
  alias Ecto.Migrator

  @otp_app :myapp_api
  @start_apps [:logger, :ssl, :postgrex, :ecto]

  def migrate do
    init(@otp_app, @start_apps)

    run_migrations_for(@otp_app)