Thibaut Barrère thbar

Prelude

I. Preface and Motivation

This guide was written because I don't particularly enjoy deploying Phoenix (or Elixir for that matter) applications. It's not easy. Primarily, I don't have a lot of money to spend on a nice, fancy VPS so compiling my Phoenix apps on my VPS often isn't an option. For that, we have Distillery releases. However, that requires me to either have a separate server for staging to use as a build server, or to keep a particular version of Erlang installed on my VPS, neither of which sound like great options to me and they all have the possibilities of version mismatches with ERTS. In addition to all this, theres a whole lot of configuration which needs to be done to setup a Phoenix app for deployment, and it's hard to remember.

For that reason, I wanted to use Docker so that all of my deployments would be automated and reproducable. In addition, Docker would allow me to have reproducable builds for my releases. I could build my releases on any machine that I wanted in a contai

This is a Gistified version of https://gist.github.com/hfreire/5846b7aa4ac9209699ba#gistcomment-2833377

Using Elixir releases and multi-stage Docker files to simplify Phoenix deployment

This repo is my experiment in deploying a basic Phoenix app using the release feature from elixir 1.9 (https://elixir-lang.org/blog/2019/06/24/elixir-v1-9-0-released/) and docker, via a multi-stage Dockerfile (https://docs.docker.com/develop/develop-images/multistage-build/) leveraging bitwalker's docker images for Elixir and Phoenix.

Step 1: Install Elixir 1.9.1 (and Erlang)

The simplest way to manage Elixir versions is to use asdf.

Rails => Lambda

These are my notes from deploying a boilerplate Rails app to AWS Lambda (yeah, you read that right) using Lamby. Basically this is me going through the Quick Start guide.

Questions/comments: https://twitter.com/heyjoshwood

	# Add this snippet to the top of your playbook.
	# It will install python2 if missing (but checks first so no expensive repeated apt updates)
	# [email protected]

	- hosts: all
	gather_facts: False

	tasks:
	- name: install python 2
	raw: test -e /usr/bin/python \|\| (apt -y update && apt install -y python-minimal)


	function onPageRequest(req, res) {

	res.writeHead(200, {
	'Content-Type': 'application/json',
	"Access-Control-Allow-Origin": "*"
	});

	res.end(JSON.stringify(
	{

	How to convert existing phoenix app to an umbrella app.
	https://elixir-lang.slack.com/archives/phoenix/p1472921051000134


	chrismccord [10:14 PM]
	@alanpeabody yes, it's straightforward

	[10:14]
	1) mix new my_umbrella --umbrella

	workflow "Build and deploy on push" {
	on = "push"
	resolves = [
	"Branch master",
	"Invalidate cache",
	]
	}

	action "Build" {
	uses = "docker://ruby:latest"

	require 'aws-sdk'
	require 'active_support'
	require 'active_support/core_ext'

	# http://docs.aws.amazon.com/sdkforruby/api/Aws/S3/Object.html#copy_to-instance_method
	COPY_TO_OPTIONS = [:multipart_copy, :content_length, :copy_source_client, :copy_source_region, :acl, :cache_control, :content_disposition, :content_encoding, :content_language, :content_type, :copy_source_if_match, :copy_source_if_modified_since, :copy_source_if_none_match, :copy_source_if_unmodified_since, :expires, :grant_full_control, :grant_read, :grant_read_acp, :grant_write_acp, :metadata, :metadata_directive, :tagging_directive, :server_side_encryption, :storage_class, :website_redirect_location, :sse_customer_algorithm, :sse_customer_key, :sse_customer_key_md5, :ssekms_key_id, :copy_source_sse_customer_algorithm, :copy_source_sse_customer_key, :copy_source_sse_customer_key_md5, :request_payer, :tagging, :use_accelerate_endpoint]

	Aws.config.update({
	region: 'us-east-1',
	credentials: Aws::Credentials.new(AWS_ACCESS_KEY, AWS_SECRET_KEY)