Elixir Club 8 Peremoga Space, Kyiv 21.10.2017

1. Deploying Elixir/Phoenix
w/ Distillery
Elixir Club 8
21 October | Kyiv
Yaroslav Martsynyuk

2. What is Distillery and What it Does [not]?
Does:
- Elixir release manager
- Builds release package
- Builds upgrade/downgrade package
Doesn`t:
- Deploy package to server
- Start/upgrade/downgrade app

3. 1 defp deps do
2 [
3 {:phoenix, "~> 1.3.0"},
4 {:phoenix_pubsub, "~> 1.0"},
5 {:phoenix_ecto, "~> 3.2"},
6 {:phoenix_html, "~> 2.10"},
7 {:phoenix_live_reload, "~> 1.0", only: :dev},
8 {:gettext, "~> 0.11"},
9 {:cowboy, "~> 1.0"},
10 {:distillery, "~> 1.5.2"}
11 ]
12 end
Add Distillery As Dependency

4. $> mix release.init
1 use Mix.Releases.Config,
2 default_release: :web,
3 default_environment: Mix.env()
4
5 environment :prod do
6 set include_erts: true
7 set cookie: “ M*~{1amT9B(cG9qoi3I*a>BUS{AkC;Lb<hh~BG[g ”
8 end
9
10 release :web do
11 set version: current_version(:web)
12 end
Init Release

5. $> MIX_ENV=prod mix deps.get --only prod
$> MIX_ENV=prod mix release.init
$> MIX_ENV=prod mix release [--upgrade] --env=prod
VERSION - 1 => VERSION => VERSION + 1
Create Release/Upgrade

6. 1 #! /usr/bin/env
2
3 V=$(grep 'version' mix.exs | cut -d'"' -f2)
4
5 if["$(ssh user@host /tmp/bin/demo ping)" = "pong" ]; then
6 bash ./upgrade.sh
7 else
8 cd ~/demo
9 MIX_ENV=prod mix deps.get --only prod
10 MIX_ENV=prod mix release.init
11 MIX_ENV=prod mix release --env=prod
12 scp ./releases/${V}/demo.tar.gz user@host:/tmp
13 ssh user@host tar -xf demo.tar.gz -C /tmp
14 ssh user@host /tmp/bin/demo start
15 fi
Install Script

7. 1 #! /usr/bin/env
2
3 V=$(grep 'version' mix.exs | cut -d'"' -f2)
4
5 cd ~/demo
6 MIX_ENV=prod mix deps.get --only prod
7 MIX_ENV=prod compile
8 MIX_ENV=prod mix release --env=prod --upgrade
9 scp ./releases/${V}/demo.tar.gz user@host:/tmp/releases/${V}
10 ssh user@host /tmp/bin/demo upgrade ${VERSION}
Upgrade Script

8. FROM elixir:1.5.2
ENV APP_NAME /web
EXPOSE 4000
...
RUN mix deps.get
RUN cd $APP_NAME/assets && npm install && node
$APP_NAME/assets/node_modules/brunch/bin/brunch build
RUN MIX_ENV=prod mix release.init
RUN MIX_ENV=prod mix release
CMD MIX_ENV=prod _build/prod/rel/web/bin/web foreground
Docker/Kubernetes

9. 104.131.48.219 CI Node
104.131.65.78 Production Node
http://104.131.65.78:4000
Demo Time

10. ?