Heroku at BattleHack Venice 2015

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HEROKU IN FIVE MINUTES BattleHack Venice 2015

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Platform-as-a-Service

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FAST AND EASY DEPLOYS Sync from Dropbox, GitHub, or the code on your computer.

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Demo

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FORKING APPS $ heroku fork -‐-‐from sourceapp -‐-‐to targetapp Creating fork targetapp... done Copying slug... done Adding heroku-‐postgresql:dev... done Creating database backup from sourcapp... .. done Restoring database backup to targetapp... .. done Copying config vars... done Fork complete, view it at http://targetapp.herokuapp.com/

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“The Twelve-Factor App”

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12factor.net

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II. DEPENDENCIES Applications have explicitly declared dependencies.

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II. DEPENDENCIES Applications have explicitly declared dependencies. $ cat composer.json { "require": { "php": ">=5.3.3", "ext-‐mcrypt": "*", "symfony/symfony": "~2.4.6", "twig/extensions": "~1.0", "symfony/monolog-‐bundle": "~2.4" } } $ cat package.json { "dependencies": { "express": "~4.9.x", "cool-‐ascii-‐faces": "~1.3.x" }, "engines": { "node": "0.10.x" } }

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do not check your dependencies into Git

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III. CONFIGURATION Store conﬁg in the environment.

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III. CONFIGURATION Store conﬁg in the environment. Assumption: same code but different conﬁguration per deployment target

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III. CONFIGURATION Store conﬁg in the environment. $smtp = parse_url(getenv('SMTP_GATEWAY_URL')); $transport = Swift_SmtpTransport::newInstance(  $smtp['host'], $smtp['port']  )  -‐>setUsername($smtp['user'])  -‐>setPassword($smtp['pass'])  ; Assumption: same code but different conﬁguration per deployment target $ heroku config:set SMTP_GATEWAY_URL=\ smtp://joecool:itwasadarkandstormynight@smtp.blah.com:827

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do not hardcode conﬁg vars, they might change suddenly!

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VI. PROCESSES heroku-‐python-‐app $ cat Procfile worker: python worker.py web: gunicorn hello:app heroku-‐node-‐app $ cat Procfile worker: node worker.js web: node index.js heroku-‐ruby-‐app $ cat Procfile worker: env TERM_CHILD=1 bundle exec rake resque:work web: bundle exec unicorn -‐p $PORT -‐c ./config/unicorn.rb heroku-‐php-‐app $ cat Procfile worker: php background.php web: vendor/bin/heroku-‐php-‐apache2 # or heroku-‐php-‐nginx

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SCALING

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SCALING $ heroku ps:scale web=5 Scaling dynos... done, now running web at 5:1X. $ heroku ps === web (1X): `bundle exec unicorn -‐p $PORT` web.1: starting 2014/11/05 20:36:39 (~ 4s ago) web.2: starting 2014/11/05 20:36:39 (~ 4s ago) web.3: starting 2014/11/05 20:36:39 (~ 4s ago) web.4: starting 2014/11/05 20:36:38 (~ 4s ago) web.5: starting 2014/11/05 20:36:38 (~ 4s ago) === worker (Free): `bundle exec stalk worker.rb` worker.1: up for 1m $ heroku ps:scale web=1 Scaling dynos... done, now running web at 1:1X.

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Demo

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ADD-ONS

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your app needs a relational database

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your app needs a document database

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your app needs an email gateway

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your app needs a search engine

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your app needs an analytics engine

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your app needs a log storage

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your app needs... add-ons!

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$ heroku addons:create heroku-‐postgresql

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$ heroku addons:create heroku-‐redis

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$ heroku addons:create mongolab

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$ heroku addons:create memcachier

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$ heroku addons:create foundelasticsearch

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$ heroku addons:create cloudamqp

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$ heroku addons:create papertrail

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$ heroku addons:create newrelic

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$ heroku addons:create sendgrid

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$ heroku addons:create pusher

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150+ ADD-ONS, USE THEM! http://elements.heroku.com/

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Demo

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GOOD LUCK!

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xkcd.com/323

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The End

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THANK YOU FOR LISTENING! Questions? Ask me: @dzuelke & dz@heroku.com