Harold Giménez @hgmnz Wednesday, September 17, 14

WHAT DO YOU EXPECT TO LEARN TODAY? Wednesday, September 17, 14

CONTENT • What is Heroku? • What are dynos and how do I manage them? • Procfile • Logs • HTTP routing • Releases, rollback and pipelines • Postgres and Addons • Buildpacks • Where to learn more Wednesday, September 17, 14

WHAT IS HEROKU? Database Enterprise grade Postgres as a service ! Add-ons Marketplace for logging, data and more ! Dynos Run virtually any language at any scale ! Wednesday, September 17, 14

WHAT IS HEROKU? 5 Billion Requests per day ! 3+ Million Apps Created ! 125+ Add-on Services ! Wednesday, September 17, 14

Wednesday, September 17, 14

LET’S TRY IT RIGHT NOW Wednesday, September 17, 14

SET UP • Create a Heroku account: https://signup.heroku.com/ • Download the toolbelt: https://toolbelt.heroku.com • Install git Wednesday, September 17, 14

SIGN IN $ heroku login Wednesday, September 17, 14

PUSH YOUR FIRST APP $ mkdir first-app $ cd first-app $ git init $ echo "Hello! It’s = date('D, d M Y H:i:s'); ?>." > index.php $ git add . && git commit -m "First commit" $ heroku create first-app-$(whoami) $ git push heroku master $ heroku open Wednesday, September 17, 14

WHAT JUST HAPPENED? Wednesday, September 17, 14

DIGGING DEEPER Wednesday, September 17, 14

DYNOS Wednesday, September 17, 14

$ heroku ps === web (1X): `vendor/bin/heroku-php-apache2` web.1: up 2014/09/15 18:46:21 (~ 44m ago) $ heroku ps:scale web=2 Scaling dynos... done, now running web at 2:1X. Wednesday, September 17, 14

PROCFILE $ cat Procfile web: ./bin/web worker: ./bin/worker $ # on heroku $ heroku ps:scale worker=50 web=10 $ # locally, use foreman $ foreman run Wednesday, September 17, 14

LOGS $ heroku logs --tail 2014-09-16T13:23:17.174042+00:00 heroku[router]: at=info method=GET path="/" host=hgmnz-pgopen.herokuapp.com request_id=5135b624-7d01-4ef9-842c-055d58157325 fwd="142.177.69.102" dyno=web.1 connect=2ms service=9ms status=200 bytes=580 Use a logging addon for searchable log storage Wednesday, September 17, 14

HTTP ROUTING The `web` process gets HTTP traffic on $PORT Wednesday, September 17, 14

CONFIG $ heroku config hgmnz-pgopen has no config vars. $ heroku config:set WEB_PASSWORD=s3krit Setting config vars and restarting hgmnz-pgopen... done, v6 WEB_PASSWORD: s3krit $ heroku config === hgmnz-pgopen Config Vars WEB_PASSWORD: s3krit Wednesday, September 17, 14

RELEASES $ heroku releases === hgmnz-pgopen Releases v6 Set WEB_PASSWORD config vars [email protected] 2014/09/16 09:57:56 (~ 1m ago) v5 Deploy 2d97a3e [email protected] 2014/09/15 18:46:10 (~ 15h ago) v4 Deploy 754b51d [email protected] 2014/09/15 18:43:36 (~ 15h ago) v3 Deploy d9528ae [email protected] 2014/09/15 18:37:15 (~ 15h ago) v2 Enable Logplex [email protected] 2014/09/15 18:36:21 (~ 15h ago) v1 Initial release [email protected] 2014/09/15 18:36:20 (~ 15h ago) Wednesday, September 17, 14

ROLLBACK! $ heroku logs --tail [exception traces everywhere!] $ heroku ps === web (1X): `vendor/bin/heroku-php-apache2` web.1: crashed 2014/09/16 07:42:55 (~ 1m ago) $ heroku releases:rollback v3 Rolling back hgmnz-pgopen... done, v3 $ heroku releases | head -n2 === hgmnz-pgopen Releases v7 Rollback to v3 [email protected] 2014/09/16 10:10:06 (~ 37s ago) Wednesday, September 17, 14

PIPELINES $ heroku labs:enable pipelines $ heroku plugins:install git://github.com/heroku/heroku-pipeline.git $ heroku pipeline:add your-app-production --app your-app-staging $ heroku pipelines Pipeline: your-app-staging ---> your-app-production $ heroku pipeline:diff Comparing your-app-staging to your-app-production...done, your-app- staging ahead by 1 commit: 73ab415 2012-01-01 A super important fix (Jim) $ heroku pipeline:promote Promoting myapp-staging to myapp...done, v2 Wednesday, September 17, 14

ADDONS Easily add managed infrastructure services to your heroku app addons.heroku.com $ heroku addons:add addon-name Adding addon-name on test-app... done, v425 (free) Wednesday, September 17, 14

HEROKU POSTGRES • Implemented as a heroku addon • Fully managed • Visibility through log events and web frontend • Various plan levels • Continuous Protection, forks, followers, HA with automated failover, rollback (PiTR), logical backups (pg_dump), encryption at rest Wednesday, September 17, 14

HEROKU POSTGRES $ heroku addons:add heroku-postgresql:standard-0 Adding heroku-postgresql:standard-0 on hgmnz-pgopen... done, v9 ($50) Attached as HEROKU_POSTGRESQL_GRAY_URL Use `heroku addons:docs heroku-postgresql` to view documentation. $ heroku pg:psql GRAY $ heroku pg:info $ heroku pg:diagnose Wednesday, September 17, 14

CREATE FOLLOWERS $ heroku addons:add heroku-postgresql:standard-0 --follow=gray Adding heroku-postgresql:standard-0 on hgmnz-pgopen... done, v23 ($50/mo) Attached as HEROKU_POSTGRESQL_BLUE_URL Follower will become available for read-only queries when up-to-date Use `heroku pg:wait` to track status. Use `heroku addons:docs heroku-postgresql` to view documentation. Wednesday, September 17, 14

AND FORKS $ heroku addons:add heroku-postgresql:standard-0 --fork=rose Adding heroku-postgresql:standard-0 on hgmnz-pgopen... done, v24 ($50/mo) Attached as HEROKU_POSTGRESQL_OLIVE_URL Database will become available after it completes forking Use `heroku pg:wait` to track status. Use `heroku addons:docs heroku-postgresql` to view documentation. Wednesday, September 17, 14

HEROKU PG EXTRAS $ heroku plugins:install git://github.com/heroku/heroku-pg-extras.git $ heroku pg:index-usage $ heroku pg:unused-indexes $ heroku pg:cache-hit $ heroku pg:ps $ heroku pg:locks $ heroku pg:blocking $ heroku pg:outliers $ heroku pg:pull $ heroku pg:push $ heroku pg:index-size $ heroku pg:table-size $ heroku pg:seq-scans $ heroku pg:long-running-queries $ heroku pg:bloat $ heroku pg:vacuum-stats Wednesday, September 17, 14

BUILDPACKS • Installs runtime dependencies, like language VMs • All official buildpacks are open source • Auto-detected by Heroku, but can be customized by setting BUILDPACK_URL config var. Wednesday, September 17, 14

CREATING BUILDPACKS • API: https://devcenter.heroku.com/articles/buildpack-api • Three scripts • bin/detect: whether to apply buildpack to app • bin/compile: perform transformations on the app • bin/release: provide metadata back to runtime Wednesday, September 17, 14

BUILDPACKS • Official buildpacks: https://devcenter.heroku.com/articles/ buildpacks#default-buildpacks • Third party: https://devcenter.heroku.com/articles/third-party- buildpacks • Run many buildpacks on same app with the multi buildpack: https://github.com/ddollar/heroku-buildpack-multi Wednesday, September 17, 14

THANKS! https://devcenter.heroku.com https://heroku.com Wednesday, September 17, 14