Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
12 Factor App
Search
Craig Kerstiens
June 28, 2012
Programming
12
1.1k
12 Factor App
12 Factor Application talk given at Cloud East
Craig Kerstiens
June 28, 2012
Tweet
Share
More Decks by Craig Kerstiens
See All by Craig Kerstiens
Product planning w/ gridding - Effort vs. Impact rule of thirds
craigkerstiens
0
320
Five sharding data models and which is right? PGDay Nordic
craigkerstiens
0
200
Postgres at any scale
craigkerstiens
1
860
Five data models for sharding and which is right
craigkerstiens
0
150
Postgres Performance for Humans - All things Open
craigkerstiens
1
320
Postgres Performance for Humans - PyCaribbean
craigkerstiens
1
160
Postgres present and future
craigkerstiens
1
350
Marketing for Developers
craigkerstiens
0
250
Postgres – A Data Platform
craigkerstiens
2
480
Other Decks in Programming
See All in Programming
(Extension DC 2025) Actor境界を越える技術
teamhimeh
1
220
クラシルを支える技術と組織
rakutek
0
190
CSC305 Lecture 04
javiergs
PRO
0
250
Go言語の特性を活かした公式MCP SDKの設計
hond0413
1
180
uniqueパッケージの内部実装を支えるweak pointerの話
magavel
0
920
そのpreloadは必要?見過ごされたpreloadが技術的負債として爆発した日
mugitti9
2
3k
Back to the Future: Let me tell you about the ACP protocol
terhechte
0
130
CSC509 Lecture 06
javiergs
PRO
0
240
SpecKitでどこまでできる? コストはどれくらい?
leveragestech
0
530
明日から始めるリファクタリング
ryounasso
0
120
猫と暮らすネットワークカメラ生活🐈 ~Vision frameworkでペットを愛でよう~ / iOSDC Japan 2025
yutailang0119
0
220
Web Components で実現する Hotwire とフロントエンドフレームワークの橋渡し / Bridging with Web Components
da1chi
3
1.9k
Featured
See All Featured
Writing Fast Ruby
sferik
629
62k
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
soudai
PRO
188
55k
Producing Creativity
orderedlist
PRO
347
40k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Building an army of robots
kneath
306
46k
GitHub's CSS Performance
jonrohan
1032
460k
Raft: Consensus for Rubyists
vanstee
139
7.1k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
140
34k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
36
2.5k
VelocityConf: Rendering Performance Case Studies
addyosmani
332
24k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
30
2.9k
RailsConf 2023
tenderlove
30
1.2k
Transcript
12 Factor App
Craig Kerstiens @craigkerstiens work at @heroku
First Some History
Where We’ve Been Version Control | Dependency Management | Build
Release
Where We’ve Been Version Control | Dependency Management | Build
Release Folders
Where We’ve Been Version Control | Dependency Management | Build
Release Folders SVN,Perforce,Source Safe
Where We’ve Been Version Control | Dependency Management | Build
Release Folders SVN,Perforce,Source Safe Git,Mercurial
Version Control | Dependency Management | Build Release Now
Version Control | Dependency Management | Build Release Now 1
Code base Many deploys
Version Control | Dependency Management | Build Release Now 1
Code base Many deploys
Version Control | Dependency Management | Build Release Now 1
Code base Many deploys
Version Control | Dependency Management | Build Release Where We’ve
Been
Version Control | Dependency Management | Build Release Where We’ve
Been $ python setup.py install $ ruby setup.rb install
Version Control | Dependency Management | Build Release Where We’ve
Been $ python setup.py install $ ruby setup.rb install $ INSTALL FROM SOURCE
Version Control | Dependency Management | Build Release Now
Version Control | Dependency Management | Build Release $ pip
install -r requirements.txt $ bundle install Now
Version Control | Dependency Management | Build Release $ pip
install -r requirements.txt $ bundle install Now $ INSTALL PINNED VERSIONS
Version Control | Dependency Management | Build Release Where We’ve
Been
$ rsync myproject tomyserver Version Control | Dependency Management |
Build Release Where We’ve Been
Version Control | Dependency Management | Build Release Now
Version Control | Dependency Management | Build Release Now
Version Control | Dependency Management | Build Release Now
Enough History
12 Factor
Declarative Setup - Minimize Setup Time 12 Factor
Declarative Setup - Minimize Setup Time Clean Contracts - Portability
12 Factor
Declarative Setup - Minimize Setup Time Clean Contracts - Portability
Deploy Practices - Cloud and horizontal scaling 12 Factor
Declarative Setup - Minimize Setup Time Clean Contracts - Portability
Deploy Practices - Cloud and horizontal scaling Minimize Divergence - Continuous Deployment 12 Factor
Dev-Prod Parity Dev Prod Parity | Config | Concurrency |
Backing Services | Logs
dev Dev-Prod Parity Dev Prod Parity | Config | Concurrency
| Backing Services | Logs
dev = staging Dev-Prod Parity Dev Prod Parity | Config
| Concurrency | Backing Services | Logs
dev = staging = prod Dev-Prod Parity Dev Prod Parity
| Config | Concurrency | Backing Services | Logs
dev = staging = prod sqlite postgres postgres Dev-Prod Parity
Dev Prod Parity | Config | Concurrency | Backing Services | Logs
dev = staging = prod sqlite postgres postgres Dev-Prod Parity
Dev Prod Parity | Config | Concurrency | Backing Services | Logs ≠ ≠
dev = staging = prod sqlite postgres postgres postgres =
postgres = postgres Dev-Prod Parity Dev Prod Parity | Config | Concurrency | Backing Services | Logs ≠ ≠
Config Dev Prod Parity | Config | Concurrency | Backing
Services | Logs
Config var server=”servername” var username=”username” var password=”password” var dbname =
“dname” Dev Prod Parity | Config | Concurrency | Backing Services | Logs
Config Dev Prod Parity | Config | Concurrency | Backing
Services | Logs
Config (External to your code) Dev Prod Parity | Config
| Concurrency | Backing Services | Logs
Config (External to your code) var server=ENV[‘server’] var username=ENV[‘username’] var
password=ENV[‘password’] var dbname = ENV[‘dbname’] Dev Prod Parity | Config | Concurrency | Backing Services | Logs
Processes Dev Prod Parity | Config | Concurrency | Backing
Services | Logs
web.1 Processes Dev Prod Parity | Config | Concurrency |
Backing Services | Logs
web.1 web.2 Processes Dev Prod Parity | Config | Concurrency
| Backing Services | Logs
web.1 web.2 Scale Processes Dev Prod Parity | Config |
Concurrency | Backing Services | Logs
web.1 web.2 worker.1 clock.1 Workload Diversity Scale Processes Dev Prod
Parity | Config | Concurrency | Backing Services | Logs
web.1 web.2 worker.1 worker.2 worker.3 worker.4 clock.1 Workload Diversity Scale
Processes Dev Prod Parity | Config | Concurrency | Backing Services | Logs
Backing Services Dev Prod Parity | Config | Concurrency |
Backing Services | Logs
Backing Services Dev Prod Parity | Config | Concurrency |
Backing Services | Logs Stateless Processes
Backing Services Dev Prod Parity | Config | Concurrency |
Backing Services | Logs Stateless Processes External Config
Backing Services Dev Prod Parity | Config | Concurrency |
Backing Services | Logs Stateless Processes External Config DATABASE_URL=postgres://username:pass@host/db MEMCACHE_URL=username:pass@host/db
Logs Dev Prod Parity | Config | Concurrency | Backing
Services | Logs
How we use logs $ ssh tomyserver $ cat access_log
Logs Dev Prod Parity | Config | Concurrency | Backing Services | Logs
How we use logs $ ssh tomyserver $ cat access_log
How we perceive logs $ tail -f access_log Logs Dev Prod Parity | Config | Concurrency | Backing Services | Logs
Logs Dev Prod Parity | Config | Concurrency | Backing
Services | Logs
DB Logs Dev Prod Parity | Config | Concurrency |
Backing Services | Logs
DB Web Logs Dev Prod Parity | Config | Concurrency
| Backing Services | Logs
DB Web Worker Logs Dev Prod Parity | Config |
Concurrency | Backing Services | Logs
Event Stream DB Web Worker Logs Dev Prod Parity |
Config | Concurrency | Backing Services | Logs
Event Stream 2012-02-22T19:56:40+00:00 [postgres]: .... 2012-02-22T19:56:40+00:00 [router]: GET mysite.com/ ...
2012-02-22T19:56:40+00:00 [nginx]: .... 2012-02-22T19:56:40+00:00 [worker]: .... DB Web Worker Logs Dev Prod Parity | Config | Concurrency | Backing Services | Logs
12 Factor
Declarative Setup Clean Contracts Deploy Practices Minimize Divergence 12 Factor
Fin. Resources http://craigkerstiens.com http://speakerdeck.com/u/craigkerstiens http://www.12factor.net