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
The 12Factor App
Search
Damien Mathieu
October 30, 2014
Programming
1
970
The 12Factor App
Damien Mathieu
October 30, 2014
Tweet
Share
More Decks by Damien Mathieu
See All by Damien Mathieu
Open-source sans Burn Out ? Le modèle CNCF
dmathieu
0
33
Let's deploy on fridays
dmathieu
0
210
Building Resilient Services
dmathieu
0
140
Easily monitor your product data
dmathieu
0
49
Play with ruby threads
dmathieu
2
120
Other Decks in Programming
See All in Programming
AIを活用し、今後に備えるための技術知識 / Basic Knowledge to Utilize AI
kishida
21
5.6k
Ruby Parser progress report 2025
yui_knk
1
430
Zendeskのチケットを Amazon Bedrockで 解析した
ryokosuge
3
290
go test -json そして testing.T.Attr / Kyoto.go #63
utgwkk
3
290
さようなら Date。 ようこそTemporal! 3年間先行利用して得られた知見の共有
8beeeaaat
3
1.4k
print("Hello, World")
eddie
2
530
FindyにおけるTakumi活用と脆弱性管理のこれから
rvirus0817
0
490
Kiroで始めるAI-DLC
kaonash
2
580
250830 IaCの選定~AWS SAMのLambdaをECSに乗り換えたときの備忘録~
east_takumi
0
390
複雑なドメインに挑む.pdf
yukisakai1225
5
1.1k
Go言語での実装を通して学ぶLLMファインチューニングの仕組み / fukuokago22-llm-peft
monochromegane
0
120
パッケージ設計の黒魔術/Kyoto.go#63
lufia
3
430
Featured
See All Featured
Statistics for Hackers
jakevdp
799
220k
Automating Front-end Workflow
addyosmani
1370
200k
Faster Mobile Websites
deanohume
309
31k
The Pragmatic Product Professional
lauravandoore
36
6.9k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
33
2.4k
Measuring & Analyzing Core Web Vitals
bluesmoon
9
580
Build your cross-platform service in a week with App Engine
jlugia
231
18k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Unsuck your backbone
ammeep
671
58k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.9k
How GitHub (no longer) Works
holman
315
140k
Reflections from 52 weeks, 52 projects
jeffersonlam
352
21k
Transcript
@dmathieu Software Engineer @heroku The 12Factor App 1
Twelve Factor • Can apply to any language and platform!
• Speeds up deployment! • Makes scaling easier! • Keeps apps clean 2
Let’s take a look 3
One codebase to rule them all 4
Codebase Production Staging Feature A Feature B 5
6 Multiple codebases is a distributed system
7 Create libraries
Explicitly declare and isolate dependencies 8
9 source 'https://rubygems.org' ! ruby '2.1.3' ! gem 'rails' gem
'pg' gem 'puma'
10
11 curl imagemagick
12 Config never goes in source control
Config Resource strings to databases Credentials to S3, Facebook, Twitter,
… Security Tokens 13
$ cat .env! AWS_TOKEN=QWERTYUIOP! AWS_SECRET=12345 ! GITHUB_APP_ID=1! GITHUB_SECRET=67890 14
$ foreman run rails console! >> puts ENV[‘AWS_TOKEN’]! > “QWERTYUIOP”
15
You can use a yml config file* *Just don’t store
it in source control
Treat backing services as attached resources 17
18 DATABASE_URL= postgres://example.com:5032
Production deploy PostgreSQL Email Service Amazon S3
20 One codebase per app Explicitly declare and isolate dependencies
Don’t put config in source control Treat backing services as attached resources
Build Release Run 21
Codebase Build Run Config 22
Codebase Build Run Config 23
Execute the app as one or more stateless processes 24
web.1 web.2 Database 25
26 No sticky sessions
27 Ephemeral filesystem
28 Export services via port binding
29 Self-contained app
30 An app can be the backing service for an
other
Scale out via the process model 31
web.1 web.2 web.3 worker.1 worker.2 clock.1 32
33 You can still do your own internal multiplexing
34 Build, release, run One or more stateless processes Scale
out via the process model Export services via port binding
Maximize robustness with fast startup and graceful shutdown 35
36 Handle a request
37 60s to boot is a lot
38 Use the SIGTERM signal
39 Send jobs back to the queue
40 Build, release, run One or more stateless processes Scale
out via the process model Fast startup
Keep development, staging, and production as similar as possible 41
42 Use the same kind of machine
43 With the same OS version
44 And the same database server
Logging 45
46 Production errors will happen
47 Tail logs to find the cause
48 Then use a logging service to dig in deeper
action=create_user
[email protected]
action=log_user
[email protected]
49
count#api-call-200=1 50
Don’t write logs to a file 51
Run admin/ management tasks as one-off processes 52
53 Not in your app’s main processes
54 Run console instances the same way
55 Keep all your environments as similar as possible Run
management tasks as one-off processes Logging
Do you like? • Minimizing new developer overhead?! • Running
in multiple environments?! • Easily scaling without tooling, architecture or development headaches?! • Having the latest update available to users at a moments notice? Read more at 12factor.net 56
Questions?
[email protected]
12factor.net 57 @dmathieu