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
Configuration Management Camp 2015
Search
someara
February 03, 2015
Technology
1
500
Configuration Management Camp 2015
Ghent Belgium
someara
February 03, 2015
Tweet
Share
More Decks by someara
See All by someara
Docker Docker Docker Chef
someara
0
410
Hand Crafted Artisinal Chef Resources
someara
0
520
Cookbook Reusability
someara
0
560
TDI with ChefDK 0.0.1
someara
2
630
Configuration Management 101 @ Scale12x
someara
2
800
Configuration Management 101
someara
3
700
Introduction to Chef - Scale 10x
someara
2
410
Introduction to Chef - NYLUG Jan 2012
someara
2
260
Introduction to Chef - LISA11
someara
10
6.1k
Other Decks in Technology
See All in Technology
タイミーのデータ活用を支えるdbt Cloud導入とこれから
ttccddtoki
1
300
ゼロからわかる!!AWSの構成図を書いてみようワークショップ 問題&解答解説 #デッカイギ #羽田デッカイギおつ
_mossann_t
0
1.6k
KMP with Crashlytics
sansantech
PRO
0
250
0→1事業こそPMは営業すべし / pmconf #落選お披露目 / PM should do sales in zero to one
roki_n_
PRO
1
1.6k
JuliaTokaiとJuliaLangJaの紹介 for NGK2025S
antimon2
1
130
Azureの開発で辛いところ
re3turn
0
240
re:Invent2024 KeynoteのAmazon Q Developer考察
yusukeshimizu
1
150
VPC Block Public AccessとCloudFrontVPCオリジンによって何が変わるのか?
hatahata021
2
100
2024AWSで個人的にアツかったアップデート
nagisa53
1
110
Oracle Exadata Database Service(Dedicated Infrastructure):サービス概要のご紹介
oracle4engineer
PRO
0
12k
メールヘッダーを見てみよう
hinono
0
120
生成AI × 旅行 LLMを活用した旅行プラン生成・チャットボット
kominet_ava
0
160
Featured
See All Featured
The World Runs on Bad Software
bkeepers
PRO
66
11k
Typedesign – Prime Four
hannesfritz
40
2.5k
We Have a Design System, Now What?
morganepeng
51
7.3k
Keith and Marios Guide to Fast Websites
keithpitt
410
22k
Faster Mobile Websites
deanohume
305
30k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
52k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
39
1.9k
Mobile First: as difficult as doing things right
swwweet
222
9k
Rebuilding a faster, lazier Slack
samanthasiow
79
8.8k
A Modern Web Designer's Workflow
chriscoyier
693
190k
Scaling GitHub
holman
459
140k
Designing on Purpose - Digital PM Summit 2013
jponch
116
7.1k
Transcript
Chef Reusability! Config Management Camp! Ghent, Belgium! February 2015
Sean OMeara!
[email protected]
! @someara
whoami
Part 1
Things that are true
New Chef users expect community cookbooks to just work
Especially the Chef maintained cookbooks
This is not the current state of things
This leads to sadness
We must repair it
People copy patterns
The status quo cannot be allowed to continue
Common pain points https://www.flickr.com/photos/kwl/4595324641
Platform and version support
Weak scoping
No standard interface
Compilation phase work
Needing chef-rewind
Attributes and precedence
Pattern proliferation
The path out of the darkness https://www.flickr.com/photos/71267357@N06/15864687537
Change how cookbooks are written
systems beliefs! behaviors
Standardize interfaces
Eliminate the pain points
Focus on resources
Make it super easy! to write resources
Ship resources for ALL THE THINGS
Copy better patterns
Make it fucking delightful
None
Part 2
Simple design patterns https://www.flickr.com/photos/pollock/4172865252
None
None
You just separated data from code
You also just built an interface
Complex design patterns https://www.flickr.com/photos/alanosaur/6417040565
None
None
This is where things get weird
amazon debian-6 debian-7 ubuntu-10.04 ubuntu-12.04 ubuntu-14.04 centos-5 centos-6 centos-7 freebsd-9
freebsd-10
Debconf! Docker! LaunchD! Runit! SMF! Simple! SystemD! Sysvinit! Upstart! Windows
Services
There is a large amount of variation between software versions
There is an insane amount variation across platforms
These differences need to be handled somewhere
Early techniques did everything in the recipe
data resource pattern
Later techniques focused on isolation
Resource pattern isolation
None
private recipes by convention
Resource data isolation
None
None
We now have decision logic in our interface
Default values often need to be computed
Doing this in the interface leads to sorrow
None
We need a better way
Consumption Patterns https://www.flickr.com/photos/ektogamat/2578779839
None
None
None
None
Why resources are best https://www.flickr.com/photos/cross_stitch_ninja/4932950637
node attributes roles environments databags are nice to haves
They drive data about resources
Resources are fundamental
Resources are strongly scoped
Resources have a standardized interface
Resources have types, names, and parameters
Type
Name
Parameters
Resources have identities
None
Resource can see each other
Promise to talk
Promise to listen
Resource behave the same across platforms
None
None
None
Resource can have multiple providers
None
Writing simple resources
yum
</switches github>
Writing complex resources
mysql httpd
</switches github>
fin