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
Helm Chart を Unit Test する / Unit Testing Helm C...
Search
d-kuro
June 24, 2021
Programming
0
2.1k
Helm Chart を Unit Test する / Unit Testing Helm Chart
Kubernetes Meetup Tokyo #42 で発表したスライドです
https://k8sjp.connpass.com/event/214286/
d-kuro
June 24, 2021
Tweet
Share
More Decks by d-kuro
See All by d-kuro
Giftech2025春_GhostWriter
daikurosawa
0
6
kube-state-metrics Sharding
daikurosawa
0
360
Understanding CPU throttling in Kubernetes to improve application performance #k8sjp
daikurosawa
12
15k
Leader Election in Kubernetes #k8sjp
daikurosawa
5
11k
Argo CD 実践ガイド #k8sjp / Argo CD Practice Guide
daikurosawa
13
8.6k
図で理解する Descheduler #k8sjp #ymju / Introduction to Descheduler
daikurosawa
12
23k
Kubernetes のソースコードとの付き合い方 #gounco / Kubernetes source code reading
daikurosawa
24
5.3k
GolangCI を使ってコードの品質を保ちながら快適な Golang 生活を送る話 #gounco / GolangCI
daikurosawa
4
6k
Introduction gRPC
daikurosawa
1
280
Other Decks in Programming
See All in Programming
Reactの歴史を振り返る
tutinoko
1
170
CEDEC 2025 『ゲームにおけるリアルタイム通信への QUIC導入事例の紹介』
segadevtech
2
740
実践 Dev Containers × Claude Code
touyu
1
120
DynamoDBは怖くない!〜テーブル設計の勘所とテスト戦略〜
hyamazaki
0
180
JetBrainsのAI機能の紹介 #jjug
yusuke
0
180
[SRE NEXT] 複雑なシステムにおけるUser Journey SLOの導入
yakenji
1
910
大規模FlutterプロジェクトのCI実行時間を約8割削減した話
teamlab
PRO
0
440
What's new in Adaptive Android development
fornewid
0
130
PHPUnitの限界をPlaywrightで補完するテストアプローチ
yuzneri
0
380
PHPカンファレンス関西2025 基調講演
sugimotokei
6
1.1k
kiroでゲームを作ってみた
iriikeita
0
140
SwiftでMCPサーバーを作ろう!
giginet
PRO
2
220
Featured
See All Featured
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.5k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Gamification - CAS2011
davidbonilla
81
5.4k
StorybookのUI Testing Handbookを読んだ
zakiyama
30
6k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Optimizing for Happiness
mojombo
379
70k
Unsuck your backbone
ammeep
671
58k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
50
5.5k
Done Done
chrislema
185
16k
Agile that works and the tools we love
rasmusluckow
329
21k
[RailsConf 2023] Rails as a piece of cake
palkan
56
5.7k
Transcript
Chart Λ Unit Test ͢Δ Kubernetes Meetup Tokyo #42 LT
I work for @ponde_m @d-kuro
Summary • Helm Chart ͷ Test ʹ͍ͭͯ • Helm Chart
Λ Unit Test ͢ΔͨΊͷϥΠϒϥϦΛ࣮ͨ͠ • ࣮ͷৄࡉ • “k8s.io” ϥΠϒϥϦΛͬͨ Tips ͷհ
Testing Helm Charts --set autoscaling.enabled=false --set replicaCount=3
Testing Helm Charts • Helm ʹςετػߏ͕ଘࡏ͢Δ • “helm.sh/hook: test” annotation
Λ༩ͨ͠ Pod ఆٛΛ༻ҙ͢Δ • “<chart-name>/templates/tests/“ ʹஔ͢Δ • “helm install” ͨ͋͠ͱʹ “helm test” Λ࣮ߦ͢Δ • Pod ͕ exit 0 Ͱऴྃ͢Εςετ͕ޭͨ͠ͱΈͳ͞ΕΔ
None
None
Testing Helm Charts • ͜ͷςετػߏͲͪΒ͔ͱ͍͑ Integration Test • values.yaml ʹఆٛͨ͠
Option ͕ҙਤͨ͠௨Γʹػೳ͢Δ͔ Ͳ͏͔ͳͲͷ Unit Test Ϩϕϧͷ֬ೝ͕͔ͨͬͨ͠
Unit Testing Helm Charts • Go Ͱ Helm Chart Λ
Unit Test ͢Δ • “helm.sh/helm/v3” Λ import ͯ͠ “helm template” ίϚϯυͰ༻͍ͯ͠ΔؔΛݺͼग़͢ • ϨϯμϦϯά͞Εͨ YAML ͕ string Ͱ͑ΔͷͰ ͍͍ײ͡ʹൺֱ͢Δ
Unit Testing Helm Charts • ࡞ͨ͠ϥΠϒϥϦ • github.com/d-kuro/helmut • “helm
template” ίϚϯυ૬ͷॲཧΛ࣮ߦ͢ΔϥΠϒϥϦ • Assert ༻ͷؔΛఏڙ • github.com/google/go-cmp Λ༻ͨ͠ diff Λදࣔ͢Δ
None
None
None
Unit Testing Helm Charts • ྨࣅͷϥΠϒϥϦ • github.com/gruntwork-io/terratest/modules/helm • ෦Ͱ
“helm tempalte —show-only” ίϚϯυΛ࣮ߦ͍ͯ͠Δ • github.com/Waterdrips/helmunit • Helm ͷύοέʔδΛ import ͢Δಉ༷ͷΞϓϩʔν • Assert ؔͳͲͳ͍
Architecture map[ObjectKey]runtime.Object Rendered Manifests Exec helm template Render Convert Get
User
Exec helm template
None
Split Manifests
None
Convert from Raw Manifest to runtime.Object
None
Assert • ݱࡏ Contains ͔࣮͍ؔͯ͠͠ͳ͍ • Contains ؔʹ͞Εͨ Object Λ
map ͔Β Get ͯ͠ google/go-cmp Ͱൺֱͯ͠ߏମͷ diff Λදࣔ͢Δ • runtime.Object Λ͢ํ๏ͱ YAML or JSON ͷ Manifest Λ͢ํ๏ͷ 2 ͭΛఏڙ • ͢ runtime.Object ͷ TypeMeta ۭͳΒಈతʹઃఆ
TypeMeta ͷهड़͕ෆཁʹͳΔ
Get GVK from runtime.Object
None
Assert • Helm ʹΑ͘ΘΕΔ label annotation ͳͲͷ ࠩΛແࢹ͢ΔͨΊͷ
Option Λఏڙ
Omit Metadata
None
Conclude • Helm Chart Λ Unit Test ͢ΔͨΊͷϥΠϒϥϦΛ࡞ͬͨ • github.com/d-kuro/helmut
• ྑ͚Ε͍ͬͯͩ͘͞
Thank You for Listening