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
一起玩 Helm 3
Search
Johnlin
November 30, 2020
Programming
1
82
一起玩 Helm 3
Johnlin
November 30, 2020
Tweet
Share
More Decks by Johnlin
See All by Johnlin
Unearth Ruby builtin Gems 發掘 Ruby 的內建 Gems
johnlinvc
0
110
Ruby 型別檢查工具簡介
johnlinvc
0
310
Swift Actor 實作探索
johnlinvc
0
130
用 mruby 來寫跨平台工具
johnlinvc
0
49
Actor model 簡介
johnlinvc
0
120
為什麼 App 卡卡的
johnlinvc
2
1k
如何使用 byebug 來除錯 Ruby 程式
johnlinvc
0
140
Life of a Cell
johnlinvc
0
1.3k
Swift weekly 2018/09/04
johnlinvc
0
59
Other Decks in Programming
See All in Programming
StoreKit2によるiOSのアプリ内課金のリニューアル
kangnux
0
110
OpenAPIを中心に考えるAPI開発入門 / Introduction to API Development with a Focus on OpenAPI
seike460
PRO
2
170
データアナリストが行うDatabricksを活用したETLの自動化事例
shinoa
0
270
Blue/Greenデプロイの導入による 運用フローの改善
kudoas
1
370
CA.swift19 恋するAIアプリ開発の裏側
oskmr
0
360
はてなにおける CSS Modules、及び CSS Modules に足りないもの / CSS Modules in Hatena, and CSS Modules missing parts
mizdra
7
930
GitHub Copilotのススメ
marcy731
1
200
単体テストを書かない技術 #phpcon_odawara
o0h
PRO
27
8.3k
SwiftUIで使いやすいToastの作り方 / How to build a Toast system which is easy to use in SwiftUI
lovee
3
140
大規模UIKitベースアプリへのTCAの段階的導入/gradual-adoption-of-tca-in-a-large-scale-uikit-based-app
takehilo
1
170
TCAとKMPを用いた新規動画配信アプリ 「ABEMA Live」の設計
tomu28
1
100
1BRC--Nerd Sniping the Java Community
gunnarmorling
0
340
Featured
See All Featured
Gamification - CAS2011
davidbonilla
76
4.6k
The MySQL Ecosystem @ GitHub 2015
samlambert
243
12k
Imperfection Machines: The Place of Print at Facebook
scottboms
260
12k
Bootstrapping a Software Product
garrettdimon
PRO
302
110k
Keith and Marios Guide to Fast Websites
keithpitt
408
22k
Embracing the Ebb and Flow
colly
80
4.1k
The World Runs on Bad Software
bkeepers
PRO
61
6.7k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
221
21k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
244
20k
For a Future-Friendly Web
brad_frost
172
9k
Side Projects
sachag
451
41k
Making the Leap to Tech Lead
cromwellryan
124
8.5k
Transcript
Ұى؝ Helm 3 John Lin (@johnlinvc)
᮫ԙզ • John Lin • Twitter: @johnlinvc • Senior Solution
Architect, DevOps @ West Pharmaceutical
ࣾ܈׆ಈ • iplayground.io 2020 Keynote ߨऀ • Coscup, RubyConf TW,
RubyKaigi, PyCon TW ߨऀ • ओ㭎 Swift Taipei Meetup
ॄኄੋ Helm ? • > Helm is the best way
to find, share, and use software built for Kubernetes. • > Helm helps you manage Kubernetes applications — Helm Charts help you define, install, and upgrade even the most complex Kubernetes application.
Helm ೳ၏ॄኄʁ • ҆ Chart • ઃఆ Chart • Rollback
Chart • ؐ༗ߋଟ
• ؆ᄸိ㘸बੋऔ • kubectl create -f • kubectl edit Helm
ೳ၏ॄኄʁ
҆ • HomeBrew: brew install helm • Linuxɿcurl https://raw.githubusercontent.com/helm/helm/master/scripts/ get-helm-3
| bash • APT: ༗ᴍຑɼՄҎɻ
Helm ໊ࢺղᬶ • Chart • Repo • Config • Release
Chart • Helm త݅ᄸҐ • 㚎ؚ k8s resource template, default
values • ՄҎ༗ dependency • ૾ੋ rpm, deb తײ᧷
Repo • ଘ์ Chart త server • ओཁ༗ၷݸޭೳɿྻग़ Charts Լࡌ
Chart • ಉԙ apt/yum repo
Config • ์ਐ k8s resource template ཫతᆴɻ • Chart ။༗༬ઃᆴɻ
• ՄҎࡏ㑌ݸ release ཫڅෆಉతᆴɻ
Release • Ұݸӡߦதత Chartɼ૾ੋ Process తײ᧷ɻ • धཁڅଞҰݸ໊ࣈɻ • ՄҎ༗ଟݸಉ࣌ӡߦʢ
Chart ሜಘతʣ
༻ Helmɼ Ҏ Prometheus ҝྫ • Prometheus ੋҰ߇ܥ౷ɻk8s ཫେྔ༻ɻ •
https://github.com/prometheus-community/helm-charts/tree/main/charts/ prometheus •
Ճೖ Repo • repo Ճೖ local helm ɻṜᒬ࠽ೳፙ౸ chartɻ
• helm repo add prometheus-community https://prometheus- community.github.io/helm-charts • helm repo add stable https://charts.helm.sh/stable
҆ Chart • ༻ prometheus chart ҆Ұݸ release ໊ҝ demo-promɻ
• helm install demo-prom prometheus-community/prometheus
NOTES.txt • 䋯 install/upgrade ޙ။ग़ݱత㘸໌ɻ • ҰᒬՄҎ༻ templateɻॴҎ௨ৗՄҎෳష্ɻཫ໘త namespace ྨ
తҰൠိ㘸။ੋሣతɻ • export POD_NAME=$(kubectl get pods --namespace default -l "app=prometheus,component=server" -o jsonpath="{.items[0].metadata.name}") • kubectl --namespace default port-forward $POD_NAME 9090
Side Topic:HSTS • HTTP Strict Transport Security • Ұୠ༻ https
࿈աతҬɼब࠶ෆೳ༻ http ྃ... • localhost ༗࣌ީҰෆখ৺बෆೳ༻ http ྃ • ՄҎ༻ *.vcap.me ႔ཧɻ *.vcap.me Ӭԕ။ࢦ 127.0.0.1
List release • ྻग़ݱࡏ context Լతॴ༗ release • Helm list
ઃఆ Chart • ༗ၷछํࣜ • --set key1=val1 (ෆਪનɼه೭લଧաॄኄबࢮఆྃʣ • --values
values.yaml ( ՄҎ commit ਐ git )
ઃఆ Chart • values.yaml server: statefulSet: enabled: true •
ߋ৽ Chart • helm upgrade demo-prom prometheus-community/prometheus -f values.yaml
List Release History • ྻग़ release త㑖࢙ل㑚ɻ • helm history
demo-prom
Rollback Release • Rollback release ౸೭લత൛ຊɼแؚ config, chart ൛ຊɻ •
helm rollback demo-prom 1 • helm history demo-prom
႟আ release • helm uninstall demo-prom
ৗݟత • ߋ৽ޙࣗಈੜతີᛰᏓྃɿՄҎࡏ release secret ཫፙ౸ᢜతᆴɼઃఆਐ ჩᏐཫ೭ޙबෆ။Ꮣྃɻ • ৽తઃఆᔒ༗ੜᏈɿChart ᔒ༗ਖ਼֬ઃఆ
Deployment/Statefulset/ DaemonSet తߋ৽ᑍ݅ɻधཁखಈࣥߦ kubectl rollout restartɻ
Helm 2 vs Helm 3 • ᔒ༗ Tiller ɼෆधཁࡏ K8S
Cluster ཫ౦ྃɻ • औফ౷Ұ RepoɼվҝࢄࣜɻՄҎ༻ https://artifacthub.io ፙ Chartɻ • ࢦྩ໊ඍվᏓɻ fetch -> pullɻɻ • ࢧԉ༻ OCI registry ိଘ์ Chart
Helm 2 end of support • Tiller image Մೳᬋ࣌။ํଘ์ɻ •
Helm 2 client Մೳ။ํɼෆա get.helm.sh ။ಈɻ • Stable chart repo https://github.com/helm/charts ࡏ Nov 13, 2020 ਖ਼ࣜऴࢭࢧԉྃɻ
Helm vs Others • Kustomize • Operator
Helm vs Kustomize • Template vs Overlay(Patching) • Rollback •
Helm ՄҎࡏ post rendering hook ཫ໘ݺڣ Kustomize • https://github.com/thomastaylor312/advanced-helm-demos/tree/master/ post-render
Helm vs Operator • Day 1 (Helm) vs Day 2(Operator)
• ޓิɼhelm ෛ҆ ɼ Operator ෛӡ࡞ɻ • ՄҎ༻ helm chart ိ෦ॺ Operator • https://sdk.operatorframework.io/docs/building-operators/helm/ quickstart/
መ • ෆཁ༻ chart ɼఆٛࣗݾత chart ɼ࠶֎෦త chart ఆٛҝ dependencyɻᙛ༻
configmap/secret ိ၏ઃఆ࣌࠽ํศɻ • ༻ helmfile + helm secrets plugin ိ၏ GitOpsɼҰଘ์ࡏ Git ཫɻ • ળ༻ helm త plugin ܥ౷ɼՄҎఏڙڐଟֹ֎తޭೳɻ
ະ᠃ • ։ᚙࣗݾత Helm Chart • ༻ helmfile • ։ᚙࣗݾత
Helm Plugin
Q&A • Twitter: @johnlinvc • Өยࡏ https://bit.ly/39pcPiM • We're
hiring DevOps @ West Pharma, Deploying to hybrid cloud with K8Sɻ