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
100
一起玩 Helm 3
Johnlin
November 30, 2020
Tweet
Share
More Decks by Johnlin
See All by Johnlin
用 MLIR 實作 一個 Ruby IR (intermediate representation)
johnlinvc
0
63
Unearth Ruby builtin Gems 發掘 Ruby 的內建 Gems
johnlinvc
0
210
Ruby 型別檢查工具簡介
johnlinvc
0
410
Swift Actor 實作探索
johnlinvc
0
140
用 mruby 來寫跨平台工具
johnlinvc
0
60
Actor model 簡介
johnlinvc
0
160
為什麼 App 卡卡的
johnlinvc
2
1.1k
如何使用 byebug 來除錯 Ruby 程式
johnlinvc
0
170
Life of a Cell
johnlinvc
0
1.4k
Other Decks in Programming
See All in Programming
Amazon Nova Reelの可能性
hideg
0
190
ErdMap: Thinking about a map for Rails applications
makicamel
1
570
php-conference-japan-2024
tasuku43
0
430
Rubyでつくるパケットキャプチャツール
ydah
0
160
ドメインイベント増えすぎ問題
h0r15h0
2
560
ecspresso, ecschedule, lambroll を PipeCDプラグインとして動かしてみた (プロトタイプ) / Running ecspresso, ecschedule, and lambroll as PipeCD Plugins (prototype)
tkikuc
2
1.7k
AHC041解説
terryu16
0
330
『改訂新版 良いコード/悪いコードで学ぶ設計入門』活用方法−爆速でスキルアップする!効果的な学習アプローチ / effective-learning-of-good-code
minodriven
28
4k
BEエンジニアがFEの業務をできるようになるまでにやったこと
yoshida_ryushin
0
190
return文におけるstd::moveについて
onihusube
1
1.4k
ATDDで素早く安定した デリバリを実現しよう!
tonnsama
1
1.8k
月刊 競技プログラミングをお仕事に役立てるには
terryu16
1
1.2k
Featured
See All Featured
No one is an island. Learnings from fostering a developers community.
thoeni
19
3.1k
A Philosophy of Restraint
colly
203
16k
GraphQLの誤解/rethinking-graphql
sonatard
68
10k
Practical Orchestrator
shlominoach
186
10k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
226
22k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
Why Our Code Smells
bkeepers
PRO
335
57k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
192
16k
RailsConf 2023
tenderlove
29
970
Code Review Best Practice
trishagee
65
17k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
49k
How STYLIGHT went responsive
nonsquared
96
5.3k
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