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
Write Kubernetes CustomController in Go
Search
moricho
December 04, 2019
Programming
1
200
Write Kubernetes CustomController in Go
moricho
December 04, 2019
Tweet
Share
More Decks by moricho
See All by moricho
Enhance Kubernetes Security with Gatekeeper
moricho
3
1k
Deep Dive into Runtime Shim
moricho
3
2.1k
Recap: Zero Trust Service Mesh with Calico, SPIRE, and Envoy
moricho
1
1.1k
gVisorで実現するこれからのコンテナセキュリティ
moricho
6
5k
Deep dive into sync.Pool
moricho
2
1.2k
Other Decks in Programming
See All in Programming
Building, Deploying, and Monitoring Ruby Web Applications with Falcon (Kaigi on Rails 2025)
ioquatix
4
2.5k
alien-signals と自作 OSS で実現する フレームワーク非依存な ロジック共通化の探求 / Exploring Framework-Agnostic Logic Sharing with alien-signals and Custom OSS
aoseyuu
2
640
Leading Effective Engineering Teams in the AI Era
addyosmani
7
620
他言語経験者が Golangci-lint を最初のコーディングメンターにした話 / How Golangci-lint Became My First Coding Mentor: A Story from a Polyglot Programmer
uma31
0
420
GC25 Recap: The Code You Reviewed is Not the Code You Built / #newt_gophercon_tour
mazrean
0
110
AI駆動で0→1をやって見えた光と伸びしろ
passion0102
1
840
Six and a half ridiculous things to do with Quarkus
hollycummins
0
210
CSC509 Lecture 08
javiergs
PRO
0
250
When Dependencies Fail: Building Antifragile Applications in a Fragile World
selcukusta
0
110
AI Agent 時代的開發者生存指南
eddie
4
2.1k
「ちょっと古いから」って避けてた技術書、今だからこそ読もう
mottyzzz
12
7.2k
Claude Agent SDK を使ってみよう
hyshu
0
1.4k
Featured
See All Featured
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Imperfection Machines: The Place of Print at Facebook
scottboms
269
13k
Making Projects Easy
brettharned
120
6.4k
Git: the NoSQL Database
bkeepers
PRO
431
66k
Embracing the Ebb and Flow
colly
88
4.9k
Building an army of robots
kneath
305
46k
Code Review Best Practice
trishagee
72
19k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
249
1.3M
The Power of CSS Pseudo Elements
geoffreycrofte
80
6k
Designing for Performance
lara
610
69k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.7k
How to Ace a Technical Interview
jacobian
280
24k
Transcript
Write Kubernetes CustomController in Go golang.tokyo #28 Dec.4
None
OVERVIEW golang.tokyo #28 Dec.4 ɾk8sͷ༻ޠͷ͓͞Β͍ ɾcontroller-runtimeΛ࣮ͬͨ ɾk8sͷControllerͱʁ
k8sͷ͓͞Β͍ ɾPod : ϫʔΫϩʔυͷ࠷খ୯Ґ ex. Goίϯςφ(API) + fluentdίϯςφ(logging) ɾReplicaSet :
͋ΔPodͷू߹
k8sͷControllerͱʁ k8sManifest(yaml)Ͱ·͍͠ঢ়ଶΛએݴ => ͦͷঢ়ଶΛҡ࣋͠ଓ͚Δ ref) Operator Basic in CNDK2019 -
speakerdeck
k8sͷControllerͱʁ
k8sͷControllerͱʁ
k8sͷControllerͱʁ
k8sͷControllerͱʁ k8s෦Ͱ͜ͷॲཧΛ ܁Γฦ͍ͯ͠Δ => ͋Δ͖ঢ়ଶͱ ɹ ݱࡏͷঢ়ଶΛ߹ΘͤΔ
CustomController controllerࣗલͰ࡞Δ͜ͱͰ͖Δ => ͦΕ͕CustomController kubernetes-sigs/controller-runtime ͱ͍͏ϥΠϒϥϦ͕ఏڙ͞Ε͍ͯΔ
controller-runtimeΛ ࣮ͬͨ ࠓճͷαϯϓϧɿ ReplicaSet͕࡞͞ΕͨΒɺ ͦͷཧԼͷίϯςφ໊Λදࣔ͢Δ ίϯτϩʔϥʔ
controller-runtimeΛ ࣮ͬͨ (controller.go) ͲͷϦιʔεΛऔಘͯ͠ɺͲ͏͍͏ॲཧΛ࣮ߦ͢Δ͔ ɾ Reconciler ɾ
controller-runtimeΛ ࣮ͬͨ (controller.go) Namespace, Ϧιʔε(ReplicaSet)Λࢦఆͯ͠ɺ ϦιʔεͷใΛऔಘɺίϯςφ໊Λग़ྗ ɾ
controller-runtimeΛ ࣮ͬͨ (main.go) ControllerΛੜ ɾ ઌ΄Ͳఆٛͨ͠ReconcilerΛࢦఆ ɾ
controller-runtimeΛ ࣮ͬͨ (main.go) ɾࢦఆͨ͠ϦιʔεΛControllerͰࢹ ɾ ɾReplicaSetʹߋ৽͕͋ͬͨΒɺઌ΄ͲͷॲཧΛ࣮ߦ
controller-runtimeΛ ࣮ͬͨ ReplicaSetΛ࡞ͨ͠Βɺ ͦͷཧԼͷίϯςφͷ໊લ͕ දࣔ͞Εͨ 70ߦ͘Β͍Ͱ؆୯ʹॻ͚ͨ
࣮༻తͳControllerΛ࡞͍͖͍ͬͯͨ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ