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
Kubernetes & Helm Tech Talk
Search
vincentdesmet
March 09, 2017
Programming
1
550
Kubernetes & Helm Tech Talk
Tech Talk about Kubernetes and Helm
vincentdesmet
March 09, 2017
Tweet
Share
More Decks by vincentdesmet
See All by vincentdesmet
KubeDay Singapore 2023 - recap
so0k
0
110
CDK and Kubernetes: A Match Made in the Cloud
so0k
0
190
Integrate This!
so0k
0
180
Kubernetes clusters with Terraform / Terragrunt and Kops
so0k
1
320
Why we use Kubernetes at my company
so0k
0
73
Ingress at Swatmobile
so0k
0
150
Kubernetes Security Challenges
so0k
0
160
How Honestbee does CI/CD on Kubernetes - Voxxed Days Singapore 2018
so0k
0
220
Terraform at Honestbee
so0k
0
330
Other Decks in Programming
See All in Programming
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
3
850
iOS開発スターターキットの作り方
akidon0000
0
240
CLI ツールを Go ライブラリ として再実装する理由 / Why reimplement a CLI tool as a Go library
ktr_0731
3
1.1k
SwiftでMCPサーバーを作ろう!
giginet
PRO
2
240
0から始めるモジュラーモノリス-クリーンなモノリスを目指して
sushi0120
0
280
STUNMESH-go: Wireguard NAT穿隧工具的源起與介紹
tjjh89017
0
360
Android 15以上でPDFのテキスト検索を爆速開発!
tonionagauzzi
0
200
202507_ADKで始めるエージェント開発の基本 〜デモを通じて紹介〜(奥田りさ)The Basics of Agent Development with ADK — A Demo-Focused Introduction
risatube
PRO
6
1.4k
あのころの iPod を どうにか再生させたい
orumin
2
2.4k
Flutterと Vibe Coding で個人開発!
hyshu
1
250
新しいモバイルアプリ勉強会(仮)について
uetyo
1
250
Constant integer division faster than compiler-generated code
herumi
2
600
Featured
See All Featured
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
A designer walks into a library…
pauljervisheath
207
24k
The Cult of Friendly URLs
andyhume
79
6.5k
A Tale of Four Properties
chriscoyier
160
23k
We Have a Design System, Now What?
morganepeng
53
7.7k
What's in a price? How to price your products and services
michaelherold
246
12k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Statistics for Hackers
jakevdp
799
220k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
29
9.6k
For a Future-Friendly Web
brad_frost
179
9.9k
Building Better People: How to give real-time feedback that sticks.
wjessup
367
19k
Transcript
Managing Kubernetes Deployments with Helm Vincent De Smet
Overview - Kubernetes - Concepts - Challenges - Helm -
Introduction - Templating
Kubernetes Concepts & Challenges
Linux Host CONTAINERS Container foo rails server -b 0.0.0.0 usr/src/app/
├── Gemfile ├── Gemfile.lock ├── Rakefile ├── app │ ├── api │ └── ... └── bins / libs ...
BUILD, SHIP, RUN
PODS & VOLUMES Container Foo Container Bar Namespaces: - Net
- IPC - … volumes
PODS & VOLUMES volumes
LABELS app : my-app role : master track: stable
LABELS app : my-app role : master track: stable app
: my-app role : worker track: stable app : my-app role : worker track: canary app : my-app role : master track: canary
SELECTORS app : my-app app : my-app role : master
track: stable app : my-app role : worker track: stable app : my-app role : worker track: canary app : my-app role : master track: canary
SELECTORS app : my-app role : worker app : my-app
role : master track: stable app : my-app role : worker track: stable app : my-app role : worker track: canary app : my-app role : master track: canary
SELECTORS app : my-app track: canary app : my-app role
: master track: stable app : my-app role : worker track: stable app : my-app role : worker track: canary app : my-app role : master track: canary
CONTROL LOOPS Desired state Actual state pods: - foo -
bar pods: - foo
CONTROL LOOPS Desired state Actual state pods: - foo -
bar pods: - foo create “bar” Create
CONTROL LOOPS Desired state Actual state pods: - foo -
bar pods: - foo - bar
REPLICA SETS + Replica Set: - replicas: 1 - selector:
- app: my-app - version: 1.0 - Desired State: - Pod Specification - Replica Count - Label Selector
REPLICA SETS + Replica Set: - replicas: 2 - selector:
- app: my-app - version: 1.0
REPLICA SETS + Replica Set: - replicas: 4 - selector:
- app: my-app - version: 1.0
SERVICES Service: - nodePort: 30128 - selector: - app: my-app
- version: 1.0 - de-couple discovery from application - Define how to access pods - Act as a proxy (Virtual IP - stable for DNS) Think of: - Dynamic Routing Table
CANARIES + Replica Set: - replicas: 2 - selector: -
app: my-app - version: 1.0 Service: - nodePort: 30128 - selector: - app: my-app + Replica Set: - replicas: 1 - selector: - app: my-app - version: canary Think of: - Partially live the new version
DEPLOYMENTS Service: - nodePort: 30128 - selector: - app: my-app
+ Replica Set: - replicas: 2 - selector: - app: my-app - version: 1.0 + - Manage updates with Deployment resources
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ Replica Set: - replicas: 4 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 1 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 4 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 1 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 3 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 2 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 3 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 2 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 2 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 3 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 2 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ + Replica Set: - replicas: 3 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 1 - selector: - app: my-app - version: 1.0 + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ Replica Set: - replicas: 4 - selector: - app: my-app - version: 2.0 Replica Set: - replicas: 1 - selector: - app: my-app - version: 1.0 + + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ Replica Set: - replicas: 4 - selector: - app: my-app - Version: 2.0 Replica Set: - replicas: 0 - selector: - app: my-app - version: 1.0 + + Deployment: - strategy: - rollingUpdate
UPDATES Service: - nodePort: 30128 - selector: - app: my-app
+ Replica Set: - replicas: 4 - selector: - app: my-app - Version: 2.0 + Deployment: - strategy: - rollingUpdate
CONFIGMAPS Service: - nodePort: 30128 - selector: - app: my-app
+ + Deployment: - strategy: - rollingUpdate ConfigMap: - sample.yaml: | env: production cache: true max_threads: 8
SECRETS Service: - nodePort: 30128 - selector: - app: my-app
+ + Deployment: - strategy: - rollingUpdate Secret: - sample.yaml: | key: *** db_user: *** db_pw: ***
Recap - Multiple resource types - Deployments - Services -
ConfigMaps - Secrets - … - Serializable Manifests (store as yaml) Managing these bundles is a challenge in the long run!
Challenges 1. Collaboration a. Sharing Manifest files, trust? b. Iterating
c. Best Practices 2. Managing Releases a. Define package b. Tweaking ~ Multiple copies & variations c. Migrating
Helm Introduction & Templating
Helm: Package Manager - Collaboration with Google, Bitnami, Deis and
others - Deis/Helm -> Kubernetes/Helm - Architecture: - Client: Helm - Server: Tiller - This talk: - Focused on writing charts
Helm core values - Aim for the Apt/Yum/Homebrew UX -
Ensure collaboration - Reproducible releases - Shareable Packages
Chart, Repositories, Releases - Chart: “Package”, “Bundle” - Repository: Package
Repository Evolving towards a registry (CoreOS) - Release: Installed Chart (same chart can be installed multiple times)
Basic Architecture Client - Server
Usage
Writing Charts - Templating and Release Management - More templating
and User notes - Debugging and Troubleshooting features
Templating & Release Management workshop available
Review using helm - Install charts (creates a release) -
helm install - List releases - helm ls - - Bootstrap charts - helm create
More features - Upgrade Releases - helm upgrade <release> -
Search Charts - helm search - KubeApps.com (Monocular - https://github.com/helm/monocular) - Manage Chart dependencies - requirements.yaml - helm dep up - Helm Plugins - Keybase: helm keybase sign/verify - GitHub: helm github push
More info Kubecon talk
Thank you!
Future? - Advanced orchestration (AppController)
Shipping, Deploying & Service Discovery