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
KubeCon Talk 2016- Basics of Kubernetes Service...
Search
Brandon Philips
November 08, 2016
Programming
0
540
KubeCon Talk 2016- Basics of Kubernetes Service Discovery
Demo uses
https://coreos.com/kubernetes/docs/latest/network-troubleshooting.html
Brandon Philips
November 08, 2016
Tweet
Share
More Decks by Brandon Philips
See All by Brandon Philips
Node.js Workflow with Minikube and Skaffold
philips
0
250
Manage the App on Kubernetes
philips
0
330
Production Backbone Monitoring Containerized Apps
philips
0
150
KubeCon EU 2017: Dancing on the Edge of a Volcano
philips
1
680
rkt - KubeCon EU keynote - 2017
philips
1
240
FOSDEM_Keynote_2017-_.pdf
philips
0
110
Tectonic Summit Day 2 Keynote
philips
0
320
Kubernetes: Simple to Manage Anywhere (self-hosted, Tectonic upgrade demo)
philips
0
350
KubeCon Keynote 2016- Distributed Systems Simplified on Kubernetes
philips
2
540
Other Decks in Programming
See All in Programming
「App Intent」よくわからんけどすごい!
rinngo0302
1
100
チームで開発し事業を加速するための"良い"設計の考え方 @ サポーターズCoLab 2025-07-08
agatan
1
470
AI時代のソフトウェア開発を考える(2025/07版) / Agentic Software Engineering Findy 2025-07 Edition
twada
PRO
99
37k
GPUを計算資源として使おう!
primenumber
1
250
顧客の画像データをテラバイト単位で配信する 画像サーバを WebP にした際に起こった課題と その対応策 ~継続的な取り組みを添えて~
takutakahashi
4
1.3k
Goで作る、開発・CI環境
sin392
0
260
「テストは愚直&&網羅的に書くほどよい」という誤解 / Test Smarter, Not Harder
munetoshi
0
200
Flutterで備える!Accessibility Nutrition Labels完全ガイド
yuukiw00w
0
170
ソフトウェア品質を数字で捉える技術。事業成長を支えるシステム品質の マネジメント
takuya542
2
15k
PicoRuby on Rails
makicamel
2
140
Git Sync を超える!OSS で実現する CDK Pull 型デプロイ / Deploying CDK with PipeCD in Pull-style
tkikuc
4
350
Model Pollution
hschwentner
1
160
Featured
See All Featured
Why You Should Never Use an ORM
jnunemaker
PRO
58
9.5k
A Tale of Four Properties
chriscoyier
160
23k
Building Adaptive Systems
keathley
43
2.7k
Java REST API Framework Comparison - PWX 2021
mraible
31
8.7k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
5.9k
Building an army of robots
kneath
306
45k
Side Projects
sachag
455
42k
The Art of Programming - Codeland 2020
erikaheidi
54
13k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
2.9k
Build The Right Thing And Hit Your Dates
maggiecrowley
37
2.8k
Scaling GitHub
holman
460
140k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Transcript
Brandon Philips @brandonphilips |
[email protected]
| coreos.com Kubernetes Service Discovery
Fundamentals and Extensions
90+ Projects on GitHub, 1,000+ Contributors OPEN SOURCE Secure solutions,
support plans, training + more ENTERPRISE CoreOS is Running the World’s Containers Linux
Examples minikube
- Use the quickstart tutorial - Or try out rkt
quickstart - Ensure you get kubectl work: kubectl get nodes NAME STATUS AGE minikube Ready 6m minikube
Overview Label Service Discovery
Fundamental API Server - API Server is bedrock of discovery
- Available at well-known URL - Protected by TLS and accounts
Fundamental Labels
Fundamental Labels
kubectl run nginx --image=nginx -l app=nginx kubectl get replicaset -l
app=nginx kubectl get pods -l app=nginx -w Fundamental Labels
Fundamental Labels
kubectl expose deployment nginx --port 80 --type=NodePort minikube service nginx
Fundamental Labels
Overview Above the API
- Configured statically in kubelet (--cluster-dns) - Injected into /etc/resolv.conf
of containers - Meta alert: DNS Service IP backed by Kubernetes - kubectl describe service -n kube-system kube-dns DNS Add-on
Name: kube-dns Namespace: kube-system Labels: k8s-app=kube-dns Selector: k8s-app=kube-dns Type: ClusterIP
IP: 10.0.0.10 Port: dns 53/UDP Endpoints: 10.1.0.3:53 kube-dns the service
DNS Add-on Basics API Server kube-dns Service 10.0.0.10 dig +vc
-p @10.0.0.10 kube-dns.kube-system.svc.cluster.local ;; QUESTION SECTION: ;kube-dns.kube-system.svc.cluster.local. IN A ;; ANSWER SECTION: kube-dns.kube-system.svc.cluster.local. 30 IN A 10.0.0.10
Copy/paste one-liner to forward DNS to localhost $ dig +vc
-p 5300 @127.0.0.1 cluster.local kube-dns proxy to localhost
$ dig A etcd-0000.default.cluster.local etcde-0001.default.svc.cluster.local. 30 IN A 10.0.0.40 $
dig SRV _client._tcp.etcd-0000.default.cluster.local IN SRV 10 100 2379 etcde-0001.default.svc.cluster.local. DNS Add-on - Records
$ dig A etcd-0000 IN A 10.0.0.40 $ dig A
etcd-0000.default IN A 10.0.0.40 DNS Add-on - Search
Full docs are comprehensive I helped write them :) http://kubernetes.io/docs/admin/dns/
kube-dns full docs
tectonic.com/summit - @TectonicSummit December 12 & 13 2016 - New
York City
Thank you! Brandon Philips @brandonphilips |
[email protected]
| tectonic.com We’re
hiring in all departments! Email:
[email protected]
Positions: coreos.com/ careers