Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Spotlight on CoreOS

Avatar for Martin Smith Martin Smith
March 18, 2015
Technology
350
0

Spotlight on CoreOS

A quick overview of CoreOS, and some quick highlights of what it can do.

Avatar for Martin Smith

Martin Smith

March 18, 2015

More Decks by Martin Smith

See All by Martin Smith
How HashiCorp SREs Built HCP's Incident Management Program
Avatar for Martin Smith martinb3
0
82
Writing & Maintaining an Open Source Backup Tool in Python on AWS
Avatar for Martin Smith martinb3
0
370
DevOps & Remote Work in Gainesville
Avatar for Martin Smith martinb3
0
440
Reaping the rewards of Remote Friendly DevOps
Avatar for Martin Smith martinb3
2
380
Cooking Up Elasticsearch with Chef at elastic{on}
Avatar for Martin Smith martinb3
0
410
Going Serverless with AWS Lambda
Avatar for Martin Smith martinb3
1
620
Little Brother is Watching Your Live Stream
Avatar for Martin Smith martinb3
0
380
What is the Chef Development Kit
Avatar for Martin Smith martinb3
0
460
Elasticsearch for Centralized Logging, Fulltext Search, and NoSQL
Avatar for Martin Smith martinb3
0
350

Other Decks in Technology

See All in Technology
AI Agent に“攻略本”を渡したら、150フォームの移行が回り始めた話/登壇資料（高橋 悟生）
Avatar for Hacobu hacobu
PRO
1
330
Claude Code x Accounting
Avatar for Yasunobu Kawaguchi kawaguti
PRO
0
290
GitHub Copilot CLI の Rubber Duck 機能を使ってコーディングの品質をあげよう #techbaton_findy
Avatar for すてにゃん stefafafan
2
600
TSKaigi 2026 - 10秒のビルドを1秒へ：tsdownが切り拓く2026年のTypeScriptライブラリ開発
Avatar for teamLab teamlab
PRO
1
160
TypeScriptとAngular Signal で実現する保守性の高いアプリケーション設計 - 3層アーキテクチャによる責務分離の実践（たつかわ） https://2026.tskaigi.org/talks/10
Avatar for Nealle nealle
1
230
基礎から解説！Icebergで紐解くSnowflake×Databricks連携の現在地
Avatar for TomokiYasuhara cm_yasuhara
0
200
コーディングAIが導くリスクベースド探索的テストの実践
Avatar for LINEヤフーTech (LY Corporation Tech) lycorptech_jp
PRO
1
300
LT準備のToilを削減 〜決定論×確率論のスライド生成CLI〜
Avatar for Shu Kobuchi shukob
0
120
その英語学習、AWSで代替できませんか？
Avatar for Tatsuya suzutatsu
1
210
大規模環境でどのように監視を実現する？
Avatar for Yuto Obayashi yuobayashi
1
120
権限管理設計を完全に理解した
Avatar for r-sugi rsugi
1
180
The Making of AI Chips
Avatar for Preferred Networks pfn
PRO
0
690

Featured

See All Featured
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
Avatar for Dr. Kim W Petersen kimpetersen
PRO
0
330
Six Lessons from altMBA
Avatar for Skipper Chong Warson skipperchong
29
4.2k
Practical Tips for Bootstrapping Information Extraction Pipelines
Avatar for Matthew Honnibal honnibal
25
1.9k
StorybookのUI Testing Handbookを読んだ
Avatar for Shingo Yamazaki zakiyama
31
6.7k
Mozcon NYC 2025: Stop Losing SEO Traffic
Avatar for Sam Torres samtorres
0
230
The B2B funnel & how to create a winning content strategy
Avatar for Katarina Dahlin katarinadahlin
PRO
1
360
Noah Learner - AI + Me: how we built a GSC Bulk Export data pipeline
Avatar for Tech SEO Connect techseoconnect
PRO
0
180
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
11
910
The Language of Interfaces
Avatar for Des Traynor destraynor
162
26k
Lessons Learnt from Crawling 1000+ Websites
Avatar for Charles Meaden charlesmeaden
PRO
1
1.2k
Building Experiences: Design Systems, User Experience, and Full Site Editing
Avatar for Michelle Schulp Hunt marktimemedia
0
510
Scaling GitHub
Avatar for Zach Holman holman
464
140k

Transcript

  1. Spotlight on CoreOS [email protected]

  2. The Datacenter as a Computer - Focus on applications -

    Design for HW failure - No maintenance windows - Commodity hardware - Warehouse scale computer

  3. CoreOS - Micro Gentoo/Chrome (Kernel + Docker/LXC/nspawn/etc) - No package

    manager, just run in containers - Intended for HA clusters - Updates are applied automagically - SystemD (incl. managing containers)

  4. Etcd - Distributed key-value store - RESTful (HTTP + JSON)

    - Service discovery via announcements - Similar to Consul or Zookeeper

  5. Fleet - Cluster-level service management - Manage etcd and systemd

    as a single init sys - Schedule a specific number of containers, reschedule units on failure, placement rules

  6. Demos! - 3 node cluster with vagrant - Demo dillinger.io

    (online markdown editor) vagrant ssh core-01 fleetctl machine-list fleetctl list-units fleetctl submit dillinger.service fleetctl start dillinger.service fleetctl journal -follow dillinger.service https://github.com/coreos/coreos-vagrant http://lukebond.ghost.io/getting-started-with-coreos- and-docker-using-vagrant/