docker introduction
TRANSCRIPT
Docker Introduction
ChengWei @ 得寬科技內部訓練
!
Cheng Wei Chen !
DevOps @ 得寬科技
Virtual Machine Docker
Virtual Machine Docker
LXC
Virtual Machine Docker
佔用容量：大 佔用容量：小
啟動速度：慢 啟動速度：快
不負責任的並帶有偏見的比較法！小孩子不要學！
host可支撐數量 數個～數十個
host可支撐數量 數個～數百個
VMs vs Docker
‧Portability — Software packaged in containers can be moved and deployed more easily than a full Virtual Machine image
‧Startup speed — VMs need to boot the guest OS before they can do anything else. Containers start running your software almost instantly
‧Flexible composition — Containers are best used when each process in your stack runs in its own container, making it easier to compose flexible and robust platforms instead of monolithic servers
VMs vs Docker
From: What containers can do for you
圖片來自《Docker從入門到實踐》正體中文版 (https://www.gitbook.com/book/philipzheng/docker_practice/details)
圖片來自《Docker從入門到實踐》正體中文版 (https://www.gitbook.com/book/philipzheng/docker_practice/details)
映像檔
容器
倉庫
Dockerfile
http://gliderlabs.com/blog/2015/04/14/docker-events-explained/
Docker events
development!
Docker
Container
Container
Container
Container
!
Docker hub
Image
Image
Image
Image
!
Registry
commit, ship!
Docker
Container
Container
Container
Container
Image
Image
Image
Image
!
Registry
ship, run!
Staging
Container
Container
Container
Container
Image
Image
Image
Image
!
Registry
ship, run!
Production
Container
Container
Container
Container
Image
Image
Image
Image
!
Registry
Hybrid Cloud!
AWS
Container Image
!
GCE
Container
!
VPS
Container
Version Control!
Registry!
Testing
passed
failed
failed
passed
Image v1.0
Image v1.5
Image v1.9
Image v2.1
Version Control!
Registry!
Production
php 5.5
php 5.3
failed
passed
嘗試升級 卻程式異常
隨時重建舊版架構
Version Control!
Production!
Project (old)
Nginx
Mysql
php-fpm
!Project (new)
Nginx
Mysql
php-fpm
Redis
beanstalkd
elasticsearch5.2
5.5
1.4
5.5
5.7
1.7
more…‧Docker introduction
‧Are VM Passé?
‧Why Docker
‧Docker at Shopify: How we built containers that power over 100,000 online shops
Q & A
ChengWei @ 得寬科技內部訓練