Docker and K8s

Docker

Docker

When to use?

• Version Control for for entire app's operating system
• Distribute your dev environment
• CI/CD
• Multiple phases of development(dev/prod/test) ?

Who use Docker in prod?

• 新浪微博
• 唯品会
• 京东
• ...

Docker

Something you need to know

• Engine
• Compose
• Swarm
• Machine
• Registry

Docker Engine

Docker Engine is Docker

Docker Compose

version: '2'
services:
  web:
    build: .
    ports:
    - "5000:5000"
    volumes:
    - .:/code
    - logvolume01:/var/log
    links:
    - redis
  redis:
    image: redis
volumes:
  logvolume01: {}

Defining and running multi-container Docker applications

Docker Swarm

Native clustering for Docker

Docker Machine

Provisioning and managing your Dockerized hosts

Docker Registry

Stateless, highly scalable server side application that stores and lets you distribute Docker images

Docker Community

• https://community.docker.com
• http://dockone.io/

Around Docker

• Docker + Minecraft = Dockercraft
• ​Continuous Delivery platform built on Docker, written in Go
• Docker build wrapper
• Make VM run like Docker

Kubernetes

• Open source project released by Google
• Borg is the predecessor

基于容器的公有云产品

• 网易蜂巢
• DaoCloud
• Alauda
• CaiCloud
• 数人云
• ...

Kubernetes

Kubernetes

Kubernetes

Kubernetes

Kubernetes

Kubernetes

Advantages

• Active
• Released by Google
• Beautiful abstraction
• Ease to use

Problems

• Not production ready, 100-1000 nodes
• Need to change (k8s-mesos)

Others

Others