Docker

安裝

Debian

• # sh -c "echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
• # apt-get update
• # apt-get install lxc-docker

Docker on i386

Building Docker from source on the Raspberry Pi | Byte Outa Life

指令

• # docker run tianon/debian uname -a
• 
  
• # docker run -i -t tianon/debian /bin/bash
  • -i interactive
  • -t like a terminal

• # docker run -p 80:80 myweb /usr/sbin/apache2 -D
  • -p port 對應 host:guest

持久資料保存

• # docker run -d -p 3306:3306 -v /data/mysql:/var/lib/mysql mysql
  • -v 指定 volume

Detach

• [Ctrl]+p, [Ctrl]+q

Attach

• # docker attach <container-id>

保存 docker 變動

• # docker commit <container-id> <name>

檢視 docker 行程

• # docker ps -a

結束 docker 行程

• # docker kill <container-id>

刪除 docker container

• # docker rm <dontainer-id>

刪除所有 docker container

• # docker rm `docker ps -notrunc -a -q`
  • -q only show numeric IDs
  • -notrunc Don’t truncate output

檢視 docker image

• # docker images

刪除 docker image

• # docker rmi <image>

備份

• # docker export <container-id> > ubuntu.tar

還原

• # cat ubuntu.tar | docker import - my-ubuntu

指令 - 小進階

# docker inspect CONTAINER|IMAGE [CONTAINER|IMAGE...]

# docker inspect --format=’{{.NetworkSettings.IPAddress}}’ $INSTANCE_ID

# sudo docker commit -run=’{"Cmd": ["cat", "/world"], "PortSpecs": ["22"]}’

Dockerfile

$ vi Dockerfile

• FROM ubuntu
• 
  
• RUN apt-get update
• RUN apt-get insatll -y git-core
• 
  
• RUN git clone xxxx
• 
  
• CMD python bottle-sample/app.py

# docker build -t myimage .

Dockerfile tutorial

官方 build server

auto build Docker images from Github

個人 dockerfile

Carl

tsaikd

啓動設定

預設 docker 路徑

• # vi /etc/default/docker
• DOCKER_OPTS="-g /var/lib/docker"

延伸連結

progrium/dokku - Docker powered mini-Heroku in around 100 lines of Bash

Flynn - The product that ops provides to developers

Continuous Integration · drone.io

CD - Strider Brilliant Continuous Deployment

coreos/etcd - A highly-available key value store for shared configuration and service discovery

coreos/fleet - A Distributed init System

Slimming down Docker containers | Intercity Blog

Docker Registry or How to Run your own Private Docker Image Repository | codecentric Blogcodecentric Blog

Link via an Ambassador Container - Docker Documentation

Resin.io  Presentation Slides from LNUG - Resin.io allows you to ’git push’ to  your hardware devices. We cross-compile your code in the cloud, turn it  to a Docker container, and ship it!