基础概念
- Images（镜像）：Docker可以通过Pull和Push命令构建对象到服务中心
- Containers（容器）：Docker可以通过Start/Stop命令管理容器的生命周期
- Logging（日志）：Docker可以通过stdout，stderro捕获输出所有的容器内部信息
- Volumes（存储）：Docker可以创建和管理容器的相关文件存储
- Networking（网络）：Docker可以创建管理虚拟的接口和内部所有容器之间的网络桥接
- RPC：Docker服务器提供允许外部程序去控制所有容器的行为的API
配置加速器
配置：
$ curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sudo sh -s http://12248bc3.m.daocloud.io
安装
参考：https://docs.docker.com/engine/installation/
入门：http://tuxknight-notes.readthedocs.io/en/latest/docker/docker_command.html
笔记：https://blog.phpgao.com/docker-note1.html#%E6%9E%84%E5%BB%BA%E9%95%9C%E5%83%8F
$ curl -sSL https://get.daocloud.io/docker | sh
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:
sudo usermod -aG docker zhanghe
Remember that you will have to log out and back in for this to take effect!
检查 docker 守护进程状态
$ sudo service docker status
docker start/running, process 1650
获取当前 docker 版本
$ sudo docker version
Client:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built: Thu Aug 18 05:22:43 2016
OS/Arch: linux/amd64
Server:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built: Thu Aug 18 05:22:43 2016
OS/Arch: linux/amd64
查看当前 docker 信息
$ sudo docker info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 1.12.1
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 0
Dirperm1 Supported: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: host null bridge overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Security Options: apparmor
Kernel Version: 3.13.0-97-generic
Operating System: Ubuntu 14.04.5 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 7.756 GiB
Name: ThinkPad-L421
ID: XACY:MKNQ:Q7Q7:7JBI:JH3W:GISV:DIZO:QS7U:ERD2:XQHB:5JRK:3NCW
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
Insecure Registries:
127.0.0.0/8
搜索可用 docker 镜像
$ sudo docker search ubuntu
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Ubuntu is a Debian-based Linux operating s... 4758 [OK]
ubuntu-upstart Upstart is an event-based replacement for ... 66 [OK]
rastasheep/ubuntu-sshd Dockerized SSH service, built on top of of... 42 [OK]
ubuntu-debootstrap debootstrap --variant=minbase --components... 27 [OK]
torusware/speedus-ubuntu Always updated official Ubuntu docker imag... 27 [OK]
nickistre/ubuntu-lamp LAMP server on Ubuntu 9 [OK]
nuagebec/ubuntu Simple always updated Ubuntu docker images... 8 [OK]
nickistre/ubuntu-lamp-wordpress LAMP on Ubuntu with wp-cli installed 6 [OK]
nimmis/ubuntu This is a docker images different LTS vers... 5 [OK]
maxexcloo/ubuntu Base image built on Ubuntu with init, Supe... 2 [OK]
darksheer/ubuntu Base Ubuntu Image -- Updated hourly 1 [OK]
admiringworm/ubuntu Base ubuntu images based on the official u... 1 [OK]
jordi/ubuntu Ubuntu Base Image 1 [OK]
datenbetrieb/ubuntu custom flavor of the official ubuntu base ... 0 [OK]
lynxtp/ubuntu https://github.com/lynxtp/docker-ubuntu 0 [OK]
webhippie/ubuntu Docker images for ubuntu 0 [OK]
life360/ubuntu Ubuntu is a Debian-based Linux operating s... 0 [OK]
esycat/ubuntu Ubuntu LTS 0 [OK]
widerplan/ubuntu Our basic Ubuntu images. 0 [OK]
teamrock/ubuntu TeamRock's Ubuntu image configured with AW... 0 [OK]
ustclug/ubuntu ubuntu image for docker with USTC mirror 0 [OK]
konstruktoid/ubuntu Ubuntu base image 0 [OK]
dorapro/ubuntu ubuntu image 0 [OK]
uvatbc/ubuntu Ubuntu images with unprivileged user 0 [OK]
gopex/ubuntu Automatic build of GoPex customization ove... 0 [OK]
下载 ubuntu 官方镜像
$ sudo docker pull ubuntu
下载中
Using default tag: latest
latest: Pulling from library/ubuntu
ff1f1f1de862: Downloading [===========================> ] 27.43 MB/49.79 MB
0c7b035e2a1a: Download complete
ac8ee255ff41: Download complete
bf3d47be55f8: Download complete
22a909724a97: Download complete
下载完成
Using default tag: latest
latest: Pulling from library/ubuntu
ff1f1f1de862: Pull complete
0c7b035e2a1a: Pull complete
ac8ee255ff41: Pull complete
bf3d47be55f8: Pull complete
22a909724a97: Pull complete
Digest: sha256:3235a49037919e99696d97df8d8a230717272d848ee4ddadbca8d54f97ee30cb
Status: Downloaded newer image for ubuntu:latest
查看当前镜像列表
$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest 45bc58500fa3 6 days ago 126.9 MB
hello-world latest c54a2cc56cbb 12 weeks ago 1.848 kB
显示所有容器
$ sudo docker ps # 显示状态为运行中（Up）的
$ sudo docker ps -a # 显示所有容器,包括运行中（Up）的和退出的(Exited)
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
accbcfa5e2e6 hello-world "/hello" 15 hours ago Exited (0) 15 hours ago angry_bhabha
删除容器
$ sudo docker rm angry_bhabha
删除镜像
$ sudo docker rmi hello-world
删除所有正在运行的容器
$ sudo docker kill $(docker ps -a -q)
删除所有已经停止的容器
$ sudo docker rm $(docker ps -a -q)
删除所有镜像
$ sudo docker rmi $(docker images -q)
构建镜像
sudo docker build --rm=true -t zh/redis .
sudo docker build --rm=true -t zh/redis -f redis.dockerfile