docker 笔记(1)

zhaoke0727

docker 笔记(1) -- 安装


Ubuntu 14.04




一段关系无解，不是任何人的错，那么我们就把悲伤藏在心底。微笑着，说再见。



参考
　　菜鸟教程 -- docker




前提条件

　　docker 要求 Ubuntu 系统的内核版本高于 3.10

root@pinsily:~# uname -r
4.4.0-79-generic




使用脚本安装 Docker



1. 获取最新版本的 Docker 安装包


root@pinsily:~# wget -qO- https://get.docker.com/ | sh
　　开始下载脚本并且安装 Docker 及依赖包



# Executing docker install script, commit: 490beaa
+ sh -c apt-get update -qq >/dev/null
+ sh -c apt-get install -y -qq apt-transport-https ca-certificates curl software-properties-common >/dev/null
+ sh -c curl -fsSL "https://download.docker.com/linux/ubuntu/gpg" | apt-key add -qq - >/dev/null
+ sh -c echo "deb [arch=amd64] https://download.docker.com/linux/ubuntu trusty edge" > /etc/apt/sources.list.d/docker.list
+ [ ubuntu = debian ]
+ sh -c apt-get update -qq >/dev/null
+ sh -c apt-get install -y -qq docker-ce >/dev/null
+ sh -c docker version
Client:
Version:      17.10.0-ce
API version:  1.33
Go version:   go1.8.3
Git commit:   f4ffd25
Built:        Tue Oct 17 19:04:40 2017
OS/Arch:      linux/amd64
Server:
Version:      17.10.0-ce
API version:  1.33 (minimum version 1.12)
Go version:   go1.8.3
Git commit:   f4ffd25
Built:        Tue Oct 17 19:03:20 2017
OS/Arch:      linux/amd64
Experimental: false

　　后面还有一段提示


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 your-user
Remember that you will have to log out and back in for this to take effect!
　　如果是非 root 用户的话，就需要留意这条信息，在启动 docker 时需要先执行命令，your-user是当前用户名


sudo usermod -aG docker your-user



2. 启动docker 后台服务


root@pinsily:~# service docker start



3. 测试运行


root@pinsily:~# docker run hello-world
　　因为本地没有这个 hello-world 的镜像，所以它会自动从远程库 Docker Hub  中下载


Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
5b0f327be733: Pull complete
Digest: sha256:07d5f7800dfe37b8c2196c7b1c524c33808ce2e0f74e7aa00e603295ca9a0972
Status: Downloaded newer image for hello-world:latest
　　下面是测试的结果


Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://cloud.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/

　　docker 的安装还是挺容易的，做一下简单的记录就行