docker 筆記(1) -- 安裝
參考
前提條件
docker 要求 Ubuntu 系統的內核版本高於 3.10
root@pinsily:~# uname -r
4.4.0-79-generic
使用腳本安裝 Docker
1. 獲取最新版本的 Docker 安裝包
root@pinsily:~# wget -qO- https://get.docker.com/ | sh
開始下載腳本並且安裝 Docker 及依賴包
# 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
后面還有一段提示
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 用戶的話，就需要留意這條信息，在啟動 docker 時需要先執行命令，your-user是當前用戶名
sudo usermod -aG docker your-user
2. 啟動docker 后台服務
root@pinsily:~# service docker start
3. 測試運行
root@pinsily:~# docker run hello-world
因為本地沒有這個 hello-world 的鏡像，所以它會自動從遠程庫 Docker Hub 中下載
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
下面是測試的結果
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 的安裝還是挺容易的，做一下簡單的記錄就行