0、安裝前準備
刪除老的版本
sudo apt-get remove docker docker-engine docker.io containerd runc
升級apt獲得最新更新
sudo apt-get update
安裝Docker允許通過HTTPS才能使用的軟件包
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-common
添加Docker’s official GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add –
sudo apt-key fingerprint 0EBFCD88
顯示：
pub rsa4096 2017-02-22 [SCEA]
9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
uid [ 未知 ] Docker Release (CE deb) <[email protected]>
sub rsa4096 2017-02-22 [S]
開始安裝
1、加入Docker源
sudo add-apt-repository \
“deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable”
【如果是19.10，則試用18.04】
sudo add-apt-repository “deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable”
sudo apt update
【另外】如果出現錯誤，sudo nano /etc/apt/sources.list，把輸入錯誤的源給註釋掉（在行的最前面加#）或者刪除掉
2、列出可用版本
apt-cache madison docker-ce
3、安裝最新版本docker
sudo apt-get install docker-ce docker-ce-cli containerd.io
【或者】安裝制定版本docker
sudo apt-get install docker-ce=<VERSION_STRING> docker-ce-cli=<VERSION_STRING> containerd.io
4、測試 Docker 是否安裝成功
sudo docker run hello-world
顯示：
Unable to find image ‘hello-world:latest’ locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:9572f7cdcee8591948c2963463447a53466950b3fc15a247fcad1917ca215a2f
Status: Downloaded newer image for hello-world:latest
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.
(amd64)
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://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
安裝完成！
5、將普通用戶加入到docker組
sudo groupadd docker
sudo gpasswd -a ${USER} docker