Ubuntu安装docker
官方文档 推荐使用docker自己的apt源,不使用Ubuntu自带的docker源。
Ubuntu自带docker包卸载
sudo apt-get remove docker docker-engine docker.io containerd runc
更新系统 安装辅助工具
sudo apt-get update
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg \
lsb-release
添加docker官方的GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
添加docker源
x86_64 源
echo \
"deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
arm64源
echo \
"deb [arch=arm64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
从官方源安装docker
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
helloworld测试
sudo docker run hello-world
错误解决
不明原因的情况下遇到下面的错误:
Err:2 https://download.docker.com/linux/ubuntu focal InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7EA0A9C3F273FCD8
解决办法,不用key文件的方式
$ sudo rm /usr/share/keyrings/docker-archive-keyring.gpg
$ curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
$ sudo vim /etc/apt/sources.list.d/docker.list
deb [arch=arm64] https://download.docker.com/linux/ubuntu focal stable
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