老是报错 “Error response from daemon: Get “https://registry-1.docker.io/v2/”: proxyconnect tcp: dial tcp 127.0.0.1:7890: connect: connection refused” ，不知道是什么原因，卸载了重装一下。
彻底卸载
sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-compose-plugin
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd
sudo rm -rf /etc/docker/
sudo apt-get purge docker.io
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd
sudo rm -rf /etc/systemd/docker.service.d/
sudo find /var -name docker* |xargs sudo rm -rf
安装
sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
apt-key fingerprint 0EBFCD88
sudo find /var -name docker* |xargs sudo rm -rf
sudo apt-get install ca-certificates curl gnupg lsb-release
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/dockerarchive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get install docker-ce docker-ce-cli containerd.io其中
$apt-key fingerprint 0EBFCD88
pub rsa4096 2017-02-22 [SCEA]9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
uid [ 未知 ] Docker Release (CE deb) <docker@docker.com>
sub rsa4096 2017-02-22 [S]查看版本
$docker --version
Docker version 26.1.1, build 4cf5afa
设置自定义镜像
sudo vim /etc/docker/daemon.json
填入：
{
"registry-mirrors":[
"https://hub-mirror.c.163.com",
"https://docker.mirrors.ustc.edu.cn",
"https://registry.docker-cn.com"
]
}
重启docker
sudo systemctl daemon-reload
sudo systemctl restart docker
测试
$ sudo docker pull ollama/ollama
Using default tag: latest
latest: Pulling from ollama/ollama
3c645031de29: Pull complete
c7a573924959: Pull complete
0dd8ec5df93a: Pull complete
Digest: sha256:6f2f92bd0f3b2785f1d211552fd20de78b5a5b88eea2ba131e1ec2cd2bf36a33
Status: Downloaded newer image for ollama/ollama:latest
docker.io/ollama/ollama:latest
