Docker配置镜像

执行docker命令，拉取镜像失败

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fufeifan@ubuntu:/etc/docker$ sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
c1ec31eb5944: Pull complete 
Digest: sha256:53cc4d415d839c98be39331c948609b659ed725170ad2ca8eb36951288f81b75
Status: Downloaded newer image for hello-world:latest

解决的步骤如下：

创建目录

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sudo mkdir -p /etc/docker

写入镜像配置

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sudo tee /etc/docker/daemon.json <<-'EOF'
{
    "registry-mirrors": [
        "https://docker.m.daocloud.io",
        "https://dockerproxy.com",
        "https://docker.mirrors.ustc.edu.cn",
        "https://docker.nju.edu.cn"
    ]
}
EOF

重启docker服务

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sudo systemctl daemon-reload
sudo systemctl restart docker
12

如果已经存在/etc/docker/daemon.json这个配置文件，手动复制下面的镜像地址加如到配置中：

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"registry-mirrors": [
        "https://docker.m.daocloud.io",
        "https://dockerproxy.com",
        "https://docker.mirrors.ustc.edu.cn",
        "https://docker.nju.edu.cn"
    ]

重启docker服务

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sudo systemctl daemon-reload
sudo systemctl restart docker

配置之后运行成功