【学习笔记】【SpringCloud】安装 Docker_springclound 中安装docker 容器-优快云博客

yum remove docker \
    docker-client \
    docker-client-latest \
    docker-common \
    docker-latest \
    docker-latest-logrotate \
    docker-logrotate \
    docker-engine \
    docker-selinux

二、配置Docker的yum库

1. 首先要安装一个yum工具

sudo yum install -y yum-utils device-mapper-persistent-data lvm2

安装yum工具，可能出现以下错误：Could not retrieve mirrorlist

Loaded plugins: fastestmirror, langpacks

Loading mirror speeds from cached hostfile

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"

【解决方案：设置为阿里云镜像】

1. 先备份当前数据源

[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2. 从阿里云镜像中下载新的 CentOS-Base.repo 到 /etc/yum.repos.d/

[root@localhost ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

3. 清理yum下载的软件包和缓存。

注意，谨慎使用，防止删除有用的软件包！！！

[root@localhost ~]# yum clean all

4. 生成缓存

[root@localhost ~]# yum makecache

5. 解决完上面问题后再次执行安装yum工具命令

[root@localhost ~]# yum install -y yum-utils device-mapper-persistent-data lvm2

2. 安装成功后，执行命令，配置Docker的yum源（已更新为阿里云源）：

[root@localhost ~]# sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

[root@localhost ~]# sudo sed -i 's+download.docker.com+mirrors.aliyun.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo

3. 更新yum，建立缓存

[root@localhost ~]# sudo yum makecache fast

三、安装Docker

最后，执行命令，安装Docker

yum install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

四、启动和校验

# 启动Docker
systemctl start docker

# 停止Docker
systemctl stop docker

# 重启
systemctl restart docker

# 设置开机自启
systemctl enable docker

# 执行docker ps命令，如果不报错，说明安装启动成功
docker ps

五、配置镜像加速

镜像地址可能会变更，如果失效可以百度找最新的docker镜像。

配置镜像步骤如下：

# 创建目录
mkdir -p /etc/docker

# 复制内容
tee /etc/docker/daemon.json <<EOF
{
  "registry-mirrors": [
    "https://dockerpull.org",
    "https://docker.1panel.dev",
    "https://docker.foreverlink.love",
    "https://docker.fxxk.dedyn.io",
    "https://docker.xn--6oq72ry9d5zx.cn",
    "https://docker.zhai.cm",
    "https://docker.5z5f.com",
    "https://a.ussh.net",
    "https://docker.cloudlayer.icu",
    "https://hub.littlediary.cn",
    "https://hub.crdz.gq",
    "https://docker.unsee.tech",
    "https://docker.kejilion.pro",
    "https://registry.dockermirror.com",
    "https://hub.rat.dev",
    "https://dhub.kubesre.xyz",
    "https://docker.nastool.de",
    "https://docker.udayun.com",
    "https://docker.rainbond.cc",
    "https://hub.geekery.cn",
    "https://docker.1panelproxy.com",
    "https://atomhub.openatom.cn",
    "https://docker.m.daocloud.io",
    "https://docker.1ms.run",
    "https://docker.linkedbus.com"
  ]
}
EOF

# 重新加载配置
systemctl daemon-reload

# 重启Docker
systemctl restart docker