华为云安装docker

华为云安装docker

最近搞了台华为云服务器，系统为CentOS8.2，然后想要先装个docker，这里简单记录下过程

1.网上方法

1.卸载系统之前可能安装的 docker（防止冲突）

卸载系统之前可能安装的 docker（防止版本不一致，发生冲突）

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

2、安装 Docker-CE 基本环境

安装必须的依赖

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

这一步出了问题，无法解析host

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CentOS Linux 8 - AppStream                                                                                                 0.0  B/s |   0  B     00:00
Errors during downloading metadata for repository 'appstream':
  - Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org]
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org]

问题出现的原因是因为 CentOS Linux 8已于 2021年12月31日停止更新和维护，由于CentOS 团队从官方镜像中移除CentOS 8的所有包，所以在使用yum源安装或更新会报上述失败错误。（参考https://blog.csdn.net/lxcw_sir/article/details/140185068）

解决办法：

进入仓库源文件夹下
cd /etc/yum.repos.d/
修改镜像配置内容
sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
清空原有缓存，并重新生成
yum clean all && yum makecache
更新软件包
yum update -y

接着设置 docker repo 的 yum 位置

sudo yum-config-manager \ 
--add-repo \ 
https://download.docker.com/linux/centos/docker-ce.repo

安装 docker，以及 docker-cli

sudo yum install docker-ce docker-ce-cli containerd.io

这一步无法安装，总是显示超时

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Docker CE Stable - x86_64                                                                                                  0.0  B/s |   0  B     01:30
Errors during downloading metadata for repository 'docker-ce-stable':
  - Curl error (28): Timeout was reached for https://download.docker.com/linux/centos/8/x86_64/stable/repodata/repomd.xml [Connection timed out after 30000 milliseconds]
  - Curl error (28): Timeout was reached for https://download.docker.com/linux/centos/8/x86_64/stable/repodata/repomd.xml [Operation timed out after 30000 milliseconds with 0 out of 0 bytes received]
  - Curl error (35): SSL connect error for https://download.docker.com/linux/centos/8/x86_64/stable/repodata/repomd.xml [OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to download.docker.com:443 ]
Error: Failed to download metadata for repo 'docker-ce-stable': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

实在没辙，结果一搜，发现华为云官网给出了安装docker方法，赶紧尝试一番

2.官网方法

1.添加yum源。

yum install epel-release -y
yum clean all

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2.安装yum-util。

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

这里我之前安装成功了，但是重新安装时显示超时，不过都安装过了就没有问题了

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3.设置docker yum源。

yum-config-manager --add-repo https://mirrors.huaweicloud.com/docker-ce/linux/centos/docker-ce.repo
sed -i 's+download.docker.com+mirrors.huaweicloud.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo

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4.安装并运行Docker。

yum -y install docker-ce
systemctl enable docker
systemctl start docker

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5.检查安装结果。

docker --version

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posted on 2024-10-29 18:22  跳河离去的鱼  阅读(5)  评论(0)  编辑  收藏  举报