Docker安装篇(CentOS7安装)

冷不防 2023-06-25 03:21 5阅读 0赞

本文记录下在CentOS7上安装docker的过程

# 1.首先确认版本 #

首先确认我们的环境是centOS7

cat /etc/redhat-release

![在这里插入图片描述][20191225135702450.png]

# 2.yum安装gcc相关 #

前提是能上外网，上篇文章介绍了相关的网络配置，不清楚的key参考下。

yum -y install gcc gcc-c++

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# 3.卸载旧的版本 #

防止其他版本的干扰，我们先执行删除旧版本的命令

yum -y remove docker docker-common docker-selinux docker-engine

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# 4.安装需要的软件包 #

我们还需要一些必须的软件环境，如下安装即可

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

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 2]

# 5.设置stable镜像仓库 #

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

# 6.更新yum软件包索引 #

yum makecache fast

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# 7.安装docker CE #

ce是官方提供的免费版，也足够我们学习使用了。

yum -y install docker-ce

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# 8.启动docker #

systemctl start docker

# 9.测试 #

查看docker的版本

docker version

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hello-world案例

docker run hello-world

![在这里插入图片描述][20191225140712136.png]

因为我们是直接访问的 docker hub而该服务器又是在国外，所以访问会很慢，所以我们需要配置对应的镜像加速。我们在此处选择 阿里云的镜像加速

# 10.阿里云镜像加速 #

我们可以通过淘宝账号或者支付宝账号来登录阿里云服务。  
访问地址:http://dev.aliyun.com/search.html

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登录后选择 `控制台`  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 8]  
选择 `镜像加速器` 然后选择 `CentOS`即可  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 9]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 10]  
创建docker文件夹

mkdir -p /etc/docker

创建 `daemon.json`文件

vim /etc/docker/daemon.json

![在这里插入图片描述][20191225141518151.png]  
再执行如下命令

systemctl daemon-reload
    systemctl restart docker

在执行 `hello-world`案例

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 11]

# 11.卸载docker #

systemctl stop docker
    yum -y remove docker-ce
    rm -rf /var/lib/docker

ok~docker的基本安装就介绍到此！

[20191225135702450.png]: https://img-blog.csdnimg.cn/20191225135702450.png
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