Docker教程（一）Centos Docker安装

╰+攻爆jí腚メ 2022-11-22 10:24 216阅读 0赞

**目录**

简介

1.安装初始化Docker

2.启动

--------------------

# 简介 #

[《Docker 入门教程 -阮一峰》][Docker _ -]

# 1.安装初始化Docker #

yum install Docker

执行完可能是这样的结果：

Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirrors.cloud.aliyuncs.com
     * extras: mirrors.cloud.aliyuncs.com
     * updates: mirrors.cloud.aliyuncs.com
    No package Docker available.
      * Maybe you meant: docker
    Error: Nothing to do

**解决方法：**

1.yum没有找到docker包，更新epel第三方软件库，运行命令：sudo yum install epel-release ，之后再执行：sudo yum install docker  
爽！上面的可行！

2.直接用下载源安装，执行命令：yum install https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86\_64/docker-engine-1.7.1-1.el6.x86\_64.rpm

# 2.启动 #

systemctl start docker.service

如果遇到问题：

Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.

可执行：

rm -rf /var/lib/docker/
    
    sudo mkdir -p /etc/docker
    
    sudo tee /etc/docker/daemon.json <<-'EOF'
    {
      "registry-mirrors": ["阿里云加速地址"]
    }
    EOF
    
    sudo systemctl daemon-reload
    
    sudo systemctl restart docker

**阿里云加速地址获取**

**请先注册阿里云账户，并登陆，访问 [https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors][https_cr.console.aliyun.com_cn-hangzhou_instances_mirrors]**

**就可以找到这段代码了**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzY5OTQ0_size_16_color_FFFFFF_t_70][]

**执行命令  systemctl start docker.service 成功启动 **

**查看启动状态  systemctl status docker**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzY5OTQ0_size_16_color_FFFFFF_t_70 1][]

# 容器创建 #

## Apache 容器 ##

docker run -d -p 80:80 httpd
    # -d: 放入后台运行
    # -p: 指定端口映射关系（第一个为本地端口、第二个为容器端口）

## Nginx 容器 ##

docker run -d -p 8080:80 nginx
    # 将本地的 8080 端口映射到容器的 80 端口

##  查询端口映射 ##

docker port "容器ID"

## 进入容器 ##

docker exec -it "容器ID" /bin/bash

## 复制本地文件到容器中 ##

docker cp /etc/profile 容器ID:/root
    docker exec -it 容器ID/bin/bash

[https://www.cnblogs.com/l-hh/p/10772942.html][https_www.cnblogs.com_l-hh_p_10772942.html]

[Docker _ -]: https://uncle.blog.csdn.net/article/details/109486241
[https_cr.console.aliyun.com_cn-hangzhou_instances_mirrors]: https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzY5OTQ0_size_16_color_FFFFFF_t_70]: /images/20221120/1f85897105a84455a014b15221b48a55.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzY5OTQ0_size_16_color_FFFFFF_t_70 1]: /images/20221120/d225a548e4ce4eae812247b76af32b8c.png
[https_www.cnblogs.com_l-hh_p_10772942.html]: https://www.cnblogs.com/l-hh/p/10772942.html