What to do if docker fails to install nginx

Solution to the failure of docker to install nginx: 1. Delete the originally installed nginx container through "docker rm nginx"; 2. Delete the nginx image file; 3. Reinstall and start nginx.

The operating environment of this article: ubuntu 18.04 system, Docker version 20.10.11, Dell G3 computer.

What should I do if docker fails to install nginx?

Error—Docker installs nginx and reports an error

Docker reported an error when installing nginx

I tried uninstalling docker and reinstalling it, deleting nginx, and deleting the nginx image file to no avail. Finally, I found that the Linux and docker version compatibility issues

1、查看你当前的内核版本         
uname -r

2、更新yum包               
sudo yum update

3、卸载已安装的docker（如果安装过的话）      
yum remove docker  docker-common docker-selinux docker-engine

4、安装需要的软件包           
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

5、设置yum源
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

6、可以查看所有仓库中所有docker版本，并选择特定版本安装
yum list docker-ce --showduplicates | sort -r

7、重新安装docker
sudo yum install docker-ce

8、启动docker
sudo systemctl start docker

9、验证安装是否成功
docker virsion      #查看docker的版本
docker ps            #查看当前正在运行的容器

10、删除原本装好的nginx容器（如果安装过）
docker rm nginx(容器名字或者id)

11、删除nginx镜像文件
docker images      #查看镜像文件
docker rmi nginx   #删除nginx镜像
docker rmi -f nginx     #强制删除nginx镜像

12、重装并启动nginx
docker run --name nginx -d -p 80:80 nginx

13、安装成功，测试成功

Recommended study: "Docker Video Tutorial"

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