Error: Failed to download metadata for repo ‘appstream‘: Cannot prepare internal mirrorlist: No URLs

古城微笑少年丶 2023-09-29 13:41 26阅读 0赞

在阿里云服务器上 docker build 出现错误  
`Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs`

[root@Agustletmen dockerfile]# docker run -f /home/dockerfile/mydockerfile-centos -t mycentos:0.1 .
    unknown shorthand flag: 'f' in -f
    See 'docker run --help'.
    [root@Agustletmen dockerfile]# docker build -f /home/dockerfile/mydockerfile-centos -t mycentos:0.1 .
    Sending build context to Docker daemon  2.048kB
    Step 1/10 : FROM centos
     ---> 5d0da3dc9764
    Step 2/10 : MAINTAINER qx<3066686488@qq.com>
     ---> Using cache
     ---> f25871e5ab22
    Step 3/10 : ENV MYPATH /usr/local
     ---> Using cache
     ---> 48e5adc23206
    Step 4/10 : WORKDIR $MYPATH
     ---> Using cache
     ---> 3c7e4ff9ca5d
    Step 5/10 : RUN yum -y install vim
     ---> Running in 71b82bf5f0ac
    CentOS Linux 8 - AppStream                       30  B/s |  38  B     00:01
    Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
    The command '/bin/sh -c yum -y install vim' returned a non-zero code: 1

`原因：因为centOS8于2021年12月31日停止了源的服务，而现在时间是2022年3月了，所以之前的方法都不行的原因所在（本质是源的问题）。`

解决方案：未具体指明 centos7 的镜像时，它会默认去找最新的镜像，然后就一直失败  
因为我的宿主机的是centos 7.9.2009的  
因此在下载的时候下载了7.9.2009  
docker pull centos:7.9.2009  
将脚本中FROM centos改成指定版本FROM centos：7.9.2009  
即可成功

FROM centos:7.9.2009
    MAINTAINER qx<888666@qq.com>
    
    ENV MYPATH /usr/local
    WORKDIR $MYPATH
    
    RUN yum -y install vim
    RUN yum -y install net-tools
    
    EXPOSE 80
    
    CMD echo $MYPATH
    CMD echo "-----end----"
    CMD /bin/bash