Docker Curl 错误:无法解析主机名

问题描述 投票:0回答:1

我有人在我的机器上设置了 docker,到目前为止一切都运行顺利。我只是尝试修剪卷以释放一些空间。当我尝试重建图像时(如果我在这里没有使用正确的术语,请原谅我,因为我对此很陌生并且专注于数据分析部分),我遇到了以下错误。

 => [internal] load build definition from Dockerfile.python                                                                                                                           0.0s
 => => transferring dockerfile: 1.70kB                                                                                                                                                0.0s
 => [internal] load metadata for docker.io/library/centos:latest                                                                                                                      2.0s
 => [auth] library/centos:pull token for registry-1.docker.io                                                                                                                         0.0s
 => [internal] load .dockerignore                                                                                                                                                     0.0s
 => => transferring context: 2B                                                                                                                                                       0.0s
 => CANCELED [internal] load build context                                                                                                                                            1.1s
 => => transferring context: 55.43MB                                                                                                                                                  1.0s
 => CACHED [ 1/16] FROM docker.io/library/centos:latest@sha256:a2                                               0.0s
 => ERROR [ 2/16] RUN dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos -y &&     dnf distro-sync -y                                              1.1s
------
 > [ 2/16] RUN dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos -y &&     dnf distro-sync -y:
0.949 CentOS Linux 8 - Extras                         0.0  B/s |   0  B     00:00
0.949 Errors during downloading metadata for repository 'extras':
0.949   - Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=extras&infra=container [Could not resolve host: mirrorlist.centos.org]
0.953 Error: Failed to download metadata for repo 'extras': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=extras&infra=container [Could not resolve host: mirrorlist.centos.org]
------

 2 warnings found (use docker --debug to expand):
 - SecretsUsedInArgOrEnv: Do not use ARG or ENV instructions for sensitive data (ENV "DESTINATION_KEY") (line 64)
 - SecretsUsedInArgOrEnv: Do not use ARG or ENV instructions for sensitive data (ENV "SOURCE_KEY") (line 62)
Dockerfile.python:3
--------------------
   2 |
   3 | >>> RUN dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos -y && \
   4 | >>>     dnf distro-sync -y
   5 |
--------------------
ERROR: failed to solve: process "/bin/sh -c dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos -y &&     dnf distro-sync -y" did not complete successfully: exit code: 1

我相信是我的 docker 文件中的下面一行导致了错误。我怎样才能减轻这种情况?

RUN dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos -y && \
    dnf distro-sync -y
docker curl
1个回答
0
投票

Centos 7 自 2024 年 6 月下旬起就已停止使用。他们已禁用其存储库,这就是出现与

mirrorlist.centos.org
有关的错误的原因。以下是有关 Centos 7 EOL 的一些详细信息:https://community.centminmod.com/threads/centos-7-end-of-life-eol-june-30-2024.25589/

尝试在容器内使用这些命令来禁用镜像列表:

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-*
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