执行`docker build -f ./dockerfile -t mycentos7:v1 .`时 `RUN yum install -y vim` 报错
执行docker build -f ./dockerfile -t mycentos7:v1 .时 RUN yum install -y vim 报错
1.报错信息
[+] Building 0.9s (5/6) docker:default
=> [internal] load build definition from centos7-dockerfile 0.0s
=> => transferring dockerfile: 188B 0.0s
=> [internal] load metadata for docker.io/library/centos:7 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> CACHED [1/3] FROM docker.io/library/centos:7 0.0s
=> ERROR [2/3] RUN yum install -y vim 0.8s
------
> [2/3] RUN yum install -y vim:
0.409 Loaded plugins: fastestmirror, ovl
0.509 Determining fastest mirrors
0.768 Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=container error was
0.768 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
0.770
0.770
0.770 One of the configured repositories failed (Unknown),
0.770 and yum doesn't have enough cached data to continue. At this point the only
0.770 safe thing yum can do is fail. There are a few ways to work "fix" this:
0.770
0.770 1. Contact the upstream for the repository and get them to fix the problem.
0.770
0.770 2. Reconfigure the baseurl/etc. for the repository, to point to a working
0.770 upstream. This is most often useful if you are using a newer
0.770 distribution release than is supported by the repository (and the
0.770 packages for the previous distribution release still work).
0.770
0.770 3. Run the command with the repository temporarily disabled
0.770 yum --disablerepo=<repoid> ...
0.770
0.770 4. Disable the repository permanently, so yum won't use it by default. Yum
0.770 will then just ignore the repository until you permanently enable it
0.770 again or use --enablerepo for temporary usage:
0.770
0.770 yum-config-manager --disable <repoid>
0.770 or
0.770 subscription-manager repos --disable=<repoid>
0.770
0.770 5. Configure the failing repository to be skipped, if it is unavailable.
0.770 Note that yum will try to contact the repo. when it runs most commands,
0.770 so will have to try and fail each time (and thus. yum will be be much
0.770 slower). If it is a very temporary problem though, this is often a nice
0.770 compromise:
0.770
0.770 yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
0.770
0.770 Cannot find a valid baseurl for repo: base/7/x86_64
------
centos7-dockerfile:4
--------------------
2 | MAINTAINER author
3 |
4 | >>> RUN yum install -y vim
5 |
6 | CMD /bin/bash
--------------------
ERROR: failed to solve: process "/bin/sh -c yum install -y vim" did not complete successfully: exit code: 1
2. dockerfile文件内容
FROM centos:7
MAINTAINER author
RUN yum install -y vim
CMD /bin/bash
WORKDIR /usr
3.解决方法
FROM centos:7
MAINTAINER zfm
RUN cd /etc/yum.repos.d/ \
&& 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-* \
&& yum install -y vim
CMD /bin/bash
WORKDIR /usr
