dockerfile里或者在容器里执行yum，报错，找不到源(invalid baseurl xxx)，但是宿主机上执行yum是没问题的啊，为什么？
创新互联建站主要从事网页设计、PC网站建设（电脑版网站建设）、wap网站建设（手机版网站建设）、响应式网站设计、程序开发、网站优化、微网站、微信小程序开发等，凭借多年来在互联网的打拼，我们在互联网网站建设行业积累了丰富的网站制作、成都网站制作、网站设计、网络营销经验，集策划、开发、设计、营销、管理等多方位专业化运作于一体。
因为不论是dockerfile使用RUN关键字执行yum还是直接进入到容器里面执行yum，它们都是使用的docker镜像里面的源(CentOS是在路径/etc/yum.repo.d/CentOS-Base.repo)，所以你要把宿主机上的同路径下的源拷贝到容器里面，然后docker commit一个新的“基础镜像”，这个时候使用docker build xxx(即使用Dockerfile的方式)就不会报错了。
拷贝方法docker cp xxx xxx
内容扩展
dockerfile中执行yum操作报错
我们先看下报错信息：
Sending build context to Docker daemon 9.363 MB
Step 1 : FROM docker.io/centos
---> 196e0ce0c9fb
Step 2 : MAINTAINER liuliangliang
---> Using cache
---> 7d7e06799c20
Step 3 : ADD file/tomcat7.tgz /usr/local/
---> Using cache
---> 10ffdea53a02
Step 4 : RUN yum install java-1.8.0-openjdk -y
---> Running in 7824a339e077
Loaded plugins: fastestmirror, ovl
One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).3. Run the command with the repository temporarily disabled
yum --disablerepo=... 4. Disable the repository permanently, so yum won't use it by default. Yum
will then just ignore the repository until you permanently enable it
again or use --enablerepo for temporary usage:yum-config-manager --disable
or
subscription-manager repos --disable=5. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:yum-config-manager --save --setopt=
.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=container error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
The command '/bin/sh -c yum install java-1.8.0-openjdk -y' returned a non-zero code: 1
解决方法：
这个你在resolv.conf文件里加上 DNS服务就行了 这个文件在/etc下， 加上
nameserver 8.8.8.8
nameserver 8.8.4.4
search localdomain
就行了
到此这篇关于docker容器调用yum报错的解决办法的文章就介绍到这了,更多相关docker容器调用yum报错如何解决内容请搜索创新互联以前的文章或继续浏览下面的相关文章希望大家以后多多支持创新互联！