Während yum install
von Docker Datei tun Nachricht immer den folgenden Fehler in Centos 7Docker yum Ausgabe installieren - Kann nicht metalink für Repository abrufen: EPEL/x86_64
Docker build -f DockerFile.
Sending build context to Docker daemon 1.252 MB
Step 1 : FROM centos:7
---> 778a53015523
Step 2 : RUN rpm -iUvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm # For python-pip
---> Using cache
---> 324c446a8ded
Step 3 : RUN rpm --import http://repo.saltstack.com/yum/redhat/7/x86_64/latest/SALTSTACK-GPG-KEY.pub
---> Using cache
---> bdab0cf0e83d
Step 4 : RUN yum install -y python-pip
---> Running in 092314f6bd8f
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. Disable the repository, 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 <repoid>
4. 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=<repoid>.skip_if_unavailable=true
Cannot retrieve metalink for repository: epel/x86_64. Please verify its path and try again
The command '/bin/sh -c yum install -y python-pip' returned a non-zero code: 1
Unsere Server sind hinter Proxyservern. So Proxy-Einträge werden in der Datei hinzugefügt /etc/sysconfig/docker
HTTP_PROXY=<PROXY_IP>:80/
HTTPS_PROXY=<PROXY_IP>:80/
Auch die Env-Datei in hinzugefügt docker.service
[Service]
EnvironmentFile=-/etc/sysconfig/docker
Jede Hilfe wäre sehr geschätzt.
Mögliches Duplikat von [Docker Images können nicht unter einem Proxy heruntergeladen werden] (http://stackoverflow.com/questions/23111631/cannot-download-docker-images-behind-a-proxy) –