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Docker build error(network bridge mode)

(Tetuya0703) #1

Hello everyone

docker-engine:Docker version 18.03.1-ce, build 9ee9f40

I create docker-bridge-network
command is as follows.

docker network create --driver
–opt “”=“br0”

brctl addif br0 ens33

And, docker build command follows
docker build -t test-container:1.0 .
But, It’s build error follows

 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=<repoid> ...

     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 <repoid>
            subscription-manager repos --disable=<repoid>

     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

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64
Could not retrieve mirrorlist error was
14: curl#6 - "Could not resolve host:; Unknown error"
The command '/bin/sh -c yum -y update' returned a non-zero code: 1


FROM centos:7

RUN yum check
RUN yum -y update
RUN yum -y install net-tools

# ansible install
RUN yum -y install wget
RUN wget && rpm -ivh epel-release-latest-7.noarch.rpm

RUN yum -y install ansible

# ssh install
RUN yum -y install openssh-server
RUN sed -ri 's/^#PermitRootLogin yes/PermitRootLogin yes/' /etc/ssh/sshd_config
RUN ssh-keygen -t rsa -N "" -f /etc/ssh/ssh_host_rsa_key

RUN echo 'root:password' | chpasswd

# route add
RUN route add -net gw


CMD ["/usr/sbin/sshd", "-D"]

How should it correspond to settle this problem?