Docker fails to build for both bases

[rickymagner]

Hi,

Both the provided Dockerfile and Dockerfile.centos6 fail to build for me. The first results in the following error:

 => [ 9/15] RUN wget http://archive.apache.org/dist/ant/binaries/apache-ant-1.9.7-bin.tar.gz &&     tar xzf apache-ant-1.9.7-bin.tar.gz &&     rm apache-ant-1.9.7-bin.tar.gz                                                                                                                                            3.1s
 => [10/15] WORKDIR /opt/hap.py-source                                                                                                                                                                                                                                                                                   0.0s
 => ERROR [11/15] RUN python install.py /opt/hap.py --with-rtgtools --no-tests                                                                                                                                                                                                                                           0.4s
------
 > [11/15] RUN python install.py /opt/hap.py --with-rtgtools --no-tests:
#15 0.411 Traceback (most recent call last):
#15 0.411   File "install.py", line 27, in <module>
#15 0.411     from urllib.request import urlopen
#15 0.411 ImportError: No module named request
------
executor failed running [/bin/sh -c python install.py /opt/hap.py --with-rtgtools --no-tests]: exit code: 1

and the second fails with

 => => extracting sha256:cbddbc0189a05ef8d3ac344a82cb5cf43279e80004433782cc7874b487f4a9a7                                                                                                                                                                                                                                3.4s
 => ERROR [ 2/12] RUN yum install -y     bzip2     bzip2-devel     centos-release-scl     cmake     curl     devtoolset-8-gcc     devtoolset-3-binutils     devtoolset-8-gcc-c++     devtoolset-8-gcc-gfortran     git     gzip     java-1.8.0-openjdk     ncurses-devel     perl     tar     wget     which     zlib-d  1.0s
------
 > [ 2/12] RUN yum install -y     bzip2     bzip2-devel     centos-release-scl     cmake     curl     devtoolset-8-gcc     devtoolset-3-binutils     devtoolset-8-gcc-c++     devtoolset-8-gcc-gfortran     git     gzip     java-1.8.0-openjdk     ncurses-devel     perl     tar     wget     which     zlib-devel RUN yum upgrade -y && yum update -y && yum clean all:
#5 0.321 Loaded plugins: fastestmirror
#5 0.351 Setting up Install Process
#5 0.602 Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
#5 0.602 YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
#5 0.602  Eg. Invalid release/repo/arch combination/
#5 0.602 removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
------
executor failed running [/bin/sh -c yum install -y     bzip2     bzip2-devel     centos-release-scl     cmake     curl     devtoolset-8-gcc     devtoolset-3-binutils     devtoolset-8-gcc-c++     devtoolset-8-gcc-gfortran     git     gzip     java-1.8.0-openjdk     ncurses-devel     perl     tar     wget     which     zlib-devel RUN yum upgrade -y && yum update -y && yum clean all]: exit code: 1

It'd be great to be able to build the image with the files provided, since I've had some trouble installing them myself locally. I imagine updating the install script to python3 might solve some of the 2 vs 3 issues with the urllib library.