docker: try to follow the best practices for writing Dockerfiles
Merged multiple RUN instructions and sorted the arguments alphabetically
Reference: https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/
FROM centos:centos5
RUN \
sed -i 's/^mirrorlist/#mirrorlist/' /etc/yum.repos.d/*.repo && \
sed -i 's/^#\(baseurl=\)http:\/\/mirror.centos.org\/centos/\1http:\/\/vault.centos.org/' /etc/yum.repos.d/*.repo && \
sed -i 's/\$releasever/5.11/' /etc/yum.repos.d/*.repo
RUN yum install -y \
gcc \
gettext \
make \
python-devel \
python-docutils \
rpm-build \
tar
# For creating repo meta data
RUN yum install -y \
bzip2-devel \
createrepo \
ncurses-devel \
openssl-devel \
readline-devel \
zlib-devel