diskimage-builder/diskimage_builder/elements/centos/pre-install.d/01-set-centos-mirror

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#!/bin/bash
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
DIB_DISTRIBUTION_MIRROR=${DIB_DISTRIBUTION_MIRROR:-}
[ -n "$DIB_DISTRIBUTION_MIRROR" ] || exit 0
# Only set the mirror for the Base, Extras and Updates repositories
# The others aren't enabled and do not exist on all mirrors
if [[ ${DIB_RELEASE} == '7' ]]; then
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\(centos\|altarch\)/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Base.repo
else
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Linux-BaseOS.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Linux-AppStream.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Linux-Plus.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Linux-Extras.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Linux-PowerTools.repo
fi
# CentOS Stream releases (e.g. 8-stream, 9-stream)
if [[ ${DIB_RELEASE} =~ '-stream' ]]; then
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Stream-Base.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Stream-AppStream.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Stream-centosplus.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Stream-Extras.repo
sed -e "s,^#baseurl=http[s]*://mirror.centos.org/\$contentdir/,baseurl=$DIB_DISTRIBUTION_MIRROR/,;/^mirrorlist=/d" -i /etc/yum.repos.d/CentOS-Stream-PowerTools.repo
fi