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#!/bin/bash -exv | |
readonly MAINTAINER="harasou <harasou5@gmail.com>" | |
readonly REPOSITORY="harasou/centos-core" | |
function usage(){ | |
cat<<EOD 1>&2 | |
Usage: | |
$0 version | |
Examples: | |
$0 6.4 | |
$0 7.6.1810 | |
EOD | |
exit 1 | |
} | |
readonly version=$1 | |
readonly workdir="$(cd $(dirname $0) && pwd)/centos-core-$version" | |
readonly repodir="$workdir/etc/yum.repos.d" | |
readonly rootdir="$workdir/root" | |
mkdir -p $repodir $rootdir | |
cd $rootdir | |
url="http://ftp.jaist.ac.jp/pub/Linux/CentOS/$version/isos/x86_64"; curl -sf $url || | |
url="http://ftp.jaist.ac.jp/pub/Linux/CentOS-vault/$version/isos/x86_64"; curl -sf $url || | |
url="http://archive.kernel.org/centos-vault/$version/isos/x86_64" | |
readonly releasever=${version%%.*} | |
case $releasever in | |
6) readonly iso="CentOS-$version-x86_64-minimal.iso" | |
;; | |
7) readonly releaseday=${version##*.} | |
readonly iso="CentOS-$releasever-x86_64-Minimal-$releaseday.iso" | |
;; | |
*) usage | |
;; | |
esac | |
# | |
# download iso image | |
# | |
[ -f "$iso" ] || curl -O $url/$iso | |
expect=$(curl $url/sha256sum.txt|grep $iso) | |
test "$expect" == "$(shasum -a 256 $iso)" | |
# | |
# create /etc/yum.repos.d/CentOS-ISO.repo | |
# | |
isomountpoint="/mnt" | |
cat<<EOD>$repodir/CentOS-ISO.repo | |
[iso] | |
name=CentOS-$releasever - ISO | |
baseurl=file://$isomountpoint | |
enabled=1 | |
gpgcheck=1 | |
gpgkey=file://$isomountpoint/RPM-GPG-KEY-CentOS-$releasever | |
EOD | |
# | |
# create make world scripts | |
# | |
mkworld="mkworld" | |
cat<<EOC>$mkworld | |
#!/bin/bash -exv | |
mount -o loop /root/$iso $isomountpoint | |
yum --installroot='/tmp/root' --skip-broken --exclude='*-firmware' groupinstall Core -y | |
$( [ $releasever -eq 6 ] && echo "chroot /tmp/root rpm --rebuilddb") | |
tar zcvf /root/centos-core-$releasever.tar.gz -C /tmp/root . | |
EOC | |
# | |
# groupinstall from iso image on container | |
# | |
docker container run --privileged -it --rm \ | |
-v $repodir:/etc/yum.repos.d \ | |
-v $rootdir:/root \ | |
centos \ | |
/bin/bash -exv /root/$mkworld | |
# | |
# build docker image from groupinstall | |
# | |
cat<<EOD>Dockerfile | |
FROM scratch | |
MAINTAINER $MAINTAINER | |
ADD centos-core-$releasever.tar.gz / | |
CMD ["/bin/bash"] | |
EOD | |
docker build -t $REPOSITORY:$version . |
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harasou commentedDec 24, 2018