forked from DataDog/docker-dd-agent-build-rpm-i386
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make-docker-image.sh
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/
make-docker-image.sh
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#!/bin/bash -e
#
# Create a base CentOS Docker image.
#
# Adapted from [mkimage-yum](https://github.com/docker/docker/blob/master/contrib/mkimage-yum.sh)
name=centos5
yum_config=/etc/yum.conf
#--------------------
target=$(mktemp -d -p /tmp/ mkimage-yum.XXXXXX)
set -x
mkdir -m 755 "$target"/dev
mknod -m 600 "$target"/dev/console c 5 1
mknod -m 600 "$target"/dev/initctl p
mknod -m 666 "$target"/dev/full c 1 7
mknod -m 666 "$target"/dev/null c 1 3
mknod -m 666 "$target"/dev/ptmx c 5 2
mknod -m 666 "$target"/dev/random c 1 8
mknod -m 666 "$target"/dev/tty c 5 0
mknod -m 666 "$target"/dev/tty0 c 4 0
mknod -m 666 "$target"/dev/urandom c 1 9
mknod -m 666 "$target"/dev/zero c 1 5
echo "nameserver 8.8.8.8" > /etc/resolv.conf
sed -i 's/$releasever/5/g' /etc/yum.repos.d/CentOS-Base.repo
yum -c "$yum_config" --installroot="$target" \
-y groupinstall Core
yum -c "$yum_config" --installroot="$target" -y clean all
cat > "$target"/etc/sysconfig/network <<EOF
NETWORKING=yes
HOSTNAME=localhost.localdomain
EOF
# effectively: febootstrap-minimize --keep-zoneinfo --keep-rpmdb
# --keep-services "$target". Stolen from mkimage-rinse.sh
# locales
rm -rf "$target"/usr/{{lib,share}/locale,{lib,lib64}/gconv,bin/localedef,sbin/build-locale-archive}
# docs
rm -rf "$target"/usr/share/{man,doc,info,gnome/help}
# cracklib
rm -rf "$target"/usr/share/cracklib
# i18n
rm -rf "$target"/usr/share/i18n
# sln
rm -rf "$target"/sbin/sln
# ldconfig
rm -rf "$target"/etc/ld.so.cache
rm -rf "$target"/var/cache/ldconfig/*
version=
if [ -r "$target"/etc/redhat-release ]; then
version="$(sed 's/^[^0-9\]*\([0-9.]\+\).*$/\1/' "$target"/etc/redhat-release)"
fi
if [ -z "$version" ]; then
echo >&2 "warning: cannot autodetect OS version, using '$name' as tag"
version=$name
fi
cp /vagrant/linux32 "$target"/usr/bin/linux32
tar --numeric-owner -c -C "$target" -zf /vagrant/$name.tar.gz .
rm -rf "$target"
echo "Tarball successfully created!"