You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.7 KiB
Bash
68 lines
1.7 KiB
Bash
#!/bin/bash
|
|
## @author gdm85
|
|
##
|
|
## build a base Ubuntu Trusty
|
|
#
|
|
|
|
BASENAME=$(dirname $(readlink -m $0))
|
|
|
|
## the distro we are going to use
|
|
DISTNAME=trusty
|
|
REPOSRC=http://archive.ubuntu.com/ubuntu/
|
|
|
|
if [ ! $UID -eq 0 ]; then
|
|
echo "This script can only be run as root" 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
## check for prerequisites
|
|
if ! type -P debootstrap >/dev/null; then
|
|
echo "You need to install debootstrap" 1&2
|
|
exit 2
|
|
fi
|
|
|
|
## check about the Ubuntu archive keyring
|
|
DEFK=/usr/share/keyrings/ubuntu-archive-keyring.gpg
|
|
KEYRING=$BASENAME/../keyrings/ubuntu-archive-keyring.gpg
|
|
if [ -s $DEFK ]; then
|
|
if ! diff $DEFK $KEYRING; then
|
|
ANSWER=
|
|
while [[ "$ANSWER" != "Y" && "$ANSWER" != "n" ]]; do
|
|
echo -n "The Ubuntu Archive keyring in your system ($DEFK) that will be used to debootstrap is different from the reference provided keyring. Continue? (Y/n) "
|
|
read -r ANSWER || exit $?
|
|
done
|
|
if [[ "$ANSWER" == "n" ]]; then
|
|
exit 1
|
|
fi
|
|
## use system's keyring, even if different than provided one
|
|
## this is a no-issue only in case the system's keyring is more recent than the provided one
|
|
KEYRING=$DEFK
|
|
fi
|
|
else
|
|
ANSWER=
|
|
while [[ "$ANSWER" != "Y" && "$ANSWER" != "n" ]]; do
|
|
echo -n "Your system comes with no Ubuntu Archive keyring in $DEFK that is necessary for debootstrap. Use reference provided keyring? (Y/n) "
|
|
read -r ANSWER || exit $?
|
|
done
|
|
if [[ "$ANSWER" == "n" ]]; then
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
echo "Will use $KEYRING"
|
|
exit 0
|
|
|
|
## NOTE: a temporary directory under /tmp is not used because can't be mounted dev/exec
|
|
mkdir $DISTNAME || exit $?
|
|
TMPDIR=$PWD/$DISTNAME
|
|
|
|
debootstrap --keyring=$KEYRING $DISTNAME $DISTNAME $REPOSRC && \
|
|
cd $DISTNAME && \
|
|
tar -c . | docker import - gdm85/$DISTNAME
|
|
RV=$?
|
|
|
|
# always perform cleanup
|
|
rm -rf $TMPDIR
|
|
|
|
exit $RV
|