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several fixes to chrootless mode

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This commit is contained in:
Johannes Schauer Marin Rodrigues 2021-08-17 23:39:20 +02:00
parent f868073b6e
commit dfbf9cdcef
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1
2 changed files with 36 additions and 28 deletions
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14
coverage.sh
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@ -405,7 +405,7 @@ diff --no-dereference --recursive /tmp/debian-debootstrap /tmp/debian-mm
# check permissions, ownership, symlink targets, modification times using tar # check permissions, ownership, symlink targets, modification times using tar
# mtimes of directories created by mmdebstrap will differ, thus we equalize them first # mtimes of directories created by mmdebstrap will differ, thus we equalize them first
for d in etc/apt/preferences.d/ etc/apt/sources.list.d/ etc/dpkg/dpkg.cfg.d/; do for d in etc/apt/preferences.d/ etc/apt/sources.list.d/ etc/dpkg/dpkg.cfg.d/ var/log/apt/; do
touch --date="@$SOURCE_DATE_EPOCH" /tmp/debian-debootstrap/\$d /tmp/debian-mm/\$d touch --date="@$SOURCE_DATE_EPOCH" /tmp/debian-debootstrap/\$d /tmp/debian-mm/\$d
done done
# debootstrap never ran apt -- fixing permissions # debootstrap never ran apt -- fixing permissions
@ -3321,8 +3321,6 @@ fi
prefix= prefix=
[ "\$(id -u)" -eq 0 ] && prefix="runuser -u user --" [ "\$(id -u)" -eq 0 ] && prefix="runuser -u user --"
\$prefix $CMD --mode=chrootless --variant=custom --include=doc-debian $DEFAULT_DIST /tmp/debian-chroot $mirror \$prefix $CMD --mode=chrootless --variant=custom --include=doc-debian $DEFAULT_DIST /tmp/debian-chroot $mirror
# preserve output with permissions and timestamps for later test
chmod 700 /tmp/debian-chroot
tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@$SOURCE_DATE_EPOCH --iso-8601=seconds) -cf /tmp/debian-chroot.tar . tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@$SOURCE_DATE_EPOCH --iso-8601=seconds) -cf /tmp/debian-chroot.tar .
tar tvf /tmp/debian-chroot.tar > doc-debian.tar.list tar tvf /tmp/debian-chroot.tar > doc-debian.tar.list
rm /tmp/debian-chroot.tar rm /tmp/debian-chroot.tar
@ -3340,7 +3338,6 @@ rm /tmp/debian-chroot/var/cache/apt/archives/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock rm /tmp/debian-chroot/var/lib/dpkg/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend
rm /tmp/debian-chroot/var/lib/apt/lists/lock rm /tmp/debian-chroot/var/lib/apt/lists/lock
rm /tmp/debian-chroot/var/lib/apt/extended_states
if [ "$mode" != "chrootless" ] || dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then if [ "$mode" != "chrootless" ] || dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
@ -3467,10 +3464,9 @@ if [ "\$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
fi fi
prefix= prefix=
[ "\$(id -u)" -eq 0 ] && prefix="runuser -u user --" [ "\$(id -u)" -eq 0 ] && prefix="runuser -u user --"
\$prefix $CMD --mode=chrootless --variant=custom --include=doc-debian --setup-hook='touch "\$1/setup"' --customize-hook='touch "\$1/customize"' $DEFAULT_DIST /tmp/debian-chroot $mirror \$prefix $CMD --mode=chrootless --skip=cleanup/tmp --variant=custom --include=doc-debian --setup-hook='touch "\$1/tmp/setup"' --customize-hook='touch "\$1/tmp/customize"' $DEFAULT_DIST /tmp/debian-chroot $mirror
rm /tmp/debian-chroot/setup rm /tmp/debian-chroot/tmp/setup
rm /tmp/debian-chroot/customize rm /tmp/debian-chroot/tmp/customize
chmod 700 /tmp/debian-chroot
tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@$SOURCE_DATE_EPOCH --iso-8601=seconds) -cf /tmp/debian-chroot.tar . tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@$SOURCE_DATE_EPOCH --iso-8601=seconds) -cf /tmp/debian-chroot.tar .
tar tvf /tmp/debian-chroot.tar | grep -v ' ./dev' | diff -u doc-debian.tar.list - tar tvf /tmp/debian-chroot.tar | grep -v ' ./dev' | diff -u doc-debian.tar.list -
rm /tmp/debian-chroot.tar rm /tmp/debian-chroot.tar
@ -3488,7 +3484,6 @@ rm /tmp/debian-chroot/var/cache/apt/archives/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock rm /tmp/debian-chroot/var/lib/dpkg/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend
rm /tmp/debian-chroot/var/lib/apt/lists/lock rm /tmp/debian-chroot/var/lib/apt/lists/lock
rm /tmp/debian-chroot/var/lib/apt/extended_states
if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
@ -3551,7 +3546,6 @@ rm /tmp/debian-chroot/var/cache/apt/archives/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock rm /tmp/debian-chroot/var/lib/dpkg/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend
rm /tmp/debian-chroot/var/lib/apt/lists/lock rm /tmp/debian-chroot/var/lib/apt/lists/lock
rm /tmp/debian-chroot/var/lib/apt/extended_states
if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt rm /tmp/debian-chroot/var/lib/dpkg/cmethopt

48
mmdebstrap
View file

@ -1461,15 +1461,13 @@ sub setup {
(my $pkgs_to_install, my $essential_pkgs, my $cached_debs) (my $pkgs_to_install, my $essential_pkgs, my $cached_debs)
= run_download($options); = run_download($options);
if ( $options->{mode} ne 'chrootless' # in theory, we don't have to extract the packages in chrootless mode
or $options->{variant} eq 'extract') { # but we do it anyways because otherwise directory creation timestamps
# We have to extract the packages from @essential_pkgs either if we run # will differ compared to non-chrootless and we want to create bit-by-bit
# in chrootless mode and extract variant or in any other mode. In # identical tar output
# other words, the only scenario in which the @essential_pkgs are not #
# extracted are in chrootless mode in any other than the extract # FIXME: dpkg could be changed to produce the same results
# variant.
run_extract($options, $essential_pkgs); run_extract($options, $essential_pkgs);
}
run_hooks('extract', $options); run_hooks('extract', $options);
@ -1552,8 +1550,10 @@ sub run_setup() {
} }
# if dpkg and apt operate from the outside we need some more # if dpkg and apt operate from the outside we need some more
# directories because dpkg and apt might not even be installed inside # directories because dpkg and apt might not even be installed inside
# the chroot # the chroot. Thus, the following block is not strictly necessary in
if ($options->{mode} eq 'chrootless') { # chrootless mode. We unconditionally add it anyways, so that the
# output with and without chrootless mode is equal.
{
push @directories, '/var/log/apt'; push @directories, '/var/log/apt';
# since we do not know the dpkg version inside the chroot at this # since we do not know the dpkg version inside the chroot at this
# point, we can only omit it in chrootless mode # point, we can only omit it in chrootless mode
@ -2818,10 +2818,23 @@ sub run_essential() {
$ENV{QEMU_LD_PREFIX} = $options->{root}; $ENV{QEMU_LD_PREFIX} = $options->{root};
} }
} }
run_apt_progress({ # we don't use apt because that will not run the base-passwd preinst
ARGV => ['apt-get', '--yes', @chrootless_opts, 'install'], # early enough
PKGS => [map { "$options->{root}/$_" } @{$essential_pkgs}], #run_apt_progress({
}); # ARGV => ['apt-get', '--yes', @chrootless_opts, 'install'],
# PKGS => [map { "$options->{root}/$_" } @{$essential_pkgs}],
#});
run_dpkg_progress({
ARGV => [
'dpkg',
'--force-not-root',
'--force-script-chrootless',
"--root=$options->{root}",
"--log=$options->{root}/var/log/dpkg.log",
'--install',
'--force-depends'
],
PKGS => [map { "$options->{root}/$_" } @{$essential_pkgs}] });
} elsif ( } elsif (
any { $_ eq $options->{mode} } any { $_ eq $options->{mode} }
('root', 'unshare', 'fakechroot', 'proot') ('root', 'unshare', 'fakechroot', 'proot')
@ -5278,7 +5291,9 @@ sub main() {
# in unshare and root mode, other users than the current user need to # in unshare and root mode, other users than the current user need to
# access the rootfs, most prominently, the _apt user. Thus, make the # access the rootfs, most prominently, the _apt user. Thus, make the
# temporary directory world readable. # temporary directory world readable.
if (any { $_ eq $options->{mode} } ('unshare', 'root')) { if (any { $_ eq $options->{mode} } ('unshare', 'root')
or
($EFFECTIVE_USER_ID == 0 and $options->{mode} eq 'chrootless')) {
chmod 0755, $options->{root} or error "cannot chmod root: $!"; chmod 0755, $options->{root} or error "cannot chmod root: $!";
} }
} elsif ($format eq 'directory') { } elsif ($format eq 'directory') {
@ -6667,8 +6682,7 @@ the required priority.
=item B<extract> =item B<extract>
Extract the downloaded packages into the rootfs. This step is not carried out Extract the downloaded packages into the rootfs.
in chrootless mode if the variant is not B<extract>.
=item B<extract-hook> =item B<extract-hook>