mesa/.gitlab-ci/container/strip-rootfs.sh
Daniel Stone 0ec961325b ci: Strip yet more unnecessary things from the rootfs
We don't need to ship a Rust toolchain, drivers from Debian's version of
Mesa, etc. So stop doing it.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31595>
2024-10-16 22:52:44 +00:00

158 lines
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Bash

#!/usr/bin/env bash
# Strip the image to a small minimal system.
# When changing this file, you need to bump the following
# .gitlab-ci/image-tags.yml tags:
# KERNEL_ROOTFS_TAG
set -ex
export DEBIAN_FRONTEND=noninteractive
UNNEEDED_PACKAGES=(
libfdisk1 git
python3-dev python3-pip python3-setuptools python3-wheel
)
# Removing unused packages
for PACKAGE in "${UNNEEDED_PACKAGES[@]}"
do
if ! apt-get remove --purge --yes "${PACKAGE}"
then
echo "WARNING: ${PACKAGE} isn't installed"
fi
done
apt-get autoremove --yes || true
UNNEEDED_PACKAGES=(
apt libapt-pkg6.0
ncurses-bin ncurses-base libncursesw6 libncurses6
perl-base libperl5.36 perl-modules-5.36
debconf libdebconfclient0
e2fsprogs e2fslibs libfdisk1
insserv
udev
init-system-helpers
cpio
passwd
libsemanage1 libsemanage-common
libsepol1
gpgv
hostname
adduser
debian-archive-keyring
"*mesa*"
intel-media-va-driver
gnupg2
software-properties-common
)
# Removing unneeded packages
for PACKAGE in "${UNNEEDED_PACKAGES[@]}"
do
if ! dpkg --purge --force-remove-essential --force-depends "${PACKAGE}"
then
echo "WARNING: ${PACKAGE} isn't installed"
fi
done
# Show what's left package-wise before dropping dpkg itself
COLUMNS=300 dpkg-query -W --showformat='${Installed-Size;10}\t${Package}\n' | sort -k1,1n
# Drop dpkg
dpkg --purge --force-remove-essential --force-depends dpkg
# directories for a removal
directories=(
/var/log/* # logs
/usr/share/doc/* # docs, i18n, etc.
/usr/share/locale/*
/usr/share/X11/locale/*
/usr/share/man
/usr/share/i18n/*
/usr/share/info/*
/usr/share/lintian/*
/usr/share/common-licenses/*
/usr/share/mime/*
/usr/share/bug
/lib/udev/hwdb.bin # udev hwdb not required on a stripped system
/lib/udev/hwdb.d/*
/usr/bin/iconv # gconv conversions && binaries
/usr/sbin/iconvconfig
/usr/lib/*/gconv/
/usr/sbin/update-usbids # libusb db
/usr/share/misc/usb.ids
/var/lib/usbutils/usb.ids
/root/.pip # pip cache
/root/.cache
/root/.cargo
/etc/apt # configuration archives of apt and dpkg
/etc/dpkg
/var/* # drop non-ostree directories
/srv
/share
/usr/share/ca-certificates # certificates are in /etc
/usr/share/bash-completion # completions
/usr/share/zsh/vendor-completions
/usr/share/gcc # gcc python helpers
/etc/inid.d # sysvinit leftovers
/etc/rc[0-6S].d
/etc/init
/usr/lib/lsb
/usr/lib/xtables # xtrables helpers
/usr/lib/locale/* # should we keep C locale?
/usr/sbin/*fdisk # partitioning
/usr/bin/localedef # local compiler
/usr/sbin/ldconfig* # only needed when adding libs
/usr/games
/usr/lib/*/security/pam_userdb.so # Remove pam module to authenticate against a DB
/usr/lib/*/libdb-5.3.so # libdb-5.3.so that is only used by this pam module ^
/usr/lib/*/libnss_hesiod* # remove NSS support for nis, nisplus and hesiod
/usr/lib/*/libnss_nis*
/usr/lib/*/wine # don't need Wine's implementation, using Proton instead
/usr/local/bin/mold
/usr/local/bin/bindgen
/usr/local/bin/cargo*
/usr/local/bin/clippy*
/usr/local/bin/rust*
/usr/local/bin/rls
/usr/lib/*/dri
)
for directory in "${directories[@]}"; do
rm -rf "$directory" || echo "Failed to remove $directory! Update scripts!"
done
files=(
'*systemd-resolve*' # systemd dns resolver
'*networkd*' # systemd network configuration
'*timesyncd*' # systemd ntp
'systemd-hwdb*' # systemd hw database
'*fuse*' # FUSE
)
for files in "${files[@]}"; do
find /usr /etc -name "$files" -prune -exec rm -r {} \;
done
# We purge apt and dpkg to save on space, which is great for runtime and
# bandwidth use etc, but less great for cbuild which wants to run apt-get clean
# when we're done. Install a stub which works for that and is apologetic for
# anyone else.
cat >/usr/bin/apt-get <<EOF
#!/bin/bash
if [ "\${1:-}" != "clean" ]; then
echo "Couldn't run '\$0 \$*', because apt has been cleaned from this container."
echo ""
echo "After .gitlab-ci/container/strip-rootfs.sh has run, you cannot install"
echo "new packages."
echo ""
echo "Sorry."
exit 1
fi
EOF
chmod +x /usr/bin/apt-get
ln -s /usr/bin/apt-get /usr/bin/apt