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moby--moby/contrib/mkimage-arch.sh

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#!/usr/bin/env bash
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# Generate a minimal filesystem for archlinux and load it into the local
# docker as "archlinux"
# requires root
set -e
hash pacstrap &>/dev/null || {
echo "Could not find pacstrap. Run pacman -S arch-install-scripts"
exit 1
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}
hash expect &>/dev/null || {
echo "Could not find expect. Run pacman -S expect"
exit 1
}
export LANG="C.UTF-8"
ROOTFS=$(mktemp -d ${TMPDIR:-/var/tmp}/rootfs-archlinux-XXXXXXXXXX)
chmod 755 $ROOTFS
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# packages to ignore for space savings
PKGIGNORE=(
cryptsetup
device-mapper
dhcpcd
iproute2
jfsutils
linux
lvm2
man-db
man-pages
mdadm
nano
netctl
openresolv
pciutils
pcmciautils
reiserfsprogs
s-nail
systemd-sysvcompat
usbutils
vi
xfsprogs
)
IFS=','
PKGIGNORE="${PKGIGNORE[*]}"
unset IFS
expect <<EOF
set send_slow {1 .1}
proc send {ignore arg} {
sleep .1
exp_send -s -- \$arg
}
set timeout 60
spawn pacstrap -C ./mkimage-arch-pacman.conf -c -d -G -i $ROOTFS base haveged --ignore $PKGIGNORE
expect {
-exact "anyway? \[Y/n\] " { send -- "n\r"; exp_continue }
-exact "(default=all): " { send -- "\r"; exp_continue }
-exact "installation? \[Y/n\]" { send -- "y\r"; exp_continue }
}
EOF
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arch-chroot $ROOTFS /bin/sh -c 'rm -r /usr/share/man/*'
arch-chroot $ROOTFS /bin/sh -c "haveged -w 1024; pacman-key --init; pkill haveged; pacman -Rs --noconfirm haveged; pacman-key --populate archlinux; pkill gpg-agent"
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arch-chroot $ROOTFS /bin/sh -c "ln -s /usr/share/zoneinfo/UTC /etc/localtime"
echo 'en_US.UTF-8 UTF-8' > $ROOTFS/etc/locale.gen
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arch-chroot $ROOTFS locale-gen
arch-chroot $ROOTFS /bin/sh -c 'echo "Server = https://mirrors.kernel.org/archlinux/\$repo/os/\$arch" > /etc/pacman.d/mirrorlist'
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# udev doesn't work in containers, rebuild /dev
DEV=$ROOTFS/dev
rm -rf $DEV
mkdir -p $DEV
mknod -m 666 $DEV/null c 1 3
mknod -m 666 $DEV/zero c 1 5
mknod -m 666 $DEV/random c 1 8
mknod -m 666 $DEV/urandom c 1 9
mkdir -m 755 $DEV/pts
mkdir -m 1777 $DEV/shm
mknod -m 666 $DEV/tty c 5 0
mknod -m 600 $DEV/console c 5 1
mknod -m 666 $DEV/tty0 c 4 0
mknod -m 666 $DEV/full c 1 7
mknod -m 600 $DEV/initctl p
mknod -m 666 $DEV/ptmx c 5 2
ln -sf /proc/self/fd $DEV/fd
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tar --numeric-owner --xattrs --acls -C $ROOTFS -c . | docker import - archlinux
docker run --rm -t archlinux echo Success.
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rm -rf $ROOTFS