| #!/usr/bin/env bash |
| # 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 |
| } |
| |
| 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 $ROOTFS |
| |
| # packages to ignore for space savings |
| PKGIGNORE=( |
| cryptsetup |
| device-mapper |
| dhcpcd |
| iproute2 |
| jfsutils |
| linux |
| lvm2 |
| man-db |
| man-pages |
| mdadm |
| nano |
| netctl |
| openresolv |
| pciutils |
| pcmciautils |
| reiserfsprogs |
| s-nail |
| systemd-sysvcompat |
| usbutils |
| vi |
| xfsprogs |
| ) |
| IFS=',' |
| PKGIGNORE="${PKGIGNORE[*]}" |
| unset IFS |
| |
| arch="$(uname -m)" |
| case "$arch" in |
| armv*) |
| if pacman -Q archlinuxarm-keyring >/dev/null 2>&1; then |
| pacman-key --init |
| pacman-key --populate archlinuxarm |
| else |
| echo "Could not find archlinuxarm-keyring. Please, install it and run pacman-key --populate archlinuxarm" |
| exit 1 |
| fi |
| PACMAN_CONF=$(mktemp ${TMPDIR:-/var/tmp}/pacman-conf-archlinux-XXXXXXXXX) |
| version="$(echo $arch | cut -c 5)" |
| sed "s/Architecture = armv/Architecture = armv${version}h/g" './mkimage-archarm-pacman.conf' > "${PACMAN_CONF}" |
| PACMAN_MIRRORLIST='Server = http://mirror.archlinuxarm.org/$arch/$repo' |
| PACMAN_EXTRA_PKGS='archlinuxarm-keyring' |
| EXPECT_TIMEOUT=1800 # Most armv* based devices can be very slow (e.g. RPiv1) |
| ARCH_KEYRING=archlinuxarm |
| DOCKER_IMAGE_NAME="armv${version}h/archlinux" |
| ;; |
| *) |
| PACMAN_CONF='./mkimage-arch-pacman.conf' |
| PACMAN_MIRRORLIST='Server = https://mirrors.kernel.org/archlinux/$repo/os/$arch' |
| PACMAN_EXTRA_PKGS='' |
| EXPECT_TIMEOUT=60 |
| ARCH_KEYRING=archlinux |
| DOCKER_IMAGE_NAME=archlinux |
| ;; |
| esac |
| |
| export PACMAN_MIRRORLIST |
| |
| expect <<EOF |
| set send_slow {1 .1} |
| proc send {ignore arg} { |
| sleep .1 |
| exp_send -s -- \$arg |
| } |
| set timeout $EXPECT_TIMEOUT |
| |
| spawn pacstrap -C $PACMAN_CONF -c -d -G -i $ROOTFS base haveged $PACMAN_EXTRA_PKGS --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 } |
| -exact "delete it? \[Y/n\]" { send -- "y\r"; exp_continue } |
| } |
| EOF |
| |
| 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 $ARCH_KEYRING; pkill gpg-agent" |
| 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 |
| arch-chroot $ROOTFS locale-gen |
| arch-chroot $ROOTFS /bin/sh -c 'echo $PACMAN_MIRRORLIST > /etc/pacman.d/mirrorlist' |
| |
| # udev doesn't work in containers, rebuild /dev |
| DEV=$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 |
| |
| tar --numeric-owner --xattrs --acls -C $ROOTFS -c . | docker import - $DOCKER_IMAGE_NAME |
| docker run --rm -t $DOCKER_IMAGE_NAME echo Success. |
| rm -rf $ROOTFS |