Add mkimage-arch.sh

contrib/mkimage-arch.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+# Generate a minimal filesystem for archlinux and load it into the local
+# docker as "archlinux"
+# requires root
+set -e
+
+PACSTRAP=$(which pacstrap)
+[ "$PACSTRAP" ] || {
+    echo "Could not find pacstrap. Run pacman -S arch-install-scripts"
+    exit 1
+}
+EXPECT=$(which expect)
+[ "$EXPECT" ] || {
+    echo "Could not find expect. Run pacman -S expect"
+    exit 1
+}
+
+ROOTFS=~/rootfs-arch-$$-$RANDOM
+mkdir $ROOTFS
+
+#packages to ignore for space savings
+PKGIGNORE=linux,jfsutils,lvm2,cryptsetup,groff,man-db,man-pages,mdadm,pciutils,pcmciautils,reiserfsprogs,s-nail,xfsprogs
+ 
+expect -c "
+  set timeout 60
+  spawn pacstrap -c -d -G -i $ROOTFS base haveged --ignore $PKGIGNORE
+  expect {
+    \"Install anyway\" { send "n\\r"; exp_continue }
+    \"(default=all)\" { send "\\r"; exp_continue }
+    \"Proceed with installation?\" { send "\\r"; exp_continue }
+    \"skip the above package\" {send "y\\r"; exp_continue }
+    \"checking\" { exp_continue }
+    \"loading\" { exp_continue }
+    \"installing\" { exp_continue }
+  }"
+
+arch-chroot $ROOTFS /bin/sh -c "haveged -w 1024; pacman-key --init; pkill haveged; pacman -Rs --noconfirm haveged; pacman-key --populate archlinux"
+arch-chroot $ROOTFS /bin/sh -c "ln -s /usr/share/zoneinfo/UTC /etc/localtime"
+cat > $ROOTFS/etc/locale.gen <<DELIM
+en_US.UTF-8 UTF-8
+en_US ISO-8859-1
+DELIM
+arch-chroot $ROOTFS locale-gen
+arch-chroot $ROOTFS /bin/sh -c 'echo "Server = http://mirrors.kernel.org/archlinux/\$repo/os/\$arch" > /etc/pacman.d/mirrorlist'
+
+# udev doesn't work in containers, rebuild /dev
+DEV=${ROOTFS}/dev
+mv ${DEV} ${DEV}.old
+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
+
+tar -C $ROOTFS -c . | docker import - archlinux
+docker run -i -t archlinux echo Success.
+rm -rf $ROOTFS