Add an option to disable DigitalOcean-specific parts of the script
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022676c05f
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@ -54,7 +54,9 @@ This script supports several flags, all of which are optional.
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* `--target_filesystem`
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The filesystem on which the Arch Linux installation should be installed.
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Defaults to `btrfs`. The alternative is `ext4`.
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* `--no_digitalocean`
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Disables the parts of the script specific to DigitalOcean.
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How it Works
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------------
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1. A sparse disk image is created with the same size of the droplet's disk.
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60
install.sh
60
install.sh
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@ -46,6 +46,9 @@ target_disklabel="gpt"
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# new filesystem type (ext4/btrfs)
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target_filesystem="btrfs"
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# running on another VPS service (experimental)
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no_digitalocean=0
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# NOT EXPOSED NORMALLY: don't prompt
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continue_without_prompting=0
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@ -144,6 +147,12 @@ parse_flags() {
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shift
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break
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;;
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--no_digitalocean)
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no_digitalocean=1
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conf_key=option_acknowledged
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shift
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break
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;;
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--help)
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print_help_and_exit
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;;
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@ -360,31 +369,34 @@ stage1_install() {
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log "Formatting image ..."
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local doroot_loop=$(setup_loop_device ${doroot_offset_MiB} ${doroot_size_MiB})
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local archroot_loop=$(setup_loop_device ${archroot_offset_MiB} ${archroot_size_MiB})
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mkfs.ext4 -L DOROOT ${doroot_loop}
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[[ $no_digitalocean -eq 1 ]] || mkfs.ext4 -L DOROOT ${doroot_loop}
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mkfs.${target_filesystem} -L ArchRoot ${archroot_loop}
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log "Mounting image ..."
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mkdir -p /d2a/work/{doroot,archroot}
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mount ${doroot_loop} /d2a/work/doroot
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mount ${archroot_loop} /d2a/work/archroot
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log "Setting up DOROOT ..."
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mkdir -p /d2a/work/doroot/etc/network
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touch /d2a/work/doroot/etc/network/interfaces
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cat > /d2a/work/doroot/README <<-EOF
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DO NOT TOUCH FILES ON THIS PARTITION.
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if [[ $no_digitalocean -eq 0 ]]; then
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mount ${doroot_loop} /d2a/work/doroot
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The DOROOT partition is where DigitalOcean writes passwords and other data
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when a droplet is rebuilt from an image or restored from a snapshot.
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If certain files are missing, restores/rebuilds will not work and you will
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end up with an unusable image.
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log "Setting up DOROOT ..."
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mkdir -p /d2a/work/doroot/etc/network
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touch /d2a/work/doroot/etc/network/interfaces
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cat > /d2a/work/doroot/README <<-EOF
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DO NOT TOUCH FILES ON THIS PARTITION.
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The digitalocean-synchronize script also watches this partition.
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If this partition (particularly etc/shadow) is written to, the script will
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reset the root password to the one provided by DigitalOcean and wipe all
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SSH host keys for security.
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EOF
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chmod 0444 /d2a/work/doroot/README
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The DOROOT partition is where DigitalOcean writes passwords and other data
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when a droplet is rebuilt from an image or restored from a snapshot.
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If certain files are missing, restores/rebuilds will not work and you will
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end up with an unusable image.
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The digitalocean-synchronize script also watches this partition.
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If this partition (particularly etc/shadow) is written to, the script will
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reset the root password to the one provided by DigitalOcean and wipe all
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SSH host keys for security.
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EOF
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chmod 0444 /d2a/work/doroot/README
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fi
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log "Downloading bootstrap tarball ..."
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set -- $(wget -qO- ${archlinux_mirror}/iso/latest/sha1sums.txt |
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@ -441,9 +453,12 @@ stage1_install() {
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chroot /d2a/work/archroot usermod -p "${encrypted_password}" root
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chroot /d2a/work/archroot systemctl enable systemd-networkd.service
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chroot /d2a/work/archroot systemctl enable sshd.service
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package_digitalocean_synchronize /d2a/work/archroot/dosync.pkg.tar
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${chroot_pacman} -U --noconfirm /dosync.pkg.tar
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rm /d2a/work/archroot/dosync.pkg.tar
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if [[ $no_digitalocean -eq 0 ]]; then
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package_digitalocean_synchronize /d2a/work/archroot/dosync.pkg.tar
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${chroot_pacman} -U --noconfirm /dosync.pkg.tar
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rm /d2a/work/archroot/dosync.pkg.tar
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fi
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local authkeys
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if authkeys="$(wget -qO- -T5 -t1 ${meta_base}public-keys)" && test -z "${authkeys}"; then
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@ -545,7 +560,10 @@ insert_into_allocation_map() {
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stage2_arrange() {
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local disk_sectors=$(cat /sys/block/vda/size)
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local root_device=$(awk '$2 == "/" { root = $1 } END { print root }' /proc/mounts)
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local root_offset_sectors=$(cat /sys/block/vda/${root_device#/dev/}/start)
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local root_offset_sectors=0
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if [[ $root_device != "/dev/vda" ]]; then
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root_offset_sectors=$(cat /sys/block/vda/${root_device#/dev/}/start)
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fi
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local srcdst_map=() # original source to target map
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local unalloc_map=() # extents not used by either source or target (for tmpdst_map)
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local tmpdst_map=() # extents on temporary redirection (allocated from unalloc_map)
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