429 lines
15 KiB
Bash
Executable File
429 lines
15 KiB
Bash
Executable File
#!/bin/sh
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# TODO: Make sure fdisk from busybox is NOT used, it's counting sectors incorrectly (?!)
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# TODO: Check connectivity with API server
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BUTTERKNIFE_POOL_MOUNTPOINT=/var/lib/butterknife/pool
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TARGET_MOUNTPOINT=/mnt/target
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AGENT="Butterknife-Provisioning-Image/0.2"
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URL_LOCAL=http://butterknife
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#for i in $(cat /proc/cmdline); do
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# case i in
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# bk_debug)
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set -x # Echo
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# ;;
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# esac
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#done
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set -e # Bail on error
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#######################################
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### Transfer method selection phase ###
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#######################################
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if [ -z $BUTTERKNIFE_TRANSFER_METHOD ]; then
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BUTTERKNIFE_TRANSFER_METHOD=$(dialog --menu "Select transfer method" 0 0 0 \
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http "HTTP-only" \
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multicast "Multicast receive" \
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tee "Multicast via HTTP and write" \
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proxy "Only proxy HTTP to multicast" 2>&1 >$(tty))
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clear
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fi
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##################################
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### Harddisk preparation phase ###
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##################################
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case $BUTTERKNIFE_TRANSFER_METHOD in
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http|multicast|tee)
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#############################
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### Target disk selection ###
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#############################
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if [ -z $bk_disk_slug ]; then
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bk_disk_slug=$(butterknife-select-disk 2>&1 >$(tty))
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fi
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BUTTERKNIFE_DISK=/dev/$bk_disk_slug
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if [ -z $BUTTERKNIFE_PARTITIONING_METHOD ]; then
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BUTTERKNIFE_PARTITIONING_METHOD=$(dialog --menu "Partitioning $BUTTERKNIFE_DISK" 0 0 0 \
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receive "Receive into existing btrfs filesystem" \
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unpartitioned "Use unpartitioned area" \
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resize "Resize last partition" \
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reformat "Reformat partition" \
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mbr "Wipe <2TB disk" \
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gpt "Wipe 2TB+ disk" \
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efi "Wipe and do EFI install" \
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2>&1 >$(tty))
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clear
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fi
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# TODO: deploy "Deploy received template" \
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# TODO: postinstall "Run postinstall scripts (reinstall GRUB)" \
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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unpartitioned)
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echo "Attempting to create new partition in unpartitioned space"
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echo -e "n\np\n\n\n\nw" | fdisk $BUTTERKNIFE_DISK
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;;
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resize)
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NTFS_PARTITION=$(ls $BUTTERKNIFE_DISK?* | tail -n 1)
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# TODO: Assert last one is NTFS
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# TODO: Suggested size heuristics
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MINSIZE=$(ntfsresize $NTFS_PARTITION -m | grep Minsize | cut -d ':' -f 2)
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SUGGESTED=${MINSIZE}M
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SIZE=$(dialog --inputbox "Enter new filesystem size of at least ${MINSIZE}M" 0 0 $SUGGESTED 2>&1 >$(tty))
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clear
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ntfsresize -s $SIZE $NTFS_PARTITION
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echo -e "d\n\nw" | fdisk $BUTTERKNIFE_DISK # Remove last partition
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echo -e "n\np\n\n\n+$SIZE\nt\n\n7\nw" | fdisk $BUTTERKNIFE_DISK # Re-create NTFS
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echo -e "n\np\n\n\n\nw" | fdisk $BUTTERKNIFE_DISK # Create partition for btrfs
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;;
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mbr)
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echo "Purging whole disk"
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echo -e "o\nn\np\n\n\n\na\n1\nw" | fdisk $BUTTERKNIFE_DISK
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;;
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gpt)
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sgdisk $BUTTERKNIFE_DISK -o -g \
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-n 1::+2MB -t 1:ef02 -c 1:"BIOS Boot Partition" \
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-n 2 -t 2:8300 -c 2:"Butterknife pool" -p
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;;
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efi)
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sgdisk $BUTTERKNIFE_DISK -o -g \
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-n 1::+100MB -t 1:ef00 -c 1:"EFI System Partition" \
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-n 2 -t 2:8300 -c 2:"Butterknife pool" -p
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;;
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reformat|receive)
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# NOOP
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;;
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*)
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echo "Invalid partitioning method $BUTTERKNIFE_PARTITIONING_METHOD"
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exit 255
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;;
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esac
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############################################
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### Target partition determination phase ###
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############################################
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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reformat|receive)
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# Dialog to select partition for reformat or receive
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for partition in $BUTTERKNIFE_DISK?*; do
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partition_slug=$(echo $BUTTERKNIFE_PARTITION | cut -d "/" -f 3)
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sector_count=$(cat /sys/block/$bk_disk_slug/$BUTTERKNIFE_PARTITION_slug/size)
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sector_size=$(cat /sys/block/$bk_disk_slug/queue/hw_sector_size)
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size=$(expr $sector_count / 1000000 \* $sector_size / 1000 || true)G
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if [ $size == "0G" ]; then
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size=$(expr $sector_count / 1000 \* $sector_size / 1000 || true)M
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fi
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echo "$BUTTERKNIFE_PARTITION \"$size\"";
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done > /tmp/partitions
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BUTTERKNIFE_PARTITION=$(dialog \
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--menu "Target partition" 0 0 0 \
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--file /tmp/partitions \
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2>&1 >$(tty))
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clear
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;;
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unpartitioned|resize|mbr|gpt|efi)
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# Assume last partition
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BUTTERKNIFE_PARTITION=$(ls $BUTTERKNIFE_DISK?* | tail -n 1)
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;;
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*)
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echo "Invalid partitioning method $BUTTERKNIFE_PARTITIONING_METHOD"
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exit 255
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;;
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esac
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PARTITION_SLUG=$(echo $BUTTERKNIFE_PARTITION | cut -d "/" -f 3)
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########################################
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### Target filesystem creation phase ###
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########################################
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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efi)
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BUTTERKNIFE_EFI_SYSTEM_PARTITION=$(ls ${BUTTERKNIFE_DISK}?* | sort | head -n 1)
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mkfs.vfat ${BUTTERKNIFE_EFI_SYSTEM_PARTITION}
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;;
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esac
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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mbr|gpt|efi|reformat|unpartitioned|resize)
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echo "Creating clean btrfs filesystem on $PARTITON"
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mkfs.btrfs -f $BUTTERKNIFE_PARTITION
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;;
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esac
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# Attempt to mount target directory
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mkdir -p $BUTTERKNIFE_POOL_MOUNTPOINT
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mount $BUTTERKNIFE_PARTITION $BUTTERKNIFE_POOL_MOUNTPOINT -o subvol=/ -t btrfs
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if [ $? -ne 0 ]; then
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dialog --msgbox "Mounting $BUTTERKNIFE_PARTITION at $BUTTERKNIFE_POOL_MOUNTPOINT failed, are you sure kernel has btrfs support built-in?" 0 0
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exit 255
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fi
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################
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### Clean up ###
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################
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for subvol in $(ls $BUTTERKNIFE_POOL_MOUNTPOINT | (grep "^@template:" || true)); do
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set +e
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touch $BUTTERKNIFE_POOL_MOUNTPOINT/$subvol/.test
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if [ $? -eq 0 ]; then
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set -e
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btrfs subvol delete $BUTTERKNIFE_POOL_MOUNTPOINT/$subvol
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fi
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set -e
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done
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;;
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*)
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BUTTERKNIFE_PARTITIONING_METHOD="pass"
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;;
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esac
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##############################
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### Determine architecture ###
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##############################
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bk_arch=$(uname -m | sed 's/^i.86$/x86/')
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case $BUTTERKNIFE_TRANSFER_METHOD in
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http|tee|proxy)
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##############################
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### Server selection phase ###
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##############################
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if [ -z $bk_url ]; then
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bk_url=$(dialog --menu "Select server" 0 0 0 \
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mdns:// "Autodiscover" \
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$URL_LOCAL "Manually enter" \
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https://butterknife.k-space.ee "K-SPACE MTÜ" 2>&1 >$(tty))
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if [ "$bk_url" == "mdns://" ]; then
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butterknife-discover > /tmp/discovered_servers
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bk_url=$(dialog --menu "Select one of discovered servers" \
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0 0 0 --file /tmp/discovered_servers 2>&1 >$(tty))
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elif [ "$bk_url" == $URL_LOCAL ]; then
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bk_url=$(dialog --inputbox "Manually enter the URL of Butterknife server" \
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0 0 $URL_LOCAL 2>&1 >$(tty))
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fi
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clear
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fi
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################################
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### Template selection phase ###
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################################
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if [ -z $bk_template ]; then
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# Fetch template list
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curl -A $AGENT -s $bk_url/api/template \
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| jq '.templates[] | .namespace + "." + .identifier + " \"" + .description + "\""' -r \
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> /tmp/available_templates
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bk_template=$(dialog \
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--menu "Select template to deploy" 0 0 0 \
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--file /tmp/available_templates \
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2>&1 >$(tty))
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clear
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fi
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###############################
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### Version selection phase ###
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###############################
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if [ -z $bk_version ]; then
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# Fetch version list
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curl -A $AGENT -s $bk_url/api/template/$bk_template/arch/$bk_arch/version \
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> /tmp/available_versions.json
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cat /tmp/available_versions.json \
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| jq '.versions[] | .identifier + " \"" + .comment + "\""' -r \
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| head -n 100 \
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> /tmp/available_versions
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bk_version=$(dialog \
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--menu "Select version to deploy" 0 0 0 \
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--file /tmp/available_versions \
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2>&1 >$(tty))
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clear
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fi
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BUTTERKNIFE_TEMPLATE_SUBVOL="@template:$bk_template:$bk_arch:$bk_version"
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#####################################
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### Stream URL construction phase ###
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#####################################
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# Build btrfs-stream URL
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STREAM="$bk_url/$BUTTERKNIFE_TEMPLATE_SUBVOL"
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;;
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esac
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##############################################
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### Allow differential versions using HTTP ###
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##############################################
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case $BUTTERKNIFE_TRANSFER_METHOD in
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http)
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# Determine differential version parent
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cat /tmp/available_versions.json | jq -r '.versions[] .identifier' > /tmp/available_version_names
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ls $BUTTERKNIFE_POOL_MOUNTPOINT | (grep "^@template:$bk_template:$bk_arch:" || true) | cut -d ":" -f 4 > /tmp/local_version_names
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PARENT=$(cat /tmp/local_version_names /tmp/available_version_names | sort | grep -v $bk_version | uniq -d | sort -t p -k 2n | tail -n 1)
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if [ -z $PARENT ]; then
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echo "Could not determine parent, falling back to full snapshot"
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else
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STREAM="$STREAM?parent=@template:$bk_template:$bk_arch:$PARENT"
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fi
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echo "Final URL is $STREAM"
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;;
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esac
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####################################################
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### Enable compression if we're going over HTTPS ###
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####################################################
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case $STREAM in
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https://*)
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STREAM="--compressed $STREAM"
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;;
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esac
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######################
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### Transfer phase ###
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######################
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case $BUTTERKNIFE_TRANSFER_METHOD in
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multicast)
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ls $BUTTERKNIFE_POOL_MOUNTPOINT | (grep "^@template:" || true) > /tmp/local_templates
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udp-receiver --nokbd | btrfs receive $BUTTERKNIFE_POOL_MOUNTPOINT
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# Heuristics to determine name of received snapshot
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ls $BUTTERKNIFE_POOL_MOUNTPOINT | (grep "^@template:" || true) > /tmp/new_templates
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BUTTERKNIFE_TEMPLATE_SUBVOL=$(cat /tmp/local_templates /tmp/new_templates | sort | uniq -u)
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# TODO: Break here if we got garbage
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bk_template=$(echo $BUTTERKNIFE_TEMPLATE_SUBVOL | cut -d ":" -f 2)
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bk_arch=$(echo $BUTTERKNIFE_TEMPLATE_SUBVOL | cut -d ":" -f 3)
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bk_version=$(echo $BUTTERKNIFE_TEMPLATE_SUBVOL | cut -d ":" -f 4)
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;;
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http)
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curl -A $AGENT $STREAM | btrfs receive $BUTTERKNIFE_POOL_MOUNTPOINT
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;;
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tee)
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dialog --msgbox "Press enter once all the other machines are ready to receive" 0 0
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mkfifo /tmp/multicast_stream /tmp/local_stream
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cat /tmp/local_stream | btrfs receive $BUTTERKNIFE_POOL_MOUNTPOINT &
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sleep 1
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udp-sender --nokbd --no-progress --min-receivers 1 --min-wait 5 /tmp/multicast_stream &
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sleep 1
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curl -A $AGENT -s $STREAM | tee /tmp/multicast_stream > /tmp/local_stream
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sleep 2
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# TODO: Ensure btrfs receive has finished
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;;
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proxy)
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dialog --msgbox "Press enter once all the other machines are ready to receive" 0 0
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curl -A $AGENT -s $STREAM \
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| udp-sender --nokbd --min-receivers 1 --min-wait 5
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;;
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esac
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sync
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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pass)
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echo "Skipping template deployment"
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;;
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*)
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#################################
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### Template deployment phase ###
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#################################
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BUTTERKNIFE_DEPLOY_SUBVOL="@root:$bk_template:$bk_arch:$bk_version"
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btrfs subvolume snapshot \
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$BUTTERKNIFE_POOL_MOUNTPOINT/$BUTTERKNIFE_TEMPLATE_SUBVOL \
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$BUTTERKNIFE_POOL_MOUNTPOINT/$BUTTERKNIFE_DEPLOY_SUBVOL
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# Symlink @root:active to current deployment subvol
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rm -f $BUTTERKNIFE_POOL_MOUNTPOINT/@root:active
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ln -s \
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$BUTTERKNIFE_DEPLOY_SUBVOL \
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$BUTTERKNIFE_POOL_MOUNTPOINT/@root:active
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###############################
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### Run post-deploy scripts ###
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###############################
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# Mount deployment subvolume at target directory
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mkdir -p $TARGET_MOUNTPOINT
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mount -o subvol=$BUTTERKNIFE_DEPLOY_SUBVOL \
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$BUTTERKNIFE_PARTITION \
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$TARGET_MOUNTPOINT
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# Mount pool also for chroot
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mkdir -p $TARGET_MOUNTPOINT$BUTTERKNIFE_POOL_MOUNTPOINT
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mount -o subvol=/ \
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$BUTTERKNIFE_PARTITION \
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$TARGET_MOUNTPOINT$BUTTERKNIFE_POOL_MOUNTPOINT
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# Mount stuff for chroot
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mount --bind /dev/ $TARGET_MOUNTPOINT/dev/
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mount --bind /sys/ $TARGET_MOUNTPOINT/sys/
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mount --bind /proc/ $TARGET_MOUNTPOINT/proc/
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mount --bind /run/ $TARGET_MOUNTPOINT/run/
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mount none $TARGET_MOUNTPOINT/tmp/ -t tmpfs
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case $BUTTERKNIFE_PARTITIONING_METHOD in
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efi)
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mount ${BUTTERKNIFE_EFI_SYSTEM_PARTITION} $TARGET_MOUNTPOINT/boot/efi
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;;
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esac
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# Export variables for postinstall scripts
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export BUTTERKNIFE_DOMAIN
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export BUTTERKNIFE_TEMPLATE_SUBVOL
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export BUTTERKNIFE_DEPLOY_SUBVOL
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export BUTTERKNIFE_PARTITION
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export BUTTERKNIFE_DISK
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export BUTTERKNIFE_POOL_MOUNTPOINT
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export BUTTERKNIFE_PARTITIONING_METHOD
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export BUTTERKNIFE_TRANSFER_METHOD
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export BUTTERKNIFE_POOL_UUID=$(blkid -s UUID -o value $BUTTERKNIFE_PARTITION)
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# Copy DNS config
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mkdir -p /run/resolvconf
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mkdir -p /run/systemd/resolve
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cat /etc/resolv.conf > $TARGET_MOUNTPOINT/etc/resolv.conf
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# Export sensible PATH
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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# Run postinstall scripts, presumably in sorted order
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chroot $TARGET_MOUNTPOINT butterknife-deploy
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chroot $TARGET_MOUNTPOINT butterknife-maintenance
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# Be forgiving from now on
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set +e
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# Unmount directories
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echo "Unmounting filesystems"
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umount -a
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echo "Flushing buffers"
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sync
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sleep 1
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echo "Rebooting machine"
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reboot -f
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;;
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esac
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