ServerSetup/setup.sh

#! /bin/bash

echo ""
echo "Updating local packages..."
errors=`apt-add-repository universe >/dev/null 2>/dev/null && apt update 2>&1 >/dev/null`
if [ "$?" = "0" ]; then
	echo "Done."
else
	echo "Failed to add universal repository, update apt repository - $errors"
	exit 1
fi

echo ""
echo "Installing required setup configuration utilities..."
apt install -y dialog net-tools gdisk zfs-initramfs debootstrap >/dev/null 2>/dev/null
if [ "$?" = "0" ]; then
	echo "Done."
else
	echo "Failed to install net-tools, gdisk, zfs-initramfs, or debootstrap."
	exit 2
fi

#calculate width and height of console
width=`tput cols`
height=`tput lines`
window=$((height - 5))

# gather input at the start
devices=""; for device in $(ls /dev/disk/by-id | grep -v part); do devices="$devices $device off"; done
disks=`dialog --separate-output --no-cancel --no-items --title "Root devices" --checklist "Select boot drives" $height $width ${window}$devices 2>&1 1>/dev/tty`
raidtype=`dialog --no-items --no-cancel --title "Root pool ZFS RAID" --radiolist "Select root pool ZFS RAID type" 12 35 5 raidz off raidz2 off raidz3 off mirror off none off 2>&1 1>/dev/tty`
hostname=""; while [ -z "$hostname" ]; do hostname=`dialog --no-cancel --inputbox "Host name/Server name" 8 100 2>&1 >/dev/tty`; done
nicdevices=""; for nic in $(ip -o link show | awk -F': ' '{print $2}' | grep -v '^lo'); do nicdevices="$nicdevices $nic off"; done
nics=`dialog --separate-output --no-cancel --no-items --title "Network devices for bridge" --checklist "Select the network devices to be bridged" $height $width ${window}$nicdevices 2>&1 1>/dev/tty`
rootpassword=`dialog --no-cancel --title "Root password" --insecure --passwordbox "Enter root password" $height $width 2>&1 1>/dev/tty`
timezone=`dialog --no-cancel --title "Timezone" --inputbox "Enter time zone" $height $width "America/Los_Angeles" 2>&1 1>/dev/tty`
admin=""; while [ -z "$admin" ]; do admin=`dialog --no-cancel --inputbox "Admin account/first user (with sudo capability)" 8 100 2>&1 >/dev/tty`; done

for disk in `echo "$disks"`; do
		echo ""
        echo "Partitioning disk $disk..."
		errors=`sgdisk --zap-all /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n2:1M:+512M -t2:EF00 /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n3:0:+512M -t3:BF01 /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n4:0:0 -t4:BF01 /dev/disk/by-id/$disk 2>&1 1>/dev/null`
		if ! [ "$?" = "0" ]; then
			echo "Failed to partition disk $disk - $errors"
			exit 3
		fi
        echo "Done."
done

# create boot mirror list
bootmirror=""; rootraidz=""; for disk in `echo "$disks"`; do bootmirror="$bootmirror /dev/disk/by-id/${disk}-part3"; rootraidz="$rootraidz /dev/disk/by-id/${disk}-part4"; done

# refresh drives or there are missing partitions
partprobe 2>/dev/null 1>/dev/null

echo ""
echo "Creating boot zpool..."
errors=`zpool create -f -o ashift=12 -d -o feature@async_destroy=enabled -o feature@bookmarks=enabled -o feature@embedded_data=enabled -o feature@empty_bpobj=enabled -o feature@enabled_txg=enabled -o feature@extensible_dataset=enabled -o feature@filesystem_limits=enabled -o feature@hole_birth=enabled -o feature@large_blocks=enabled -o feature@lz4_compress=enabled -o feature@spacemap_histogram=enabled -o feature@userobj_accounting=enabled -O acltype=posixacl -O canmount=off -O compression=lz4 -O devices=off -O normalization=formD -O relatime=on -O xattr=sa -O mountpoint=/ -R /mnt bpool mirror$bootmirror 2>&1 1>/dev/null`
if ! [ "$?" = "0" ]; then
	echo "Failed to create boot pool - $errors"
	exit 4
fi
echo "Done."

# special exception for none raid - this just operates the disks like a stripe, for 1 or more disk - *not* recommended
if [ "$raidtype" = "none" ]; then
	raidtype=""
else
	raidtype=" $raidtype"
fi

echo ""
echo "Creating main zpool..."
error=`zpool create -f -o ashift=12 -O acltype=posixacl -O canmount=off -O compression=lz4 -O dnodesize=auto -O normalization=formD -O relatime=on -O xattr=sa -O mountpoint=/ -R /mnt rpool${raidtype}${rootraidz} 2>&1 1>/dev/null`
if ! [ "$?" = "0" ]; then
	echo "Failed to create main pool - $errors"
	exit 5
fi
echo "Done."

echo ""
echo "Setting up main zpool dataset configuration..."
errors=`zfs create -o canmount=off -o mountpoint=none rpool/ROOT 2>&1 1>/dev/null && zfs create -o canmount=off -o mountpoint=none bpool/BOOT 2>&1 1>/dev/null && zfs create -o canmount=noauto -o mountpoint=/ rpool/ROOT/ubuntu 2>&1 1>/dev/null && zfs mount rpool/ROOT/ubuntu 2>&1 1>/dev/null && zfs create -o canmount=noauto -o mountpoint=/boot bpool/BOOT/ubuntu 2>&1 1>/dev/null && zfs mount bpool/BOOT/ubuntu 2>&1 1>/dev/null && zfs create                                 rpool/home 2>&1 1>/dev/null && zfs create -o mountpoint=/root             rpool/home/root 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/var 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/var/lib 2>&1 1>/dev/null && zfs create                                 rpool/var/log 2>&1 1>/dev/null &&  zfs create                                 rpool/var/spool 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/cache 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/tmp 2>&1 1>/dev/null && chmod 1777 /mnt/var/tmp 2>&1 1>/dev/null && zfs create                                 rpool/opt 2>&1 1>/dev/null && zfs create                                 rpool/srv 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/usr 2>&1 1>/dev/null && zfs create                                 rpool/usr/local 2>&1 1>/dev/null && zfs create                                 rpool/var/mail 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/lib/docker 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/lib/nfs 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/tmp 2>&1 1>/dev/null && chmod 1777 /mnt/tmp 2>&1 1>/dev/null`
if ! [ "$?" = "0" ]; then 
	echo "Error setting up ZFS settings - $errors"
	exit 5
fi
echo "Done."

echo ""
echo "Starting debian bootstrap - this can take some time..."
debootstrap bionic /mnt
#errors=`debootstrap bionic /mnt 2>&1 1>/dev/null`
if ! [ "$?" = "0" ]; then 
	echo "Failed to bootstrap root - $errors"
	exit 6
fi
echo "Done."

echo ""
echo "Disabling ZFS devices..."
errors=`zfs set devices=off rpool 2>&1 1>/dev/null`
if ! [ "$?" = "0" ]; then
	echo "Failed to set devices=off for root pool- $errors"
	exit 7
fi
echo "Done."

echo ""
echo "Setting hostname..."
echo "$hostname" > /mnt/etc/hostname
echo "127.0.1.1 $hostname" >> /mnt/etc/hosts
echo "Done."

echo ""
echo "Setting default apt repositories"
echo "deb http://archive.ubuntu.com/ubuntu bionic main universe"  > /mnt/etc/apt/sources.list
echo "deb-src http://archive.ubuntu.com/ubuntu bionic main universe" >> /mnt/etc/apt/sources.list
echo "deb http://security.ubuntu.com/ubuntu bionic-security main universe" >> /mnt/etc/apt/sources.list
echo "deb-src http://security.ubuntu.com/ubuntu bionic-security main universe" >> /mnt/etc/apt/sources.list
echo "deb http://archive.ubuntu.com/ubuntu bionic-updates main universe" >> /mnt/etc/apt/sources.list
echo "deb-src http://archive.ubuntu.com/ubuntu bionic-updates main universe" >> /mnt/etc/apt/sources.list
echo "Done."

# network configuration should have optional static configuration - not just DHCP, it's very important

echo ""
echo "Writing netplan file"
macaddr=$(echo $hostname|md5sum|sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
echo "network:" > /mnt/etc/netplan/bridge.yaml
echo "  version: 2" >> /mnt/etc/netplan/bridge.yaml
echo "  renderer: networkd"  >> /mnt/etc/netplan/bridge.yaml
echo "  ethernets:" >> /mnt/etc/netplan/bridge.yaml
for nic in "$nics"; do
	echo "    ${nic}:"  >> /mnt/etc/netplan/bridge.yaml
	echo "      dhcp4: no"  >> /mnt/etc/netplan/bridge.yaml
done
echo "  bridges:"  >> /mnt/etc/netplan/bridge.yaml
echo "    br0:" >> /mnt/etc/netplan/bridge.yaml
echo "      macaddress: ${macaddr}" >> /mnt/etc/netplan/bridge.yaml
echo "      dhcp4: yes" >> /mnt/etc/netplan/bridge.yaml
echo "      parameters:" >> /mnt/etc/netplan/bridge.yaml
echo "        stp: true"  >> /mnt/etc/netplan/bridge.yaml
echo "      interfaces:"  >> /mnt/etc/netplan/bridge.yaml
for nic in `echo "$nics"`; do
	echo "        - ${nic}" >> /mnt/etc/netplan/bridge.yaml
done
echo "Done."

echo ""
echo "Setting up bpoo import service"
echo "[Unit]\n    DefaultDependencies=no" > /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    Before=zfs-import-scan.service" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    Before=zfs-import-cache.service" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "[Service]" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    Type=oneshot" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    RemainAfterExit=yes" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    ExecStart=/sbin/zpool import -N -o cachefile=none bpool" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "[Install]" >> /mnt/etc/systemd/system/zfs-import-bpool.service
echo "    WantedBy=zfs-import.target	"  >> /mnt/etc/systemd/system/zfs-import-bpool.service
chmod +x /mnt/etc/systemd/system/zfs-import-bpool.service
echo "Done."

echo ""
echo "Mounting chroot mounts..."
mount --rbind /dev  /mnt/dev
mount --rbind /proc /mnt/proc
mount --rbind /sys  /mnt/sys
echo "Done."

echo "Entering chroot..."
echo "#! /bin/bash" > /mnt/setup-chroot.sh
echo "echo \"\"" >> /mnt/setup-chroot.sh
echo "echo \"Mounting /proc/self/mounts...\"" >> /mnt/setup-chroot.sh
echo "ln -s /proc/self/mounts /etc/mtab"  >> /mnt/setup-chroot.sh
echo "echo \"Done.\""  >> /mnt/setup-chroot.sh
echo "echo \"\""  >> /mnt/setup-chroot.sh
echo "echo \"Updating apt repositories inside chroot...\""  >> /mnt/setup-chroot.sh
echo "apt update" >> /mnt/setup-chroot.sh
#echo "errors=`apt update 2>&1 1>/dev/null`" >> /mnt/setup-chroot.sh
echo 'if ! [ "$?" = "0" ]; then '>> /mnt/setup-chroot.sh
echo "	echo \"Failed to update apt repositories inside chroot - \$errors\"" >> /mnt/setup-chroot.sh
#echo "	exit 1">> /mnt/setup-chroot.sh
echo "fi">> /mnt/setup-chroot.sh
echo "echo \"Done.\"">> /mnt/setup-chroot.sh
echo "echo \"\"">> /mnt/setup-chroot.sh
echo "echo \"Setting locale...\"" >> /mnt/setup-chroot.sh
echo "locale-gen en_US.UTF-8" >> /mnt/setup-chroot.sh
#echo "echo 'LANG=\"en_US.UTF-8\"' > /etc/default/locale" >> /mnt/setup-chroot.sh
#echo "echo 'LANGUAGE=\"en_US:en\"' >> /etc/default/locale">> /mnt/setup-chroot.sh
echo "echo \"Done.\"" >> /mnt/setup-chroot.sh
echo "cp /usr/share/zoneinfo/$timezone /etc/localtime" >> /mnt/setup-chroot.sh
echo "apt install -y --no-install-recommends linux-image-generic" >> /mnt/setup-chroot.sh
echo "apt install -y vim bash screen tmux zfs-initramfs dosfstools openssh-server">> /mnt/setup-chroot.sh
echo "i=\"0\"" >> /mnt/setup-chroot.sh
echo "for disk in \"\$disks\"; do" >> /mnt/setup-chroot.sh
echo "	echo \"mkdosfs -F 32 -s 1 -n EFI /dev/disk/by-id/${disk}-part2\"" >> /mnt/setup-chroot.sh
echo "	echo \"mkdir /boot/efi\${i}\"" >> /mnt/setup-chroot.sh
echo "	echo \"echo PARTUUID=$(blkid -s PARTUUID -o value /dev/disk/by-id/\${disk}-part2) /boot/efi\${i} vfat nofail,x-systemd.device-timeout=0 0 1 >> /etc/fstab\"" >> /mnt/setup-chroot.sh
echo "	echo \"mount /boot/efi\${i}\"" >> /mnt/setup-chroot.sh
echo "	i=$((i + 1))" >> /mnt/setup-chroot.sh
echo "done" >> /mnt/setup-chroot.sh
echo "apt install -y grub-efi-amd64-signed shim-signed" >> /mnt/setup-chroot.sh
echo "echo 'root:${rootpassword}' | chpasswd" >> /mnt/setup-chroot.sh

echo "systemctl enable zfs-import-bpool.service" >> /mnt/setup-chroot.sh


echo "exit 0" >> /mnt/setup-chroot.sh


#cp /usr/sharesystemd/tmp.mount /etc/systemd/system/
#systemctl enable tmp.mount
#addgroup --system lpadmin
#addgroup --system sambashare

echo "echo \"Checking ZFS root...\"" >> /mnt/setup-chroot.sh
echo "zfscheck=`grub-probe /boot 2>&1 1>/dev/null`" >> /mnt/setup-chroot.sh
echo "if ! [ \"\$?\" = \"0\" ]; then echo \"grub-probe check failed - \$zfscheck\"; exit 2; fi" >> /mnt/setup-chroot.sh
echo "echo \"Success.\"" >> /mnt/setup-chroot.sh

echo "update-initramfs -u -k all"  >> /mnt/setup-chroot.sh

# you need sed to do this right!
# GRUB_CMDLINE_LINUX="root=ZFS=rpool/ROOT/ubuntu" <--- replace this

echo "update-grub">> /mnt/setup-chroot.sh
echo "i=\"0\"">> /mnt/setup-chroot.sh
echo "for f in \"$disks\"; do">> /mnt/setup-chroot.sh
echo "grub-install --target=x86_64-efi --efi-directory=/boot/efi${i} --botloader-id=ubuntu --recheck --no-floppy" >> /mnt/setup-chroot.sh
echo "umount /boot/efi${i}" >> /mnt/setup-chroot.sh
echo "i=$((i + 1))" >> /mnt/setup-chroot.sh
echo "done" >> /mnt/setup-chroot.sh

echo "zfs set mountpoint=legacy bpool/BOOT/ubuntu" >> /mnt/setup-chroot.sh
echo "echo \"bpool/BOOT/ubuntu /boot zfs nodev,relatime,x-systemd.requires=zfs-import-bpool.service 0 0\" >> /etc/fstab" >> /mnt/setup-chroot.sh
echo "zfs set mountpoint=legacy rpool/var/log">> /mnt/setup-chroot.sh
echo "echo \"rpool/var/log /var/log zfs nodev,relatime 0 0\" >> /etc/fstab" >> /mnt/setup-chroot.sh
echo "zfs set mountpoint=legacy rpool/var/spool">> /mnt/setup-chroot.sh
echo "echo \"rpool/var/spool /var/spool zfs nodev,relatime 0 0\" >> /etc/fstab" >> /mnt/setup-chroot.sh
echo "zfs set mountpoint=legacy rpool/var/tmp" >> /mnt/setup-chroot.sh
echo "echo \"rpool/var/tmp /var/tmp zfs nodev,relatime 0 0\" >> /etc/fstab" >> /mnt/setup-chroot.sh
echo "zfs set mountpoint=legacy rpool/tmp" >> /mnt/setup-chroot.sh
echo "echo \"rpool/tmp /tmp zfs nodev,relatime 0 0\" >> /etc/fstab" >> /mnt/setup-chroot.sh
echo "systemctl enable ssh">> /mnt/setup-chroot.sh



# create parker user automated way
echo "zfs create rpool/home/$admin" >> /mnt/setup-chroot.sh
echo "useradd $admin" >> /mnt/setup-chroot.sh
echo "cp -a /etc/skel/.[!.]* /home/$admin" >> /mnt/setup-chroot.sh
echo "chown -R ${admin}:${admin} /home/$admin" >> /mnt/setup-chroot.sh
echo "usermod -a -G adm,cdrom,dip,plugdev,sudo $admin" >> /mnt/setup-chroot.sh
echo "echo '${admin}:${rootpassword}' | chpasswd" >> /mnt/setup-chroot.sh

#create swap space, too if necessary




#exit 0








chmod +x /mnt/setup-chroot.sh
echo "Done."
chroot /mnt /setup-chroot.sh
#--login

#echo ""
#echo "Clearing chroot configuration script..."
#rm /mnt/setup-chroot.sh
#echo "Done."

#echo ""
#echo "Unmounting chroot mounts..."
#mount | grep -v zfs | tac | awk '/\/mnt/ {print $3}' | xargs -i{} umount -lf {}
#echo "Done."

#echo ""
#echo "Exporting zpools..."
#errors=`zpool export -a 2>&1 1>/dev/null`
#if ! [ "$?" = "0" ]; then
#	echo "Couldn't export mounted zpools - $errors"
#	exit 8
#fi
#echo "Done."

#echo "Please reboot - and set your boot device in the BIOS"
exit 0