Update zfs_bootstrap.sh

zfs_bootstrap.sh

@@ -1,9 +1,14 @@
 #!/bin/sh
 
 # Check:
-# https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror
+# https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/9.0-RELEASE
 # http://wp.strahlert.net/wordpress/zfs-2/expanding-zpool/
 
+# Tested on FreeBSD 10 and 11
+
+###############################################################
+# WARNING: Go through line by line and adjust where necessary #
+###############################################################
 
 # Create Partition Table
 echo "Create Partition Table"
@@ -17,14 +22,14 @@ gpart create -s gpt ada1 # Main HDD
 
 # Create Boot Partition
 echo "Create Boot Partition"
-gpart add -a 4k -s 64k -t freebsd-boot ada0
+gpart add -a 4k -s 512k -t freebsd-boot ada0
-gpart add -a 4k -s 64k -t freebsd-boot ada1
+gpart add -a 4k -s 512k -t freebsd-boot ada1
 
 
 # Create Swap Partitions
 echo "Create Swap Partitions"
-gpart add -a 4k -s 4G -t freebsd-swap -l swap0 ada0
+gpart add -a 4k -s 8G -t freebsd-swap -l swap0 ada0
-gpart add -a 4k -s 4G -t freebsd-swap -l swap1 ada1
+gpart add -a 4k -s 8G -t freebsd-swap -l swap1 ada1
 
 
 # Create Main Partitions
@@ -51,15 +56,23 @@ gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada1
 # gpart add -a 4k -t freebsd-zfs -l l2arc1 ada3
 
 
+# Load ZFS extensions
+kldload opensolaris.ko
+kldload zfs.ko
+
+
+# Force ZFS to use 4k sectors
+sysctl vfs.zfs.min_auto_ashift=12
+
 # Create ZFS Pool
 echo "Create ZFS Pool"
-zpool create tank mirror /dev/gpt/disk0 /dev/gpt/disk1
+zpool create -f tank mirror /dev/gpt/disk0 /dev/gpt/disk1
 
 # Set proper mountpoint
 echo "Setting Mountpoint"
 zfs set mountpoint=/ tank
 
-# Export and import the Pool 
+# Export and import the Pool
 zpool export tank
 zpool import -o altroot=/mnt -o cachefile=/var/tmp/zpool.cache tank
 
@@ -67,7 +80,6 @@ zpool import -o altroot=/mnt -o cachefile=/var/tmp/zpool.cache tank
 echo "Enabling Compression"
 zfs set compression=lz4 tank
 
-
 # Add ZIL and L2ARC
 # echo "Add ZIL and L2ARC"
 # zpool add tank log mirror /dev/gpt/zil0 /dev/gpt/zil1
@@ -85,21 +97,29 @@ echo "Installing FreeBSD"
 cd /usr/freebsd-dist
 export DESTDIR=/mnt
 for f in base.txz lib32.txz kernel.txz doc.txz ports.txz src.txz;do
-  (cat $f | tar --unlink -xvpJf - -C ${DESTDIR:-/}); 
+  (cat $f | tar --unlink -xvpJf - -C ${DESTDIR:-/});
 done
 
 cp /var/tmp/zpool.cache /mnt/boot/zfs/
 
+echo "Enter hostname FQDN"
+read HOSTNAME
+
+echo "Enter last public IP octet"
+read IP_ENDING
+
+echo "Enter username"
+read USERNAME
 
 cat > /mnt/etc/rc.conf << RCCONF
-hostname="my.host.name"
+hostname="$HOSTNAME"
 
 zfs_enable="YES"
 
 # Network
 
-defaultrouter="xxx.xxx.xxx.xxx"
+defaultrouter="0.0.0.0"
-ifconfig_em1="inet xxx.xxx.xxx.xxx/xx"
+ifconfig_igb0="inet 0.0.0.$IP_ENDING/32"
 
 # Services
 sendmail_enable="NONE"
@@ -114,8 +134,43 @@ cat > /mnt/etc/fstab << FSTAB
 FSTAB
 
 
-cat > /mnt/boot/loader.conf << LOADER
+cat >> /mnt/boot/loader.conf << LOADER
 zfs_load="YES"
 vfs.root.mountfrom="zfs:tank"
-vfs.zfs.arc_max="16G"
+vfs.zfs.arc_max="8G"
 LOADER
+
+cat >> /mnt/etc/sysctl.conf << SYSCTL
+vfs.zfs.min_auto_ashift=12
+SYSCTL
+
+
+cat > /mnt/etc/resolv.conf << RESOLV
+nameserver 0.0.0.0
+nameserver 0.0.0.0
+RESOLV
+
+
+# Mount a devfs to have /dev/random /dev/zero etc in our chroot
+mount -t devfs none /mnt/dev
+
+# Bootstap pkg and install minimal packages for ansible
+chroot -u root -g wheel /mnt/ env ASSUME_ALWAYS_YES=YES pkg bootstrap
+chroot -u root -g wheel /mnt/ env ASSUME_ALWAYS_YES=YES pkg install sudo zsh
+
+# Add user
+chroot -u root -g wheel /mnt/ pw useradd -n $USERNAME -u 1001 -s /usr/local/bin/zsh -m -d /home/$USERNAME -G wheel -h 0
+
+# Fetch user pub key from github
+mkdir -p /mnt/home/$USERNAME/.ssh
+
+# This fetches the pub key from the sepcified github users and adds them 
+# to the .authorized_keys of the new system user
+echo "List of Github users for pubkey retrieval (space separated):"
+read users
+
+for user in $users; do
+  fetch https://github.com/$user.keys --no-verify-peer -o - >> /mnt/home/deploy/.ssh/authorized_keys
+done
+
+chown -R 1001:1001 /mnt/home/$USERNAME/.ssh