#!/usr/bin/env bash
# All the zfs packages in debian stretch
apt-get install -y dkms busybox-static
apt-get install -y initramfs-tools dh-autoreconf
apt-get install -y spl spl-dkms 
apt-get install -y linux-headers-$(uname -r) zfs-dkms zfs-initramfs zfsutils-linux
apt-get install -y zfs-zed

# linux default, mount partitions even if non-empty, the no option really only makes sense if the directory being mounted on has been declared as a mount point only and is therefore guaranteed to be empty.
sed -i "s,^\(DO_OVERLAY_MOUNTS=\).*,\1\'yes\'," /etc/default/zfs

# Allow readonly zfs to non-root users in sudoers (put in place by zfsutils-linux)
sed -ie 's/^#//' /etc/sudoers.d/zfs

## or change below to change sudo behavior further:
#cat > /etc/sudoers.d/zfs << 'EOF'
## Allow read-only ZoL commands to be called through sudo
## without a password. Remove the first '#' column to enable.
##
## CAUTION: Any syntax error introduced here will break sudo.
##
## Cmnd alias specification
#Cmnd_Alias C_ZFS = \
#  /sbin/zfs "", /sbin/zfs help *, \
#  /sbin/zfs get, /sbin/zfs get *, \
#  /sbin/zfs list, /sbin/zfs list *, \
#  /sbin/zpool "", /sbin/zpool help *, \
#  /sbin/zpool iostat, /sbin/zpool iostat *, \
#  /sbin/zpool list, /sbin/zpool list *, \
#  /sbin/zpool status, /sbin/zpool status *, \
#  /sbin/zpool upgrade, /sbin/zpool upgrade -v
#
## allow any user to use basic read-only ZFS commands
#ALL ALL = (root) NOPASSWD: C_ZFS
#EOF

modprobe zfs