Alternative non-bpool/rpool zpool mount systemd service for ubuntu 19.10

README

Big THX to Satmandu.
I just forked his scripts and added a README (https://gist.github.com/satmandu/4da5e900c2c80c93da38c76537291507)

HowTo:

create /lib/systemd/system/zpool-local.service and set your pool name (mine: tank) and the startup priority/Dependencies:
  
  Before=smbd.service snap.lxd.daemon.service
  ExecStart=+/usr/local/sbin/mount_zfs.sh tank
 
create /usr/local/sbin/mount_zfs.sh
chmod +x /usr/local/sbin/mount_zfs.sh
systemctl enable zpool-local.service
systemctl start zpool-local.service
systemctl status zpool-local.service
reboot and cross your fingers

Regards, Flo.

mount_zfs.sh

#!/bin/bash -e
#export PS4='+(${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
# Place in /usr/local/sbin/mount_zfs.sh
USAGE="Usage: $0 zpool1 zpool2 zpool3 ... zpoolN"
MOUNTATTEMPTS=50
COUNTER=1

if [ "$#" == "0" ]; then
        echo "$USAGE"
        exit 0
fi

mount_zpool () {
[[ $COUNTER -ge $MOUNTATTEMPTS ]] && return 1
if zpool list | grep "${pool}" > /dev/null; then
    echo "${pool} already mounted."
    COUNTER=$MOUNTATTEMPTS
    return 1
else
    echo "${pool} mount attempt ${COUNTER}."
    zpool import "${pool}"
    if ! (zpool list | grep "${pool}" > /dev/null); then
        echo "${pool} mount attempt ${COUNTER} failed."
        sleep "${SLEEP}"
        ((COUNTER=COUNTER+1))
        ((SLEEP=SLEEP+1))
        return 0
    else
        echo "${pool} mounted."
        return 1
    fi
fi
}

while (( "$#" )); do
pool="${1}"
SLEEP=1
        if  zpool list | grep "${pool}" > /dev/null; then
                echo "${pool} already mounted."
        else
        while mount_zpool ; do
                echo "${pool} mount complete."
        done
        fi
shift
done

zpool-local.service

[Unit]
Description=Create Local ZFS mounts
# Placed in /lib/systemd/system/zpool-local.service
Requires=systemd-udev-settle.service
After=systemd-remount-fs.service
After=systemd-udev-settle.service
# Usage: Before=smbd.service containerd.service ...service
Before=smbd.service snap.lxd.daemon.service

[Service]
Type=oneshot
# Usage: ExecStart=+/usr/local/bin/mount_zfs.sh zpool1 zpool2 zpool3 ... zpoolN
ExecStart=+/usr/local/sbin/mount_zfs.sh tank

[Install]
WantedBy=multi-user.target