SCALE App - Autostart after Unlocking Dataset

TrueNAS General
1

Hello,

my TrueNAS SCALE Dragonfish-24.04.2.1 hosts Syncthing as an App. Syncthing is using the content of a passphrase encrypted dataset and, therefore, cannot access the dataset on system startup, until I manually unlock the dataset.
My Virtual Machines which are located on passphrase encrypted datasets do automatically start after I unlocked the dataset via passphrase. However, the Syncthing App is not automatically starting after the unlock and I have to trigger the start of the App manually.

Is this the way it should be?
Is it possible to auto-start the App after the dataset got unlocked?

Thanks a lot in advance,

Thomas

2

Is really noone else here with Apps accessing locked datasets?

3

Did you ever find a solution to this? I have the same inconvenience.

4

No, I don’t have a solution, yet. This still seems to be a bug in TrueNAS and I have to manually (re-)start the App everytime.

5

Has anyone found a solution for this? I’m in the same boat, custom app in which in need to mount a passphrase protected path. So after every reboot the app is in “crashed” state and needs to be started manually after unlocking the encrypted dataset.

6

No, still no solution.

7

If VMs work, have you considered running everything as VMs with the ‘app’ functionality in a VM instead of as an App?

8

Running a VM would work, but if there is a feature called “Apps”, I expect it to also work without issues.

9

You can try Report a Bug if you believe it isn’t working as it should or creating a Feature Request on the forum. I figure you have given it enough time for replies. Github might be an option too GitHub · Where software is built

10

You could also try to write a script as a cronjob which checks for dataset unlock and then starts the app. I don’t know if it’s possible but maybe I’ll try that

11

So I just use this small script now. It’s on an unencrypted dataset and runs as a cronjob every minute.

#!/bin/sh
DATASET="tank/YOURENCRYPTEDDATASET"
APP="YOURAPPNAME"

KS="$(zfs get -H -o value keystatus "$DATASET" 2>/dev/null)"
[ "$KS" = "available" ] || exit 0

STATE="$(midclt call app.query | python3 -c '
import sys, json
app = sys.argv[1]
data = json.load(sys.stdin)
for a in data:
    if a.get("name") == app:
        print(a.get("state",""))
        break
' "$APP")"

[ "$STATE" = "RUNNING" ] && exit 0

midclt call app.start "$APP" >/dev/null 2>&1
exit 0