jails AppJail with multiple zpools?

Azulinho · Nov 24, 2024

Hi all and DtxdF in particular,

I am using AppJail and fairly happy with it so far, it however its workflow is mapped to a single zfs zpool and I have multiple zpools in this box of mine. I am keen to spread out the workloads across all my zpools.

will have a dig through the codebase to see what sort of changes could be required to support multiple zpools, but wanted to drop the question here to see if anyone has a working workflow for appjail and multiple pools

thanks a million
- azul

DtxdF · Nov 26, 2024

Hi Azulinho

This is not supported by AppJail, but this does not mean that you cannot separate your data and put it in other datasets of other zpools. For example, suppose I want to deploy two services, filebrowser and flatnotes, but I want to store the flatnotes data on my slow HDD and the filebrowser data on my fast SSD.

filebrowser:
.env:

Code:

DIRECTOR_PROJECT=filebrowser
TAG=14.1

appjail-director.yml:

Code:

options:
  - virtualnet: ':<random> default'
  - nat:

services:
  filebrowser:
    name: filebrowser
    makejail: ./Makejail
    volumes:
      - db: filebrowser-db
      - log: filebrowser-log
      - www: filebrowser-www
    arguments:
      - filebrowser_tag: !ENV '${TAG}'
    start-environment:
      - FB_NOAUTH: 1

default_volume_type: '<volumefs>'

volumes:
  db:
    device: /var/appjail-volumes/filebrowser/db
  log:
    device: /var/appjail-volumes/filebrowser/log
  www:
    device: /var/appjail-volumes/filebrowser/www

Makejail:

Code:

INCLUDE gh+DtxdF/efficient-makejail
INCLUDE gh+AppJail-makejails/filebrowser

flatnotes:

.env:

Code:

DIRECTOR_PROJECT=flatnotes
TAG=14.1

appjail-director.yml:

Code:

options:
  - virtualnet: ':<random> default'
  - nat:

services:
  flatnotes:
    name: flatnotes
    makejail: ./Makejail
    start-environment:
      - FLATNOTES_AUTH_TYPE: 'none'
    volumes:
      - flatnotes-data: flatnotes-data
    arguments:
      - flatnotes_tag: !ENV '${TAG}'

default_volume_type: '<volumefs>'

volumes:
  flatnotes-data:
    device: /var/appjail-volumes/flatnotes/data

Makejail:

Code:

INCLUDE gh+AppJail-makejails/flatnotes
INCLUDE gh+DtxdF/efficient-makejail

Suppose /var/appjail-volumes is a dataset located on my slow HDD and /super-fast is located on my fast SSD, I just have to change all device items in the volumes section of my appjail-director.yml file. For applications inside the jails it makes no difference if I choose HDD or SSD.

This, of course, uses Director, but you can accomplish this with a few commands with AppJail [1], although I recommend that you use something like Director or a Makejail to automate this and know for the future what instructions you used.

[1] https://appjail.readthedocs.io/en/latest/fs-mgmt/

jails AppJail with multiple zpools?

Azulinho

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DtxdF