Cant get Nextcloud to work via Portainer (Can you check my stack)

    I am struggling to get Nextcloud working via Portainer on OMV6, when creating my admin user and initial setup, I constantly get the error:

    Error while trying to create admin user: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000] [1045] Access denied for user 'nextcloud'@'172.19.0.3' (using password: YES)


    I have tried wiping the stack, containers, and images and re-pulling, tried various combinations of passwords, tried username as nextcloud, database name as nextcloud and database host as db. I am wondering if the issue is with my volumes or a permissions? I have tried using guides online but none seem to work or they assume you are using a proxy manager, which I don't want to do as I want this to be a local only instance which I access via Tailscale.


    Anyway, here is my stack, I would really appreciate if someone could lend a hand as I have been trying for days:


    version: '2'


    volumes:

    nextcloud:

    db:


    services:

    db:

    image: mariadb

    container_name: nextcloud-database

    restart: always

    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb-file-per-table=1 --skip-innodb-read-only-compressed

    volumes:

    - /srv/dev-disk-by-uuid-1e54ed30-70b5-4c8b-8f8e-dabce498af23/NextcloudDB/AppData/Nextcloud/database:/var/lib/mysql:/var/lib/mysql

    environment:

    - MYSQL_ROOT_PASSWORD=placeholder1

    - MYSQL_PASSWORD=placeholder1

    - MYSQL_DATABASE=nextcloud

    - MYSQL_USER=nextcloud


    app:

    image: nextcloud

    container_name: nextcloud

    restart: always

    ports:

    - 9323:80

    links:

    - db

    volumes:

    - /srv/dev-disk-by-uuid-1e54ed30-70b5-4c8b-8f8e-dabce498af23/Nextcloud/Nextcloud/data:/var/www/html/data

    - /srv/dev-disk-by-uuid-1e54ed30-70b5-4c8b-8f8e-dabce498af23/Nextcloud/AppData/Nextcloud/main:/var/www/html:/var/www/html

    - /srv/dev-disk-by-uuid-1e54ed30-70b5-4c8b-8f8e-dabce498af23/Nextcloud/AppData/Nextcloud/config:/var/www/html/config

    - /srv/dev-disk-by-uuid-1e54ed30-70b5-4c8b-8f8e-dabce498af23/Nextcloud/AppData/Nextcloud/apps:/var/www/html/custom_apps:/var/www/html/custom_apps

    environment:

    - MYSQL_PASSWORD=placeholder

    - MYSQL_DATABASE=nextcloud

    - MYSQL_USER=nextcloud

    - MYSQL_HOST=db

    If you want to use nextcloud official docker, you need to ask help on their forum/GitHub.


    If you want to use nextcloud docker supported on the forum, follow any of the guides in that section.


    And at first look, your MySQL password doesn't match.

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