Support for PostgreSQL database

[mreho]

Hello,

Here are some changes for PostgreSQL support.

I only copied the localtos3.php file to a new one, and adapted the queries for PostgreSQL, as well as backup system.

This is not the cleanest way to do this obviously, but as it act as a one-shot tool I didn't want to burn to much gaz on it :)

Tested and working perfectly on my Nextcloud installation (v30.0.4, 25 users, 3 TB data to migrate).

Enjoy !

[neil-lcv-cs]

Hi there,

I’ve used your script to successfully migrate our storage from local to S3. Thanks!
Here’s our setup characteristics:

• Docker image nextcloud:30-fpm, latest version
• 100 users, ~5GB disk storage
• PostgreSQL 16
• PHP 8.2.27 (as used by the official Docker image)
• Using the nobody user for the FPM process

I had to tweak the script to make it work, though. Here’s the list of changes I made:

• Set the PATH_BASE variable correctly. In the official Docker image, the path of Nextcloud is /var/www/html/, thus PATH_BASE is /var/www/.
• OCC_BASE uses php instead of php8.3. The official Docker image only ships this binary.
• The autoload file is located at /lib/composer/autoload.php instead of /vendor/autoload.php. There is no vendor folder in the Docker image.
• Had to edit the occurrences of $CONFIG['dbhost'] in the script; we are using a custom port for PostgreSQL and pg_connect() doesn’t support a hostname using the IP:PORT syntax. Replaced with host=IP port=IP.
• Similar edit for the pg_dump command using -h $CONFIG['dbhost'] ; changed to -h IP -p PORT.

I had to enter the following commands too.

As root:

apt update
apt install -y libpq-dev
docker-php-ext-install pgsql

# workaround for postgres client in Bookworm shipped with version 15, while our server is using PGSQL 16
echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" > /etc/apt/sources.list.d/pgdg.list
apt install -y gnupg
curl -s https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
apt install postgresql-client-16

# workaround: composer is not shipped in the Docker image
curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

Then, as a regular user:

composer require aws/aws-sdk-php
php -d memory_limit=1024M /var/www/html/localtos3-postgres.php

I have created and configured the backups folder beforehand.

EDIT: Forgot to mention, one of our users had a single quotation mark ' in their Nextcloud ID, it broke the script. Had to delete the user before proceeding.

Hope it’ll help!

[mreho]

Hey, glad to hear that it could help the community :)