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Today I finally had some time to cleaned up my Dockerfile for Magento 2. I am using Alpine Linux for most of my Magento 2 projects which usually includes NGINX, PHP-FPM and MariaDB.

While testing my updated Dockerfile I came across the following PHP notice which prevented the deployment scripts from finishing the Magento 2 setup.

The problem was simply a missing PHP extension php7.1-tokenizer which has resolved the issue after re-creating the container with –build.

 

PHP message: PHP Fatal error: Interface ‘SessionHandlerInterface’ not found in /var/www/src/vendor/ laravel/framework/src/Illuminate/Session/FileSessionHandler.php on line 10

Today I successfully installed my first October CMS project locally via composer / command line. The installation was pretty straightforward and worked surprisingly well on my Alpine Linux docker container which includes NGINXPHP-FPM and MariaDB.

However, when I tried to open the front-end I got the following error.

After a quick research I found the solution on Stackoverflow. I basically forgot to install the PHP extension php7-session inside my docker container. I manually installed the missing extension, but also updated my Dockerfile in case I have to rebuild my container.

After that I manually killed all PHP processes to make sure php-fpm loads the new extension with the next page reload.