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Dockerfiles are an essential tool in the development and deployment of Docker-based applications. They are essentially scripts that define the build process for a Docker image.

In the realm of software design, where structure and reusability reign supreme, the Template Method Pattern emerges as a guiding light.

So I suppose I'll just start out going over the very basics. Which so far is mostly what I know. So if you don't know much if anything about it this post is probably for you. So anyway, what is docker?

You might come to a situation where you will need to build a docker image where security policies do NOT allow for root-based images. And while searching you might come across articles like this one.

As I'm not terribly familiar with Oracle (I'm working to learn more) I ran into this particular error code which had me confused as to the cause. Eventually we narrowed down the cause and have a better idea as to why and I'll try my best to explain here. At least in my particular project.

I'm going to discuss a way to setup remote debugging via a virtual machine.

I just remembered an issue I was facing but had not found much documentation for. I was setting up the simplesamlphp library by creating a symbolic link to the library from the docroot. However I was constantly running into an "Permission denied" or Access Denied error.

If you're starting out working with Oracle and PHP (my sympathies) then it's possible you're having issues trying to understand the best ways to setup autoincrements with your database tables as well as retrieving the inserted ID upon running insertion queries as I did.

Recently I had to try and connect to Oracle via PHP and had naively assumed it was about as straight-forward as connecting to something like MySQL or Postgres. It is not.

I'm going to try and outline some potential issues and the steps which would be required to do so. 

If you run across this error in Drupal 8:

Fatal error: Class Drupal\Core\Session\SessionHandler contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (SessionHandlerInterface::read)