62 posts tagged with "docker"

When I was young...er than today, during my studies, I was playing with the x86 Assembly language on my 386DX40 computer; this was in the years 1993-1995. The beginning of Windows 3.1 that I didn't like. If someone had asked me whether graphical interfaces would be successful, I would have said no, of course not.

I remember that I wrote a resident program (TSR for Terminate and Stay Resident) which, once loaded into memory, monitored the keyboard and recorded the keys that had been pressed in a file on the hard disk. And yes, it was a password stealer. Just for fun and, above all, for the challenge it represented.

And now, in 2023, I was wondering whether it was still possible to run .asm files on my computer. It was an excellent pretext for this article.

Remember a few years ago when you wanted to learn a new programming language such as Python? What did you need before you could even start programming your first Hello World? You had to install the language on your computer; maybe you also had to get a lot of libraries/dependencies; you had to spend time configuring your machine before you could even start writing your first script.

That's all over with the advent of Docker and the concept of containers.

This time, we'll play with Python for this article. I'm discovering Python at the same time as writing this article: at this precise moment, I've never written .py scripts.

In this post, we'll play with Docker and Java. Since there are ready-to-use Java images for Docker you don't need to install or configure anything other than Docker.

But what a joy it is to be able to draw diagrams by, well, just writing text. Some tools are better known than others, e.g. Mermaid.

Did you know https://diagrams.mingrammer.com/? Let's explore it using, of course, a Docker ready-to-use image.

When working with a Docker container, data can be persistent or not. Imagine you're creating a localhost website with Joomla, WordPress or any other tool (Laravel, Symfony, etc.).

You've perfectly created the various Docker files needed to run the local site, you've run the command docker compose up --detach to start the containers and now you're busy installing the site. After a few moments, your local site is up and you can start developing its functionalities.

By default, if you haven't taken any precautions, the moment you stop the container (docker compose down), you'll kill your site, i.e. by default, having not taken care to save your data (your site, your database), everything will be lost and reset the next time you run docker compose up --detach. Well... Maybe that was your wish (something totally ephemeral); maybe not;

Version updated on November 21, 2023 after a discussion with Alexandre about making his Docker image available on hub.docker.com

Based on their documentation, FrankenPHP is 3.5 faster than PHP FPM.

It is still fairly young for use on production sites, but because it's so promising, it's certainly worth playing with when developing locally.

Alexandre Elisé has written a script to use FrankenPHP with Joomla. You can find the source here: https://github.com/alexandreelise/frankenphp-joomla.

If you don't have Docker yet, please consult my Install Docker and play with PHP post first.

When running Docker without specifying a volume, everything done during the execution of Docker is done in memory. In other words: if the PHP script you run from Docker creates folders or files, these will never be created on your disk. They will be created exclusively in memory.

Docker can be installed free of charge for personal or small-scale use: https://www.docker.com/products/personal/.

You can install it on Linux, Mac or Windows.

The easiest way, under Windows, is to use Docker Desktop.

https://dev.to/mefaba/installing-wsl-on-another-drive-in-windows-5c4a

By default, the Linux distribution is installed on your C: drive. If, like me, you have a D: drive with almost nothing on it, it can be really interesting to move Linux on that second drive.

Docusaurus.io

• Updated 2023-11-03, search engine, prism and sitemap added.
• Updated 2023-11-05, adding giscus.
• Updated 2023-12-21, adding giscus.json to allow comments to be displayed only on the blog.

Here are the steps I followed to create this blog.