The main security issue in the modern world is identification. How can we be sure that the person we are corresponding with or exchanging files with is really who they claim to be? How can we be sure that the files we receive have not been altered along the way? How can we be sure that the files we receive were actually sent by the person who sent them?

These questions are solved by signing the data being transmitted. A signature is some information that is generated using a private key and can be verified using a public key. If the signature is correct, then the data has not been altered in transit and it was sent by the person who sent and signed it.

When we build a Docker image of our application, we already know which version of the application will be in it. But often we don’t bother passing this information inside the container. Especially when it comes to web applications. However, this can be useful. For example, for error monitoring, it will definitely be helpful to know which version of the application crashed and when it was built.

In this article, I’ll explain how to pass information about the application version inside the container. This applies to applications in Go as well as web applications in Node.js. I’ll also show how to use this information inside the container.

To write my articles, I use Hugo, which is one of the most popular static site generators. It allows me to focus on writing content without getting distracted by technical details. Additionally, I use GitHub to store and manage the source code of my website. This enables me to easily track changes and make edits anytime and anywhere.

In this article, I will explain how I created my website using Hugo and optimized it for my own needs.

In order for the website to be accessible on the internet, it makes sense to publish it on some hosting platform. Such hosting platforms can be Netlify, GitHub Pages, GitLab Pages, Amazon S3, Google Cloud Storage, Firebase Hosting, Surge.sh, Aerobatic, CloudCannon, Neocities, GitBook, Heroku, Rackspace, OpenShift, CloudFront, Fastly, and others.

I decided to publish my website on GitHub Pages because it is free and convenient. Besides, since I already use GitHub to store and manage the source code of my website, it would be a logical choice. In this article, I will explain what needs to be done to publish a website on GitHub Pages using GitHub Actions.