Docker Captain Take 5 – Nana Janashia
December 8, 2025 · 527 words · 3 min
In a project I was working on as a junior software developer. I joined a team developing an IoT syst
In a project I was working on as a junior software developer. I joined a team developing an IoT system where they had selected some of the cool modern technologies and Docker was one of them. Since Docker was just one of the many technologies we were using in the project, and because of the project deadlines, I was only able to learn just bits and pieces of Docker concepts during the project implementation phase, instead of a proper thorough introduction right at the beginning. So it took me two years to get a good big picture understanding of Docker, where I felt confident I really knew the tool. From today’s perspective, I wish I had just worked through a 3-4 hour crash course and properly learned it at the beginning. I use it a lot when playing around with containers, testing and debugging stuff. Running to check for any vulnerabilities in your images. This can give you a lot of confidence to know what kind of images you are producing and deploying. For I built a scenario, where: It was really fun to see how Docker can be integrated so well with all these different technologies 🙂 A very challenging and rewarding project was creating a . The most difficult part was to structure the course in a way that would not be overwhelming. Because many of the k8s administration concepts are pretty advanced, my challenge was to explain them in a super easy way to help my students to really understand how K8s works in the background and be able to administer it. Our naive optimistic estimation of creating the course was pushed from 1 month to 3 months of working intensively on the course. Generally, I have learned new technologies and concepts every week for the last few months for my videos across Youtube and courses. This was sometimes very difficult, because it was just constantly deep diving into various technologies and concepts. Probably something related to Docker registry 🙂 I already planned and am super excited about doing a complete update of and Docker module in our bootcamp. Because so many great updates have been made to Docker, I want to include all those improvements and new features into my educational content. Learnings from various big real-life projects using Docker. What challenges they had to overcome related to Docker, how they did it. What improvements have impacted them the most and what remains some of the biggest challenges in regards to Docker till today. I’m excited to see how the whole DevSecOps space develops in the next few years. Security has been in the background traditionally, but with the popularity of DevOps I think we will see it shifting to the left and I’m excited to see new technologies that solve security issues on different levels. I finally decided to start learning Kickboxing as a balance for sitting in front of the computer the whole time 🙂 Puppies 🐶 Sweet 🧁 Beach with mountains around 💙 – docker & k8s colored heart 😀