Containers & Docker: The Modern Building Blocks of IT

Modern infrastructure no longer relies solely on virtual machines. Today’s systems depend on lightweight, portable, and scalable components — containers. They reshape how teams build, package, and operate applications, becoming a defining element of modern cloud‑native environments.
In this KLx Talks session, you’ll get a clear, practical introduction to Containers and Docker, understanding their architecture, how they differ from VMs, and how Docker simplifies building and running containerized applications.
Ideal for professionals with a technical background who want to understand the foundations of containerization.

Location: KLx headquarters — Av. Dom João II 43, 11th
Floor, 1990‑084 Lisboa, Portugal. This is an in-person event only.

Date & Time: Tuesday, March 10th, 2026 — 18:00 to 21:00

️ Agenda
18:00 – Welcome
18:20 – KLx Presentation
Speaker: Luís Ribeiro
18:30 – Opening Talk: What Is a Container?
Speaker: Fábio Oliveira
A conceptual introduction to containers, why they emerged, and how they fit into modern IT architecture.
18:45 – Deep Dive: Container Architecture
Speaker: Fábio Oliveira
Understanding images, layers, runtimes, isolation, namespaces, and cgroups — the internal mechanics of container technologies.
19:00 – Containers vs Virtual Machines
Speaker: Fábio Oliveira
A clear comparison of performance, resource usage, security models, and practical use cases.
19:15 – Docker Essentials
Speaker: Fábio Oliveira
A hands-on overview of how Docker builds and manages containers, including:

• Dockerfile basics
• Managing data with volumes
• How Docker networking works
• Using Docker Hub for image distribution

19:30 – Open Discussion, Q&A, Networking
21:00 – Wrap-up

Topics Covered

• What containers are & how they achieve isolation
• Container architecture (images, layers, runtimes)
• Key differences between containers and virtual machines
• How Docker builds and runs containers
• Understanding Dockerfiles and best practices
• Managing persistent data with Docker volumes
• Docker networking fundamentals
• Using Docker Hub for image sharing
• Real-world usage examples & open discussion

Speaker

• Fábio Oliveira - Fabio is a DevOps engineer and technical lead at KLx, working on backend development and complex system integrations in the banking sector. With a long background as a software developer, he combines deep expertise in traditional application servers with solid experience in modern CI/CD and cloud‑native ecosystems, including GitLab CI/CD, Argo CD, Kubernetes, and containerization. Passionate about automation, code quality, and performance, he focuses on transforming technical concepts into practical improvements that elevate software quality and enhance team efficiency

We draw your attention to the fact that photos will be taken during this event. They might be diffused on internal/external channels. If you do not authorize us to use your image in such ways, please inform us beforehand by contacting [communication@klx.pt]. We ensure that the use of your image will always be conducted with absolute respect for your honor and dignity. In any case, if you have questions about the treatment of your personal data, please contact [compliance@klx.pt].