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Docker

Articles, podcasts, talks, and more about Docker.
Blog Post

Containers for tests and local development with Spring Boot 3.1

Spring Boot 3.1.0, the most recent minor release of Spring Boot 3, appeared in May. In this article, we will be taking a look at how the new support for Testcontainers and Docker Compose can help us with tests and local development.

Blog Post

How to use and build your own distroless images

Security and efficiency are key goals in production systems. This begins when we build our application images and look for a suitable base image. So what are good base images and how do distroless images fit into this picture?

Blog Post

Scraping a Docker Swarm service with Prometheus
Blog Post

Traefik v2 and Mastodon, a wonderful couple!

Traefik and Mastodon are a wonderful combination. However, practical guides for Traefik v2 are rare and Mastodon dropped its guide for deployment using docker. In this blog post I will show an easy solution for setting up a Mastodon instance behind Traefik as reverse proxy with almost all required configuration made in a self-contained docker-compose file.

Blog Post

Choose Your Docker Base Image Wisely

A while ago, I ran into a problem with my application that only occurred in production but not locally. The reason we use Docker both locally and in production is to prevent exactly that from happening. What went wrong?

Blog Post

Native Clojure with GraalVM
Blog Post

Secure Kubernetes Cluster

Containers and Kubernetes have greatly simplified the way we bring software into production. Applications can be packaged in container images and run on a Kubernetes cluster with 5000+ nodes. However, it should not be forgotten that, despite being encapsulated in containers, various aspects of safety still have an important role to play.

Blog Post

Taking Screenshots of DOM Elements

Now that PhantomJS is dead, we need an alternative. Turns out that Puppeteer, Google’s official remote-control API for Chrome, is just the ticket.

Blog Post

Docker images for developers