Docker is the cornerstone of today's development! Let's overview quickly how we use it in JVM development, and then transition to practical examples. We will start with a simple Docker image containing a popular "one fat JAR" and look into its downsides (deployment speed, traffic volume). To address them, we will discuss the strategy of splitting the JAR into multiple layers and using multistage Dockerfiles, gradually improving our image. Join me to learn how to build the ultimate Docker image for Spring applications.

Talk Level:
INTERMEDIATE

Bio:
Former sysadmin, now a developer with a psychologist background, who not only likes solving interesting problems (technical as well as business), but also is always trying some new things. Likes to form an opinion about these things and tell this opinion to others. Tried Kotlin very early, even before its first release, and started using it in production shortly after release. Likes word-play and jokes, but is also capable of serious discussion.