The talk was a basic and friendly introduction to databases and containers. The speaker explained the concept of containers and how they can be used to package and isolate software applications. They focused on Docker, which is one of the popular tools for containerization. The Docker architecture was explained, including the client-server model and the role of the Docker daemon. The speaker then discussed running databases, specifically the Percona server for MySQL, in containers. They explained the importance of volumes for persisting data in containers and demonstrated how to create and use volumes in Docker. The process of backup and restore for databases in containers was also covered, with recommendations for using tools like MySQL dump. The speaker provided some best practices for using databases in containers, including monitoring and resource management. The limitations and potential performance impacts of running databases in containers were also discussed, with the recommendation to focus on optimizing the database configuration.