Docker images

Docker images are executable packages for running containers. Docker uses registries to distribute images. By default, JetBrains Fleet uses Docker Hub, which is a public registry with all the most common images, such as various Linux flavors, database management systems, web servers, and runtime environments. There are other public and private Docker registries, and you can also deploy your own registry server. .

Depending on your development needs, you can use Docker for the following:

• Pull pre-built images from a Docker registry

  For example, you can pull an image that runs a PostgreSQL server container to test how your application will interact with your production environment.

• Build images locally from a Dockerfile

  For example, you can build an image that runs a container with a specific version of the Java Runtime Environment (JRE) that your application requires.