What is Docker Images and Exaplin in 10 bullet lines?

  • Images are the base of a container.
  • Images are like classes and containers are like objects.
  • We can create any number of containers from an image.
  • Images can be created from Dockerfile or we can pull from registry.
  • Images can have multiple layers.
  • Images have root file systems , PID, USER namespace etc.
  • Image layers are named with SHA256 algorithm.