Question - Explain Docker Images, Docker Hub, Docker File?
Answer -
Docker images: These are files that contain multiple layers and are used to execute code inside the Docker container. Images are built from instructions for an executable version of an application. Images speed up docker build by allowing each step to be cached.;
Docker hub: It is a service that finds and shares container images within a team. You can push and pull images, access private repositories of container images, build container images automatically from Github (or Bitbucket), and push them to DockerHub. Docker itself provides the service. Read more.
Docker file: It is a text document used to build an image. It contains instructions and commands to build the image. Docker reads the commands and assembles the image automatically.