• Docker is a software Development platform to deploy applications.
• Apps are packaged in containers athat can be run on any O.S.
• Apps run the same, regardless of where they’re run.
• that includes:
  • Any Machine
  • No compatiblity Issues
  • Less work
  • Easier to maintain & deploy
  • works with Any Language & OS.
  • Scale container extremely quickly

Docker images are stored in a docker repository. There are 2 types of docker repository: Public (DockerHub) and Private (Amazon Elastic Container Registery or ECR)

In case of AWS, this is all the fundamental knowledge required to learn about ECS,ECR,Fargate, and EKS!