What are Docker, Dockerfile, and Docker Compose, and can you explain the concepts of PORT, MOUNT, and RUN in detail?

Question

Accepted Answer

Docker is a platform for developing, shipping, and running applications. Dockerfile is a script to create Docker images. Docker Compose is a tool for defining and running multi-container Docker applications.

Docker is a platform that allows you to package, distribute, and run applications in containers.
Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.
Docker Compose is a tool for defining and running multi-container Docker applications.
PORT in Docker is used to expose a specific port of the container to the host machine.
MOUNT in Docker is used to mount a directory from the host machine to the container.
RUN in Dockerfile is used to execute commands in a new layer on top of the current image and commit the results.

What are Docker, Dockerfile, and Docker Compose, and can you explain the concepts of PORT, MOUNT, and RUN in detail?

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