Which one of these describes “CMD” Dockerfile instruction the best? (A) It acts as the first command that will be executed when the image is used to create a container
(B) It helps copy files inside the image during the build process
(C) It helps in syncing the files between multiple images
(D) It helps optimize the size of the image
Which one of these describes “CMD” Dockerfile instruction the best?
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The correct answer is: (A) It acts as the first command that will be executed when the image is used to create a container.
Explanation: The `CMD` instruction in a Dockerfile specifies the default command that will be executed when a container is run from the image. It sets the command and its parameters but can be overridden when running the container. This makes it crucial for defining the container’s behavior when it’s started, effectively acting as the initial command for execution. Let me know if you have more questions!