Computer scienceSystem administration and DevOpsDockerBuilding images with Dockerfile

Dockerfile (COPY, ADD, ENV, ARG)

Declaring ENV variables

Report a typo

What will happen when you run this Dockerfile?

FROM ubuntu:22.04
 
LABEL author=HyperUser 

ENV $HOST_FILE=demo.txt
ENV $IMAGE_DESTINATION="/tmp"
COPY HOST_FILE IMAGE_DESTINATION

ENTRYPOINT ["ls", "/tmp"]

Select one option from the list

Copying will fail because ENV variable usage format is wrong in the COPY instruction.

Copying will fail because ENV variable declarations are incorrect.

Docker will build the image successfully.

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