Common Directives in Dockerfiles | The Docker Workshop

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• add metadata to a Docker image.

• organize the Docker images properly

• The LABEL Directive

• execute commands during the image build time

• The RUN Directive

• create a new layer on top of the existing layer

• install the required packages

• update the packages

• create users and groups

• provide this default initialization command

• The CMD Directive

• A Dockerfile can execute only one CMD directive.

• The FROM Directive

• The parent image is the starting point of our custom Docker image.