DockerFile - Run command

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The RUN instruction will execute any commands in a new layer on top of the current image and commit the results.


Tool installation

the package are sorted in alphabetical order

RUN apt-get update && apt-get install -y \
        package-bar \
        package-baz \

Pipeline error handling

Pipe: set -o pipefail will fail the pipeline if one stage fails

RUN set -o pipefail && wget -O - | wc -l > /number

Documentation / Reference

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Docker - History

The history command permits you to see the commit history of your image The RUN command in a dockerfile creates automatically a commit
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DockerFile - Instruction

Basis Image: Tool installation (note: the package are sorted in alphabetical order) More ... Defines argument that can be passed by the build command line ...
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What is the ENTRYPOINT docker instruction?

ENTRYPOINT is a docker instruction that defines the default docker entrypoint It has two different behavior that depends on the assignment format. ENTRYPOINT has the following forms: Command line...

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