Testing the docker build context

docker_test_build_context.md

Docker Test Build-Context

Checking what is inside the context sent to the docker daemon and whether the configured .dockerignore is behaving as expected can be achieved with the following guide.

Create a dockerfile with the name Dockerfile.build-context

FROM busybox
COPY . /build-context
WORKDIR /build-context
CMD find .

Then the created dockerfile can be built and run.

docker build -f Dockerfile.build-context -t build-context .
docker run --rm -it build-context

This will print the content of the build context allowing to analyze the content.