Merge pull request #4273 from SvenDowideit/docker-build-rm
reinforce that docker build --rm is a good default to use
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4f20538f73
1 changed files with 10 additions and 1 deletions
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@ -197,6 +197,8 @@ is given as ``URL``, then no context is set. When a Git repository is set as
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``URL``, then the repository is used as the context. Git repositories are
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cloned with their submodules (`git clone --recursive`).
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.. note:: ``docker build --rm`` does not affect the image cache which is used to accelerate builds, it only removes the duplicate writeable container layers.
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.. _cli_build_examples:
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.. seealso:: :ref:`dockerbuilder`.
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@ -206,7 +208,7 @@ Examples:
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.. code-block:: bash
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$ sudo docker build .
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$ sudo docker build --rm .
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Uploading context 10240 bytes
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Step 1 : FROM busybox
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Pulling repository busybox
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@ -229,6 +231,9 @@ Examples:
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---> Running in 02071fceb21b
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---> f52f38b7823e
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Successfully built f52f38b7823e
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Removing intermediate container 9c9e81692ae9
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Removing intermediate container 02071fceb21b
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This example specifies that the ``PATH`` is ``.``, and so all the files in
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the local directory get tar'd and sent to the Docker daemon. The ``PATH``
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@ -243,6 +248,10 @@ The transfer of context from the local machine to the Docker daemon is
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what the ``docker`` client means when you see the "Uploading context"
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message.
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The ``--rm`` option tells Docker to remove the intermediate containers and
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layers that were used to create each image layer. Doing so has no impact on
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the image build cache.
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.. code-block:: bash
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