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docs: warn about build data tx & ADD w/o context

This updates the documentation to mention that:
1. a lot of data may get sent to the docker daemon if there is a lot of
data in the directory passed to docker build
2. ADD doesn't work in the absence of the context
3. running without a context doesn't send file data to the docker
daemon
4. explain that the data sent to the docker daemon will be used by ADD
commands

unclejack authored on 2013/06/07 04:06:12
Showing 1 changed files

docs/sources/commandline/command/build.rst

History View file @ efa7ea5

@@ -19,10 +19,14 @@ Examples
                          docker build .
                     -This will take the local Dockerfile
                     +| This will read the Dockerfile from the current directory. It will also send any other files and directories found in the current directory to the docker daemon.
                     +| The contents of this directory would be used by ADD commands found within the Dockerfile.
                     +| This will send a lot of data to the docker daemon if the current directory contains a lot of data.
                     +|
                      .. code-block:: bash
                          docker build -
                     -This will read a Dockerfile form Stdin without context
                     +| This will read a Dockerfile from Stdin without context. Due to the lack of a context, no contents of any local directory will be sent to the docker daemon.
                     +| ADD doesn't work when running in this mode due to the absence of the context, thus having no source files to copy to the container.