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Add notes about single-quotes

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Signed-off-by: Doug Davis <dug@us.ibm.com>
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Doug Davis 2014-09-11 10:09:18 -07:00
parent 2d1c8bd786
commit b47a2fbdc5
1 changed files with 16 additions and 0 deletions
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16
docs/sources/reference/builder.md
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@ -182,6 +182,10 @@ commands using a base image that does not contain `/bin/sh`.
> passing in the desired shell. For example,
> `RUN ["/bin/bash", "-c", "echo hello"]`
> **Note**:
> The *exec* form is parsed as a JSON array, which means that
> you must use double-quotes (") around words not single-quotes (').
The cache for `RUN` instructions isn't invalidated automatically during
the next build. The cache for an instruction like `RUN apt-get
dist-upgrade -y` will be reused during the next build. The cache for
@ -219,6 +223,10 @@ instruction as well.
> instruction, both the `CMD` and `ENTRYPOINT` instructions should be specified
> with the JSON array format.
> **Note**:
> The *exec* form is parsed as a JSON array, which means that
> you must use double-quotes (") around words not single-quotes (').
When used in the shell or exec formats, the `CMD` instruction sets the command
to be executed when running the image.
@ -434,6 +442,10 @@ optional but default, you could use a `CMD` instruction:
CMD ["-l"]
ENTRYPOINT ["ls"]
> **Note**:
> The *exec* form is parsed as a JSON array, which means that
> you must use double-quotes (") around words not single-quotes (').
> **Note**:
> It is preferable to use the JSON array format for specifying
> `ENTRYPOINT` instructions.
@ -449,6 +461,10 @@ string, `VOLUME /var/log`. For more information/examples and mounting
instructions via the Docker client, refer to [*Share Directories via Volumes*](
/userguide/dockervolumes/#volume-def) documentation.
> **Note**:
> The list is parsed a JSON array, which means that
> you must use double-quotes (") around words not single-quotes (').
## USER
USER daemon