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Make it clear that JSON array format should be used if CMD is used as default arguments 

Signed-off-by: Xuecong Liao <satorulogic@gmail.com>
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satoru 2014-08-07 14:39:14 +08:00
parent e20a95f24c
commit 6e0f072e36
1 changed files with 5 additions and 0 deletions
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docs/sources/reference/builder.md
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@ -196,6 +196,11 @@ container.** These defaults can include an executable, or they can omit
the executable, in which case you must specify an `ENTRYPOINT` the executable, in which case you must specify an `ENTRYPOINT`
instruction as well. instruction as well.
> **Note**:
> If `CMD` is used to provide default arguments for the `ENTRYPOINT`
> instruction, both the `CMD` and `ENTRYPOINT` instructions should be specified
> with the JSON array format.
When used in the shell or exec formats, the `CMD` instruction sets the command When used in the shell or exec formats, the `CMD` instruction sets the command
to be executed when running the image. to be executed when running the image.