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Link to ARG and FROM interaction section

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Maria Bermudez 2019-03-18 12:00:47 -07:00 committed by GitHub
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compose/compose-file/compose-file-v2.md
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@ -198,8 +198,8 @@ or a list:
- gitcommithash=cdc3b19 - gitcommithash=cdc3b19
> **Note**: In your Dockerfile, if you specify `ARG` before the `FROM` instruction, > **Note**: In your Dockerfile, if you specify `ARG` before the `FROM` instruction,
> `ARG` is not available in the build instructions under `FROM`.
> If you need an argument to be available in both places, also specify it under the `FROM` instruction. > If you need an argument to be available in both places, also specify it under the `FROM` instruction.
> See [Understand how ARGS and FROM interact](/engine/reference/builder/#understand-how-arg-and-from-interact) for usage details.
You can omit the value when specifying a build argument, in which case its value You can omit the value when specifying a build argument, in which case its value
at build time is the value in the environment where Compose is running. at build time is the value in the environment where Compose is running.