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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
> **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.
> 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
at build time is the value in the environment where Compose is running.