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fix: Make source a keyword argument for Mounts #3143

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Jack-Dane
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  • There is no source for tmpfs mounts.
  • Raise an exception if a source hasn't been parsed for types other than tmpfs.

https://docs.docker.com/storage/tmpfs/

There is the possibility to make the keyword argument an empty string as it should raise an error anyway when needed for certain types of mounts, but I think this error is easier to understand + is similar to the implementation already.

fixes #3139

* There is no source for tmpfs mounts.
* Raise an exception if a source hasn't been parsed for types other than tmpfs.

Signed-off-by: Jack Dane <jackd98.jd@gmail.com>
milas

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milas commented Aug 15, 2023

Okay, I looked at this more after the unit test failures. Empty source is already supported, but you need to explicitly pass None. Similarly, it's actually valid for other cases as well, such as anonymous volumes.

As a result, I'm closing this PR, but let me know if you have questions or there's a case that still isn't supported. I gave an example on #3139 which might be useful.

@milas milas closed this Aug 15, 2023
@milas milas self-assigned this Aug 15, 2023
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Cannot create tmpfs with docker.types.Mount
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