fix: Set BASE_TAG build arg again before shell use

usatlas / analysisbase-dask-uc

UC AF specific image building

https://hub.docker.com/r/sslhep/analysis-dask-uc/tags

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fix: Set BASE_TAG build arg again before shell use #7

Closed matthewfeickert closed 3 months ago

matthewfeickert commented 3 months ago

Resolves https://github.com/usatlas/analysisbase-dask/issues/32
Fixes https://github.com/usatlas/analysisbase-dask-uc/commit/fcbecfe2d61d2d1abcccacf79a3225ca004abf17

Using a build arg as part of FROM will clear its value, so just reset the build arg again before it is needed to be used as a shell environment variable in a RUN command.