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Improve variable interpolation, required flag and default value. #2441
Description
Activity
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👍 for defaults.
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I'm working on a project where people have heterogeneous env, I'm working on OSX and some are using Ubuntu, when using docker-machine with virtualbox provider, I have to put the full path to make Volume works:
myservice: volumes: - ${HOST_VOLUME_PATH}/src:/src
The problem is now people who don't use virtualbox have to define the value, it should be great if we could have a default value:
myservice: volumes: - ${HOST_VOLUME_PATH:.}/src:/src
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Reacted by Tobias Bradtke, James Wilson, Konstantin Baierer, Spence, Igor Jerosimić, Radoslav Kirilov, Matt Janssen, manelio and Semyon Danilov👍
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12 remaining items
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👍 to have this implemented the same way as in the Dockerfile implementation
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Anyone got any news about this, it's been a whole 27 days since the last 👍 ?
Much much needed!is there a PR already open with this change? Perhaps we need a volunteer to implement it.
Reacted by Marcello DeSalesDefinitely need this...
There is no reason to not implement this...
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Reacted by Eugen, Steven Casagrande, Marcello DeSales, Dmitrii Romanov and Onkar Ganjewar
As first proposed in #1377 I think it would be very useful to have a way to set a variable as required, and also set some default value.
Or