Allow properties from the .properties file to be set via environment variables.

[digitalfiz]

Having to generate this properties file for each environment is not at all 12 factor app. It would be nice if setting STREAM_NAME and others via environment variables overrode properties file values. Kind of like auth works for the sdk.

[jqr]

Yeah I ended up making a script to generate the properties file dynamically using a template so we could have 4 apps all use the same one. I don't have access to that code any more but IIRC you could have it read from STDIN instead of writing to the filesystem.

[lancedikson]

Agree. I'm even overwhelmed with the fact that it doesn't take those properties as env variables.

[Cory-Bradshaw]

Thank you for reporting this feature request. If you or other customers can leave more details on how this impacts your workflows and +1 this issue to help us plan and prioritize this work.

[akshaypinto]

+1

[skcc321]

+1

[cbatson]

You can use ERB to achieve this. Example:

properties_body = ERB.new(IO.read(Rails.root.join('config/consumer.properties.erb'))).result
properties_file = Rails.root.join('tmp/consumer.properties')
IO.write(properties_file, properties_body)

Then in the consumer.properties.erb file

streamName = <%= ENV['KCL_STREAM_NAME'] %>