Following command:

kamel run --property file:./configuration/templates/environment-specific-config/dev.env

fails with:

Error: supported property files must have a .properties extension: ./configuration/templates/environment-specific-config/dev.env

This one works:

kamel run --property file:./configuration/templates/environment-specific-config/dev.properties

Please consider removing the check on the file extension (properties).

The command should succeed(or fail) regardless of the file extension, the deciding factor should be the file content, not the file extension.

We are looking for equivalent functionality of the oc client, where following command:
oc process --param-file=test.env -f test.yaml | oc create -f -
 
work without any complaints.