Variable interpolation when running 'rancher catalog install' from the CLI

I want to check that my assumption that variable interpolation is not available when running rancher catalog install from the CLI is correct.

When I issue the command:

gp_finder_docker_image_tag=PR999 rancher catalog install --name test "NHSuk_Staging/c2s-gp-finder"

I am still prompted for the gp_finder_docker_image_tag value which suggests to me that interpolation is not happening. The catalog repo I’m using is

If interpolation should work then any clues as to what I’m doing wrong would be appreciated.



Rancher: 1.5.1
Rancher CLI: 0.5.0
Docker: 17.03.0-ce, build 60ccb22