Hey guys, is there a way to dynamically inject

SERVICE_HEADERS

values before running a flow? We have our metadata service behind an oauth proxy, and would like to make it easy for our users to submit flows without needing to do

METAFLOW_SERVICE_HEADERS=... python flow.py run

you can store

METAFLOW_SERVICE_HEADERS

in

~/.metaflowconfig/config.json

Yea but we generate the jwt via gcloud auth print-identity-token so should we write the value to the config at the start of the flow?

We use justfile for this. https://github.com/casey/just

David, that looks really neat. Do you end up with a stepwise process of 1. generate jwt 2. write header to config.json 3. invoke the flow?

python flow.py run

?

We use environmental variables that generate things at run time such as a kubernetes image name based on the branch you are on and then run the flow. Usually it's like a mini-bash script