Suggestions on how to load values from my .env file into Pulumi? My ultimate goal is transferring them to docker.image { build { args: ... } }. Preferably as a single ENV_ARGS: "multi-line string"

That doesn't sound like a Pulumi problem? Do it using typescript's/javascript's normal file and environment features.

As it turns out, yes. I'd been trying to decipher the action of pulumi.runtime.allConfig, but no longer need it. carry on.