Question

Terraform and App Platform env variables

Hi, we are currently migrating the management of our infrastructure to Terraform.

While I’m translating the App config file to a Terraform one, I’ve found out some issues with Bindable Variables like APP_URL APP_DOMAIN that I referenced as "${APP_URL}"; writing it like that now throws an error when running terraform, but I didn’t found how to write it correctly.

Similary, Databases that I referenced as ${redis.REDIS_URL} or ${mongo.DATABASE_URL} not seem to work.

I found nothing in examples or documentation.

Can you help me? Thank you


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Bobby Iliev
Site Moderator
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February 25, 2023
Accepted Answer

Hi there,

In Terraform, you can escape variable interpolation by using double dollar signs: $$. For example, in your case, to use the string ${mongo.DATABASE_URL} literally, you can escape the interpolation sequence like this: $${mongo.DATABASE_URL}.

That way Terraform will not look for that variable locally but the string will be sent to the App Platform API.

Let me know how it goes!

Best,

Bobby

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