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How do you reference a dynamic terraform output in application code?

原文 2021-03-09 18:09:30 1 1 amazon-web-services/ amazon-dynamodb/ terraform/ terraform-provider-aws

I'm creating a dynamodb table using terraform and the name attribute of the table looks something like this...

name = "${var.service}-${var.environment}-Item-table"

Depending on the environment the name could be items-service-dev-Item-table or items-service-prod-Item-table . In my application code (JS) I obviously need to know the name of the table in order to interact with it but the dynamic nature makes it trickier.

I've considered going down the route of environment variables that are referenced by both the terraform and application code, but it seems messy. What's the best practice approach for handling something like this?

1 answers

Is terraform also deploying your application code? Usually you would have Terraform inject that value as an environment variable in the application it deploys.

If that's not possible, store the value in AWS Parameter Store .

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Related Question In Terraform, how do you output a list from an array of objects? How do Interpolate a terraform resource reference with a string? Do you need an “output” to express a dependency on a resource in a terraform module? How do you ignore a nested field in Terraform? Terraform 13, how to reference the output of a single instance of a module that uses count How to reference Terraform module output value as a input value to another module How do you choose an unused VPC CIDR Block with Terraform? How do you add a managed policy to a group in terraform? How do you source a JS file as a module in terraform? Terraform — how can I properly do a string interpolation in this code?

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How do you reference a dynamic terraform output in application code?

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solution1 1 ACCPTED 2021-03-09 18:27:25

solution1
1 ACCPTED 2021-03-09 18:27:25