'terraform get variables from a file from other repo

our organization had decided to keep the terraform configuration files as DRY as possible, by separating the variables (tfvars) into a separate repository. this gives a flexibility for the developers too, to update any changes in the application level requirements, without much looking into the tf configuration files.

I am trying to figure out, if I maintain all the application profiles in a different repository, how would I be able to use them in my configurations.

my variables repo is expected to be

repo
    app_1
       dev.profile
       stage.profile
       prod.profile
    app_2
       dev.profile
       stage.profile
       prod.profile

how would I be able to read / get file <repo_url>/app_1/DEV.profile if I have to configure app_1 in DEV environment?

variablesterraformrepository


Solution 1:[1]

You just check out files using Git. Whether ad-hoc or in CI you probably do something like:

# Decide which app and environment we target
APP=app1
ENVIRONMENT=DEV

# Checkout app and config repos
git checkout <$APP_repo_url> "$APP"
git checkout <config_repo_url> config

# Deploy!
cd "$APP"
terraform init
terraform apply -var-file="../config/$APP/$ENVIRONMENT.profile"

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Solution Source
Solution 1 Kombajn zbo?owy

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