CODEWITHSUNDEEP
terraforminfrastructure-as-codeterragrunt
finnk
finnk

Reputation: 133

Terragrunt source from specific git branch as a vairable

I know that it is possible in terragrunt to add a git source reference to a specific branch as mentioned in another post.

But is it possible to set the branch based on something like a global variable?

So instead of

terraform {
   source = "git::https://git.repo.modules.git//src/modules/vpc?ref=develop"
}

something like

terraform {
   source = "git::https://git.repo.modules.git//src/modules/vpc?ref=${VAR_BRANCH}"
}

We develop on different branches and I don't want to change every source reference when merging things to another branch.

I also read about source mapping, but it seems to me that we also have to map every single source, or did I miss something?

Thank you very much & best regards

Upvotes: 0

Views: 1911

Answers (1)

Bernard Halas
Bernard Halas

Reputation: 1190

Your code example should work, i.e. if your variable is local the code snippet should look like this:

terraform {
   source = "git::https://git.repo.modules.git//src/modules/vpc?ref=${locals.branch}"
}

I also read about source mapping, but it seems to me that we also have to map every single source, or did I miss something?

Yes, that is correct. Unless you want to use the master branch.

Upvotes: 1

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