Dynamically modify the module input when dependecy is used

[sovyzeze]

Hi all,

I want to be able to dynamically modify this terragrunt input:

ECR_URL = dependency.ecr.outputs.ecr_url

In fact I would like to change just the ecr after dependency with different ecr names.

I tried to convert "dependency.ecr.outputs.ecr_url" in a string and manipulate it with format but it seems like the plan is returning just
"dependency.ecr.outputs.ecr_url" string and not its value.

K.R.

Ionel

---

Tracked in ticket #110092

[denis256]

Hi,
I was wondering if can be used replace HCL function, depending on how much from the string should be changed, like:

inputs = {
    ecr_url = replace(dependency.ecr.outputs.ecr_url, "substring-to-match", "replacement-substring")
}

https://developer.hashicorp.com/packer/docs/templates/hcl_templates/functions/string/replace

Minimal example in:
https://github.com/denis256/terragrunt-tests/tree/master/discussion-695

[sovyzeze]

Hi,

 

Unfortunately the replace function returns a string the actual "dependency.<<replacement_string>>.outputs.ecr_url" whereas I need the actual ecr_url output of the dependency, for each of the dependency.

 

We are passing some vars as inputs from a terragrunt file, iterating in a list of maps.

 

xyz = { for k, v in map_list : k => {
    ECR_URL = dependency.ecr_repo_name.outputs.ecr_url
    }
}

 

ecr_repo_name needs to be replaced with the specific ecr_repo of each item. It seems you cannot use interpolation in dependency, nor can you call on a dependency in a locals block, then interpolating in the inputs.

[denis256]

hm, will be helpful to show sample code and how it is intended to work, in my test using replace it changed output from 087285199408.dkr.ecr.us-east-1.amazonaws.com/circle-ci-test-image-base:go1.18-tf1.4-tg39.1-pck1.8-ci50.7 to 666.dkr.ecr.n-korea.amazonaws.com/circle-ci-test-image-base:go1.18-tf1.4-tg39.1-pck1.8-ci50.7