how to access keys and values from list of map dictionary using Terraform for loop - terraform

Question

I tried this so much but could not figure out how to do this. I have a following YAML file below.
---
project_team_mapping:
- Terraform-Project-1: ## this is project name
- team_name: example-team-1
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
- team_name: example-team-2
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
- Terraform-Project-2: ## this is 2nd project name
- team_name: example-team-3
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
- team_name: example-team-4
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
I'm using some TF module to decode the YAML files and here is the module and the YAML decoded output JSON.
module "yaml_json_multidecoder" {
source = "levmel/yaml_json/multidecoder"
version = "0.2.1"
filepaths = ["./examples/*.yaml"]
}
output "project_team_mapping" {
value = module.yaml_json_multidecoder.files.project.project_team_mapping
}
below is the output when using above decoder module.
project_team_mapping = [
{
"Terraform-Project-1" = [
{
"roles" = [
"GROUP_READ_ONLY",
"GROUP_DATA_ACCESS_READ_WRITE",
]
"team_name" = "dx-example-team-3"
},
{
"roles" = [
"GROUP_READ_ONLY",
"GROUP_DATA_ACCESS_READ_WRITE",
]
"team_name" = "dx-example-team-4"
},
]
}
]
i would like to create resources using Terraform for/for_each function and dynamic functions for a particular resource block below, i'm strugging not able to understand the outcome.
Below is the resource block going to use
resource "mongodbatlas_project" "test" {
name = "project-name"
org_id = "<ORG_ID>"
project_owner_id = "<OWNER_ACCOUNT_ID>"
# want to use dynamic function here to create multiple teams
teams {
team_id = "5e0fa8c99ccf641c722fe645"
role_names = ["GROUP_OWNER"]
}
}
can someone help please?
resource "mongodbatlas_project" "test" {
name = "project-name"
org_id = "<ORG_ID>"
project_owner_id = "<OWNER_ACCOUNT_ID>"
# want to use dynamic function here to create multiple teams
teams {
team_id = "5e0fa8c99ccf641c722fe645"
role_names = ["GROUP_OWNER"]
}
}
I might use wrong YAML structuring, please suggest good structure to fit my needs. i can change the YAML.
above question i'm using team_name in YAML but the resource block takes team_id. i'm planning to use data function to get ID but if you happen to have a easy solution please suggest

Answer 1

Many unknowns you have left. But a best guess would be the example below.
Assuming you have decoded yaml into a local.decodedyaml. Also you possibly would need team_id instead of team_name, maybe you can load them via data source, or will have to retrieve and add to yaml manually.
resource "mongodbatlas_project" "test" {
for_each = local.decodedyaml.project_team_mapping
name = each.key
org_id = "<ORG_ID>"
project_owner_id = "<OWNER_ACCOUNT_ID>"
dynamic "teams" {
for_each = {
for team in each.value: team.team_name => team.roles
}
content {
team_id = each.key
role_names = each.value
}
}
}
This will work if you change the data design to "unwrap" the initial lists:
Instead of
project_team_mapping:
- Terraform-Project Name-1: ## this is project name
- team_name: example-team-1
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
...
- Terraform-Project Name-2: ## this is 2nd project name
- team_name: example-team-3
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
...
Use
project_team_mapping:
Terraform-Project Name-1: ## this is project name
- team_name: example-team-1
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
...
Terraform-Project Name-2: ## this is 2nd project name
- team_name: example-team-3
roles:
- GROUP_READ_ONLY
- GROUP_DATA_ACCESS_READ_WRITE
...
This eases the data structure and greatly eases the hcl parsing.
Lastly, I am not sure yaml keys with spaces are a risk-free endevour.