Automating the IAM role connection to MongoDB atlas

atlas.py

import os
from pulumi import get_stack, get_project # so that each resource has a project & staging/dev... in AWS console
import pulumi_mongodbatlas as mongodbatlas

ACCOUNT_ID = os.environ["ACCOUNT_ID"]
ATLAS_PROJECT_ID = os.environ["ATLAS_PROJECT_ID"]

my_func_role_arn = f"arn:aws:iam::{ACCOUNT_ID}:role/{get_project()}-{get_stack()}-my-func-iam-role"

lambda_cloud_provider_access = mongodbatlas.CloudProviderAccess(
    f"{get_project()}-{get_stack()}-my-func-database-authorization",
    iam_assumed_role_arn=my_func_role_arn,
    project_id=ATLAS_PROJECT_ID,
    provider_name="AWS"
    )

iam_for_lambda = iam.Role(
  f"{get_project()}-{get_stack()}-my-func-iam-role",
  name=f"{get_project()}-{get_stack()}-my-func-iam-role",
  assume_role_policy={
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": "sts:AssumeRole",
      "Principal": {
        "Service": "lambda.amazonaws.com"
      },
      "Effect": "Allow",
      "Sid": ""
    },
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::SOMETHING:root"
      },
      "Action": "sts:AssumeRole",
      "Condition": {
        "StringEquals": {
          "sts:ExternalId": lambda_cloud_provider_access.atlas_assumed_role_external_id
        }
      }
    }
  ]
})

lambda_role_authorization = mongodbatlas.CloudProviderAccessAuthorization(
                                    f"{get_project()}-{get_stack()}-my-func-role-access-authorization",
                                     project_id=ATLAS_PROJECT_ID,
                                     aws=mongodbatlas.CloudProviderAccessAuthorizationAwsArgs(iam_assumed_role_arn=my_func_role_arn),
                                     role_id= lambda_cloud_provider_access.role_id)

get_user = mongodbatlas.DatabaseUser(f"{get_project()}-{get_stack()}-database-user",
    username=iam_for_lambda.arn,
    project_id=ATLAS_PROJECT_ID,
    auth_database_name="$external",
    aws_iam_type="ROLE",
    roles=[mongodbatlas.DatabaseUserRoleArgs(
        role_name="readWriteAnyDatabase",
        database_name="admin",
    )],
    labels=[mongodbatlas.DatabaseUserLabelArgs(
        key="%s",
        value="%s",
    )],
    scopes=[mongodbatlas.DatabaseUserScopeArgs(
        name="Cluster0",
        type="CLUSTER",
    )])