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Use custom service account for search dataform #3800

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Use custom service account for search dataform #3800

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6e249c3
Move setup of custom dataform service account
emmalowe Mar 4, 2026
1756975
Use custom service account for search dataform
emmalowe Mar 4, 2026
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49 changes: 34 additions & 15 deletions terraform/deployments/search-api-v2/dataform.tf
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Original file line number Diff line number Diff line change
@@ -1,3 +1,10 @@
# Create a service account for Dataform
resource "google_service_account" "dataform_service_account" {
account_id = "dataform-sa"
display_name = "Dataform Service Account"
project = var.gcp_project_id
}

variable "search_dataform_github_repository_url" {
description = "URL of the GitHub repository to link with Dataform"
type = string
Expand All @@ -14,22 +21,16 @@ resource "google_secret_manager_secret_iam_member" "member" {
project = var.gcp_project_id
secret_id = "github_search_v2_api_dataform_ssh_key"
role = "roles/secretmanager.secretAccessor"
member = "serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
}

# Create a service account for Dataform
resource "google_service_account" "dataform_service_account" {
account_id = "dataform-sa"
display_name = "Dataform Service Account"
project = var.gcp_project_id
member = google_service_account.dataform_service_account.member
}

# Create Dataform repository with GitHub integration
resource "google_dataform_repository" "search_api_v2" {
provider = google-beta
name = "search_api_v2"
project = var.gcp_project_id
region = var.gcp_region
provider = google-beta
name = "search_api_v2"
project = var.gcp_project_id
region = var.gcp_region
service_account = google_service_account.dataform_service_account.email

git_remote_settings {
url = var.search_dataform_github_repository_url
Expand Down Expand Up @@ -106,22 +107,40 @@ resource "google_dataform_repository_workflow_config" "search-monthly" {
}
}

# Permissions for Default Dataform Service Agent to impersonate our custom Dataform Service Account
# This allows Dataform to set up and run new workflows
resource "google_service_account_iam_binding" "dataform_sa_impersonation" {
service_account_id = google_service_account.dataform_service_account.name
role = "roles/iam.serviceAccountUser"
members = [
"serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
]
}

resource "google_service_account_iam_binding" "dataform_sa_token_creator" {
service_account_id = google_service_account.dataform_service_account.name
role = "roles/iam.serviceAccountTokenCreator"
members = [
"serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
]
}

# BigQuery cross-project permissions
# Service account permissions to access BigQuery
resource "google_project_iam_member" "bigquery_data_editor" {
project = "search-api-v2-${var.gcp_env}"
role = "roles/bigquery.dataEditor"
member = "serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
member = google_service_account.dataform_service_account.member
}

resource "google_project_iam_member" "bigquery_job_user" {
project = "search-api-v2-${var.gcp_env}"
role = "roles/bigquery.jobUser"
member = "serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
member = google_service_account.dataform_service_account.member
}

resource "google_project_iam_member" "bigquery_data_viewer" {
project = "search-api-v2-${var.gcp_env}"
role = "roles/bigquery.dataViewer"
member = "serviceAccount:service-${var.gcp_project_number}@gcp-sa-dataform.iam.gserviceaccount.com"
member = google_service_account.dataform_service_account.member
}
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