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vault GCP auth 구성 #207

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Merged
mulmuri merged 2 commits into from
Mar 3, 2025
Merged

vault GCP auth 구성 #207

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a78d302
feat: add role for vault gcp auth
ikjeong Mar 3, 2025
151db65
feat: config vault gcp auth
ikjeong Mar 3, 2025
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26 changes: 26 additions & 0 deletions modules/gcp/iam/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,23 @@ resource "google_service_account_iam_binding" "vault_workload_identity_binding"
depends_on = [google_service_account.vault_sa]
}

resource "google_project_iam_custom_role" "vault_service_account_role" {
role_id = "VaultServiceAccountRole"
project = var.project_id
title = "Vault Service Account Role"
description = "Role for Vault to authenticate using GCP service accounts"
permissions = [
"iam.serviceAccounts.get",
"iam.serviceAccountKeys.get"
]
}

resource "google_project_iam_member" "vault_service_account_role_binding" {
project = var.project_id
role = "projects/${var.project_id}/roles/VaultServiceAccountRole"
member = "serviceAccount:${google_service_account.vault_sa.email}"
}

# ƒor loki
resource "google_service_account" "loki_gcs_sa" {
project = var.project_id
Expand Down Expand Up @@ -179,3 +196,12 @@ resource "google_service_account_iam_binding" "workload_identity_binding" {
"serviceAccount:${var.project_id}.svc.id.goog[atlantis/atlantis]"
]
}

resource "google_service_account_iam_binding" "service_account_token_creator" {
service_account_id = google_service_account.atlantis.name
role = "roles/iam.serviceAccountTokenCreator"
members = [
"serviceAccount:${google_service_account.atlantis.email}",
"user:jipark7937@gmail.com"
]
}
24 changes: 13 additions & 11 deletions projects/k8s/vault/configs/provider.tf
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Expand Up @@ -2,7 +2,7 @@ terraform {
required_providers {
google = {
source = "hashicorp/google"
version = "4.84.0"
version = "6.23.0"
}
vault = {
source = "hashicorp/vault"
Expand Down Expand Up @@ -44,30 +44,32 @@ data "kubernetes_secret" "vault_sa_token" {

locals {
token_reviewer_jwt = data.kubernetes_secret.vault_sa_token.data["token"]
role_id = data.google_secret_manager_secret_version.vault_role_id.secret_data
secret_id = data.google_secret_manager_secret_version.vault_secret_id.secret_data
}

provider "google" {
project = var.project_id
region = var.region
}

data "google_secret_manager_secret_version" "vault_role_id" {
secret = "vault_role_id"
}
ephemeral "google_service_account_jwt" "vault_jwt" {
target_service_account = "atlantis@${var.project_id}.iam.gserviceaccount.com"

payload = jsonencode({
sub: "atlantis@${var.project_id}.iam.gserviceaccount.com",
aud: "vault/terraform",
})

data "google_secret_manager_secret_version" "vault_secret_id" {
secret = "vault_secret_id"
expires_in = 1800
}

provider "vault" {
address = "https://vault.goboolean.io"

auth_login {
path = "auth/approle/login"
path = "auth/gcp/login"
parameters = {
role_id = local.role_id
secret_id = local.secret_id
jwt = ephemeral.google_service_account_jwt.vault_jwt.jwt
role = "terraform"
}
}
}
3 changes: 3 additions & 0 deletions projects/k8s/vault/configs/terraform.tfvars
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@@ -0,0 +1,3 @@
# Google Cloud Platform
project_id = "goboolean-452007"
region = "asia-northeast3"