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haresh-sureshharesh-suresh
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adding config posture module for modular onboarding
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8 files changed

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‎modules/config-posture/README.md‎

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‎modules/config-posture/main.tf‎

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#------------------------------------------------------------------#
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# Fetch and compute required data for Workload Identity Federation #
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#------------------------------------------------------------------#
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data "sysdig_secure_trusted_cloud_identity" "trusted_identity" {
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cloud_provider = "gcp"
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}
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data "google_project" "project" {
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project_id = var.project_id
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}
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// suffix to uniquely identify WIF pool and provider during multiple installs. If suffix value is not provided, this will generate a random value.
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resource "random_id" "suffix" {
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count = var.suffix == null ? 1 : 0
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byte_length = 3
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}
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locals {
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suffix = var.suffix == null ? random_id.suffix[0].hex : var.suffix
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}
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resource "google_service_account" "posture_auth" {
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account_id = "sysdig-posture-${local.suffix}"
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display_name = "Sysdig Config Posture Auth Service Account"
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project = var.project_id
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}
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resource "google_service_account_iam_binding" "posture_auth_binding" {
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service_account_id = google_service_account.posture_auth.name
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role = "roles/iam.workloadIdentityUser"
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members = [
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"serviceAccount:${google_service_account.posture_auth.email}",
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]
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}
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#------------------------------------------------------------#
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# Configure Workload Identity Federation for auth #
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# See https://cloud.google.com/iam/docs/access-resources-aws #
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#------------------------------------------------------------#
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resource "google_iam_workload_identity_pool" "posture_auth_pool" {
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project = var.project_id
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workload_identity_pool_id = "sysdig-posture-${local.suffix}"
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}
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resource "google_iam_workload_identity_pool_provider" "posture_auth_pool_provider" {
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project = var.project_id
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workload_identity_pool_id = google_iam_workload_identity_pool.posture_auth_pool.workload_identity_pool_id
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workload_identity_pool_provider_id = "sysdig-posture-${local.suffix}"
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display_name = "Sysdigcloud config posture auth"
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description = "AWS identity pool provider for Sysdig Secure Data Config Posture resources"
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disabled = false
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attribute_condition = "attribute.aws_role==\"arn:aws:sts::${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id}:assumed-role/${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_role_name}/${var.external_id}\""
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attribute_mapping = {
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"google.subject" = "assertion.arn",
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"attribute.aws_role" = "assertion.arn"
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}
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aws {
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account_id = data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id
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}
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}
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#---------------------------------------------------------------------------------------------
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# role permissions for CSPM (GCP Predefined Roles for Sysdig Cloud Secure Posture Management)
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#---------------------------------------------------------------------------------------------
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resource "google_project_iam_member" "cspm" {
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for_each = var.is_organizational ? [] : toset(["roles/cloudasset.viewer", "roles/iam.workloadIdentityUser", "roles/logging.viewer", "roles/cloudfunctions.viewer", "roles/cloudbuild.builds.viewer", "roles/orgpolicy.policyViewer"])
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project = var.project_id
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role = each.key
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member = "serviceAccount:${google_service_account.posture_auth.email}"
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}
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# attaching WIF as a member to the service account for auth
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resource "google_service_account_iam_member" "custom_auth" {
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service_account_id = google_service_account.posture_auth.name
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role = "roles/iam.workloadIdentityUser"
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member = "principalSet://iam.googleapis.com/projects/${data.google_project.project.number}/locations/global/workloadIdentityPools/${google_iam_workload_identity_pool.posture_auth_pool.workload_identity_pool_id}/attribute.aws_role/arn:aws:sts::${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id}:assumed-role/${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_role_name}/${var.external_id}"
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}
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#--------------------------------------------------------------------------------------------------------------
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# Call Sysdig Backend to add the service-principal integration for Config Posture to the Sysdig Cloud Account
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#
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# Note (optional): To ensure this gets called after all cloud resources are created, add
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# explicit dependency using depends_on
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#--------------------------------------------------------------------------------------------------------------
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resource "sysdig_secure_cloud_auth_account_component" "google_service_principal" {
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account_id = var.sysdig_secure_account_id
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type = "COMPONENT_SERVICE_PRINCIPAL"
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instance = "secure-posture"
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verion = "v0.1.0"
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service_principal_metadata = jsonencode({
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gcp = {
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service_principal = {
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workload_identity_federation = {
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pool_id = google_iam_workload_identity_pool.posture_auth_pool.workload_identity_pool_id
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pool_provider_id = google_iam_workload_identity_pool_provider.posture_auth_pool_provider.workload_identity_pool_provider_id
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project_number = data.google_project.project.number
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}
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email = google_service_account.posture_auth.email
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}
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}
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})
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}

‎modules/config-posture/organizational.tf‎

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#--------------#
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# Organization #
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#--------------#
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data "google_organization" "org" {
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count = var.is_organizational ? 1 : 0
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domain = var.organization_domain
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}
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###################################################
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# Setup Service Account permissions
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###################################################
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#---------------------------------------------------------------------------------------------
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# role permissions for CSPM (GCP Predefined Roles for Sysdig Cloud Secure Posture Management)
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#---------------------------------------------------------------------------------------------
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resource "google_organization_iam_member" "cspm" {
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for_each = var.is_organizational ? toset(["roles/cloudasset.viewer", "roles/iam.workloadIdentityUser", "roles/logging.viewer", "roles/cloudfunctions.viewer", "roles/cloudbuild.builds.viewer", "roles/orgpolicy.policyViewer"]) : []
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org_id = data.google_organization.org[0].org_id
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role = each.key
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member = "serviceAccount:${google_service_account.posture_auth.email}"
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}

‎modules/config-posture/outputs.tf‎

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output "service_principal_component_id" {
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value = "${sysdig_secure_cloud_auth_account_component.google_service_principal.type}/${sysdig_secure_cloud_auth_account_component.google_service_principal.instance}"
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description = "Component identifier of Service Principal created in Sysdig Backend for Config Posture"
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depends_on = [sysdig_secure_cloud_auth_account_component.google_service_principal]
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}

‎modules/config-posture/variables.tf‎

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variable "project_id" {
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type = string
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description = "(Required) Target Project identifier provided by the customer"
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}
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variable "is_organizational" {
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description = "(Optional) Set this field to 'true' to deploy secure-for-cloud to a GCP Organization."
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type = bool
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default = false
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}
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variable "organization_domain" {
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type = string
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description = "(Optional) Organization domain. e.g. sysdig.com"
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default = ""
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}
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variable "management_group_ids" {
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type = set(string)
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description = "(Optional) Management group id to onboard. e.g. [organizations/123456789012], [folders/123456789012]"
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default = []
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}
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variable "external_id" {
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type = string
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description = "(Required) Random string generated unique to a customer"
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}
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variable "suffix" {
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type = string
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description = "Suffix to uniquely identify resources during multiple installs. If not provided, random value is autogenerated"
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default = null
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}
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variable "sysdig_secure_account_id" {
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type = string
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description = "ID of the Sysdig Cloud Account to enable Config Posture for (in case of organization, ID of the Sysdig management account)"
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}

‎modules/config-posture/versions.tf‎

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terraform {
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required_version = ">= 1.0.0"
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required_providers {
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google = {
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source = "hashicorp/google"
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version = ">= 4.21.0"
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}
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sysdig = {
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source = "sysdiglabs/sysdig"
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version = ">= 1.29.2"
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}
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random = {
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source = "hashicorp/random"
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version = ">= 3.1"
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}
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}
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}

‎modules/onboarding/variables.tf‎

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description = "(Required) Target Project identifier provided by the customer"
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}
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variable "labels" {
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type = map(string)
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description = "(Optional) Labels to be associated with Sysdig-originated resources"
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default = {
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originator = "sysdig"
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}
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}
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variable "is_organizational" {
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description = "(Optional) Set this field to 'true' to deploy secure-for-cloud to a GCP Organization."
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type = bool

‎modules/onboarding/versions.tf‎

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}
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random = {
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source = "hashicorp/random"
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version = ">= 3.1, < 4.0"
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version = ">= 3.1"
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}
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}
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}

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