feat(modular): add modular support for cdr/ciem

modules/integrations/pub-sub/main.tf

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+#-----------------------------------------------------------------------------------------------------------------------------------------
+# For Organizational installs, see organizational.tf.
+# This module  takes care of provisioning the necessary resources to make Sysdig's backend able to ingest data from a
+# single GCP project.
+#
+# Note: The alternative definitions for the organizational variant of this module are contained
+# in organizational.tf. The only differences w.r.t. the standalone template is in using an
+# organizational sink instead of a project-specific one, as well as enabling AuditLogs for
+# all the projects that fall within the organization.
+#-----------------------------------------------------------------------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------------------
+# Fetch the data sources
+#-----------------------------------------------------------------------------------------
+data "sysdig_secure_trusted_cloud_identity" "trusted_identity" {
+  cloud_provider = "gcp"
+}
+
+data "google_project" "project" {
+  project_id = var.project_id
+}
+
+data "sysdig_secure_tenant_external_id" "external_id" {}
+
+data "sysdig_secure_cloud_ingestion_assets" "assets" {}
+
+#-----------------------------------------------------------------------------------------
+# These locals indicate the suffix to create unique name for resources
+#-----------------------------------------------------------------------------------------
+locals {
+  suffix    = var.suffix == null ? random_id.suffix[0].hex : var.suffix
+  role_name = "SysdigIngestionAuthRole"
+}
+
+
+#-----------------------------------------------------------------------------------------------------------------------
+# A random resource is used to generate unique Pub Sub name suffix for resources.
+# This prevents conflicts when recreating a Pub Sub resources with the same name.
+#-----------------------------------------------------------------------------------------------------------------------
+resource "random_id" "suffix" {
+  count       = var.suffix == null ? 1 : 0
+  byte_length = 3
+}
+
+#-----------------------------------------------------------------------------------------
+# Audit Logs
+#-----------------------------------------------------------------------------------------
+locals {
+  # Data structure will be a map for each service, that can have multiple audit_log_config
+  audit_log_config = { for audit in var.audit_log_config :
+    audit["service"] => {
+      log_config = audit["log_config"]
+    }
+  }
+}
+
+resource "google_project_iam_audit_config" "audit_config" {
+  for_each = var.is_organizational ? {} : local.audit_log_config
+  project  = var.project_id
+  service  = each.key
+
+  dynamic "audit_log_config" {
+    for_each = each.value.log_config
+    iterator = log_config
+    content {
+      log_type         = log_config.value.log_type
+      exempted_members = log_config.value.exempted_members
+    }
+  }
+}
+
+#-----------------------------------------------------------------------------------------
+# Ingestion Topic
+#-----------------------------------------------------------------------------------------
+resource "google_pubsub_topic" "ingestion_topic" {
+  name                       = "ingestion_topic"
+  labels                     = var.labels
+  project                    = var.project_id
+  message_retention_duration = var.message_retention_duration
+}
+
+resource "google_pubsub_topic" "deadletter_topic" {
+  name                       = "dl-${google_pubsub_topic.ingestion_topic.name}"
+  project                    = var.project_id
+  message_retention_duration = var.message_retention_duration
+}
+
+#-----------------------------------------------------------------------------------------
+# Sink
+#-----------------------------------------------------------------------------------------
+resource "google_logging_project_sink" "ingestion_sink" {
+  count       = var.is_organizational ? 0 : 1
+  name        = "${google_pubsub_topic.ingestion_topic.name}_sink"
+  description = "Sysdig sink to direct the AuditLogs to the PubSub topic used for data gathering"
+
+  # NOTE: The target destination is a PubSub topic
+  destination = "pubsub.googleapis.com/projects/${var.project_id}/topics/${google_pubsub_topic.ingestion_topic.name}"
+  filter      = var.ingestion_sink_filter
+
+  # Dynamic block to exclude logs from ingestion
+  dynamic "exclusions" {
+    for_each = var.exclude_logs_filter
+    content {
+      name        = exclusions.value.name
+      description = exclusions.value.description
+      filter      = exclusions.value.filter
+      disabled    = exclusions.value.disabled
+    }
+  }
+
+  # NOTE: Used to create a dedicated writer identity and not using the default one
+  unique_writer_identity = true
+}
+
+resource "google_pubsub_topic_iam_member" "publisher_iam_member" {
+  project = google_pubsub_topic.ingestion_topic.project
+  topic   = google_pubsub_topic.ingestion_topic.name
+  role    = "roles/pubsub.publisher"
+  member  = var.is_organizational ? google_logging_organization_sink.ingestion_sink[0].writer_identity : google_logging_project_sink.ingestion_sink[0].writer_identity
+}
+
+#-----------------------------------------------------------------------------------------
+# Push Subscription
+#-----------------------------------------------------------------------------------------
+resource "google_service_account" "push_auth" {
+  account_id   = "sysdig-ingestion-${local.suffix}"
+  display_name = "Sysdig Ingestion Push Auth Service Account"
+  project      = var.project_id
+}
+
+resource "google_service_account_iam_binding" "push_auth_binding" {
+  service_account_id = google_service_account.push_auth.name
+  role               = "roles/iam.workloadIdentityUser"
+
+  members = [
+    "serviceAccount:${google_service_account.push_auth.email}",
+  ]
+}
+
+resource "google_pubsub_subscription" "ingestion_topic_push_subscription" {
+  name                       = "${google_pubsub_topic.ingestion_topic.name}_push_subscription"
+  topic                      = google_pubsub_topic.ingestion_topic.name
+  labels                     = var.labels
+  ack_deadline_seconds       = var.ack_deadline_seconds
+  message_retention_duration = var.message_retention_duration
+  project                    = var.project_id
+
+  push_config {
+    push_endpoint = data.sysdig_secure_cloud_ingestion_assets.assets.gcp_metadata.ingestionURL
+    attributes = {
+      x-goog-version = "v1"
+    }
+    oidc_token {
+      service_account_email = google_service_account.push_auth.email
+      audience              = "sysdig_secure"
+    }
+  }
+
+  retry_policy {
+    minimum_backoff = var.minimum_backoff
+    maximum_backoff = var.maximum_backoff
+  }
+
+  dead_letter_policy {
+    dead_letter_topic     = google_pubsub_topic.deadletter_topic.id
+    max_delivery_attempts = var.max_delivery_attempts
+  }
+}
+
+#-----------------------------------------------------------------------------------------
+# Configure Workload Identity Federation for auth
+# See https://cloud.google.com/iam/docs/access-resources-aws
+# -----------------------------------------------------------------------------------------
+
+resource "google_iam_workload_identity_pool" "ingestion_auth_pool" {
+  project                   = var.project_id
+  workload_identity_pool_id = "sysdig-ingestion-${local.suffix}"
+}
+
+resource "google_iam_workload_identity_pool_provider" "ingestion_auth_pool_provider" {
+  project                            = var.project_id
+  workload_identity_pool_id          = google_iam_workload_identity_pool.ingestion_auth_pool.workload_identity_pool_id
+  workload_identity_pool_provider_id = "sysdig-ingestion-${local.suffix}"
+  display_name                       = "Sysdigcloud ingestion auth"
+  description                        = "AWS identity pool provider for Sysdig Secure Data Ingestion resources"
+  disabled                           = false
+
+  attribute_condition = "attribute.aws_role==\"arn:aws:sts::${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id}:assumed-role/${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_role_name}/${data.sysdig_secure_tenant_external_id.external_id.external_id}\""
+
+  attribute_mapping = {
+    "google.subject"     = "assertion.arn",
+    "attribute.aws_role" = "assertion.arn"
+  }
+
+  aws {
+    account_id = data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id
+  }
+}
+
+# creating custom role with project-level permissions to access data ingestion resources
+resource "google_project_iam_custom_role" "custom_ingestion_auth_role" {
+  count = var.is_organizational ? 0 : 1
+
+  project     = var.project_id
+  role_id     = "${local.role_name}${local.suffix}"
+  title       = "Sysdigcloud Ingestion Auth Role"
+  description = "A Role providing the required permissions for Sysdig Backend to read cloud resources created for data ingestion"
+  permissions = [
+    "pubsub.topics.get",
+    "pubsub.topics.list",
+    "pubsub.subscriptions.get",
+    "pubsub.subscriptions.list",
+    "logging.sinks.get",
+    "logging.sinks.list",
+  ]
+}
+
+# adding custom role with project-level permissions to the service account for auth
+resource "google_project_iam_member" "custom" {
+  count = var.is_organizational ? 0 : 1
+
+  project = var.project_id
+  role    = google_project_iam_custom_role.custom_ingestion_auth_role[0].id
+  member  = "serviceAccount:${google_service_account.push_auth.email}"
+}
+
+# attaching WIF as a member to the service account for auth
+resource "google_service_account_iam_member" "custom_auth" {
+  service_account_id = google_service_account.push_auth.name
+  role               = "roles/iam.workloadIdentityUser"
+  member             = "principalSet://iam.googleapis.com/projects/${data.google_project.project.number}/locations/global/workloadIdentityPools/${google_iam_workload_identity_pool.ingestion_auth_pool.workload_identity_pool_id}/attribute.aws_role/arn:aws:sts::${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_account_id}:assumed-role/${data.sysdig_secure_trusted_cloud_identity.trusted_identity.aws_role_name}/${data.sysdig_secure_tenant_external_id.external_id.external_id}"
+}
+
+# adding ciem role with permissions to the service account
+resource "google_project_iam_member" "identity_mgmt" {
+  for_each = var.is_organizational ? [] : toset(["roles/recommender.viewer", "roles/iam.serviceAccountViewer", "roles/iam.roleViewer", "roles/container.clusterViewer", "roles/compute.viewer"])
+
+  project = var.project_id
+  role    = each.key
+  member  = "serviceAccount:${google_service_account.push_auth.email}"
+}
+
+#-----------------------------------------------------------------------------------------------------------------------------------------
+# Call Sysdig Backend to add the pub-sub integration to the Sysdig Cloud Account
+#
+# Note (optional): To ensure this gets called after all cloud resources are created, add
+# explicit dependency using depends_on
+#-----------------------------------------------------------------------------------------------------------------------------------------
+
+resource "sysdig_secure_cloud_auth_account_component" "gcp_pubsub_datasource" {
+  account_id = var.sysdig_secure_account_id
+  type       = "COMPONENT_WEBHOOK_DATASOURCE"
+  instance   = "secure-runtime"
+  version    = "v0.1.0"
+  webhook_datasource_metadata = jsonencode({
+    gcp = {
+      webhook_datasource = {
+        pubsub_topic_name      = google_pubsub_topic.ingestion_topic.name
+        sink_name              = var.is_organizational ? google_logging_organization_sink.ingestion_sink[0].name : google_logging_project_sink.ingestion_sink[0].name
+        push_subscription_name = google_pubsub_subscription.ingestion_topic_push_subscription.name
+        push_endpoint          = google_pubsub_subscription.ingestion_topic_push_subscription.push_config[0].push_endpoint
+        routing_key            = data.sysdig_secure_cloud_ingestion_assets.assets.gcp_routing_key
+      }
+      service_principal = {
+        workload_identity_federation = {
+          pool_id          = google_iam_workload_identity_pool.ingestion_auth_pool.workload_identity_pool_id
+          pool_provider_id = google_iam_workload_identity_pool_provider.ingestion_auth_pool_provider.workload_identity_pool_provider_id
+          project_number   = data.google_project.project.number
+        }
+        email = google_service_account.push_auth.email
+      }
+    }
+  })
+}

modules/integrations/pub-sub/organizational.tf

@@ -0,0 +1,95 @@
+#-----------------------------------------------------------------------------------------
+# Fetch the data sources
+#-----------------------------------------------------------------------------------------
+
+data "google_organization" "org" {
+  count  = var.is_organizational ? 1 : 0
+  domain = var.organization_domain
+}
+
+#-----------------------------------------------------------------------------------------
+# Audit Logs
+#-----------------------------------------------------------------------------------------
+
+resource "google_organization_iam_audit_config" "audit_config" {
+  for_each = var.is_organizational ? local.audit_log_config : {}
+
+  org_id  = data.google_organization.org[0].org_id
+  service = each.key
+
+  dynamic "audit_log_config" {
+    for_each = each.value.log_config
+    iterator = log_config
+    content {
+      log_type         = log_config.value.log_type
+      exempted_members = log_config.value.exempted_members
+    }
+  }
+}
+
+#-----------------------------------------------------------------------------------------
+# Sink
+#-----------------------------------------------------------------------------------------
+
+resource "google_logging_organization_sink" "ingestion_sink" {
+  count = var.is_organizational ? 1 : 0
+
+  name        = "${google_pubsub_topic.ingestion_topic.name}_sink"
+  description = "Sysdig sink to direct the AuditLogs to the PubSub topic used for data gathering"
+  org_id      = data.google_organization.org[0].org_id
+
+  # NOTE: The target destination is a PubSub topic
+  destination = "pubsub.googleapis.com/projects/${var.project_id}/topics/${google_pubsub_topic.ingestion_topic.name}"
+  filter      = var.ingestion_sink_filter
+
+  # Dynamic block to exclude logs from ingestion
+  dynamic "exclusions" {
+    for_each = var.exclude_logs_filter
+    content {
+      name        = exclusions.value.name
+      description = exclusions.value.description
+      filter      = exclusions.value.filter
+      disabled    = exclusions.value.disabled
+    }
+  }
+
+  # NOTE: The include_children attribute is set to true in order to ingest data
+  # even from potential sub-organizations
+  include_children = true
+}
+
+# creating custom role with organization-level permissions to access data ingestion resources
+resource "google_organization_iam_custom_role" "custom_ingestion_auth_role" {
+  count = var.is_organizational ? 1 : 0
+
+  org_id      = data.google_organization.org[0].org_id
+  role_id     = "${local.role_name}Org${local.suffix}"
+  title       = "Sysdigcloud Ingestion Org Auth Role"
+  description = "A Role providing the required permissions for Sysdig Backend to read cloud resources created for data ingestion"
+  permissions = [
+    "pubsub.topics.get",
+    "pubsub.topics.list",
+    "pubsub.subscriptions.get",
+    "pubsub.subscriptions.list",
+    "logging.sinks.get",
+    "logging.sinks.list",
+  ]
+}
+
+# adding custom role with organization-level permissions to the service account for auth
+resource "google_organization_iam_member" "custom" {
+  count = var.is_organizational ? 1 : 0
+
+  org_id = data.google_organization.org[0].org_id
+  role   = google_organization_iam_custom_role.custom_ingestion_auth_role[0].id
+  member = "serviceAccount:${google_service_account.push_auth.email}"
+}
+
+# adding ciem role with permissions to the service account for org
+resource "google_organization_iam_member" "identity_mgmt" {
+  for_each = var.is_organizational ? toset(["roles/recommender.viewer", "roles/iam.serviceAccountViewer", "roles/iam.organizationRoleViewer", "roles/container.clusterViewer", "roles/compute.viewer"]) : []
+
+  org_id = data.google_organization.org[0].org_id
+  role   = each.key
+  member = "serviceAccount:${google_service_account.push_auth.email}"
+}

modules/integrations/pub-sub/outputs.tf

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+output "pubsub_datasource_component_id" {
+  value       = "${sysdig_secure_cloud_auth_account_component.gcp_pubsub_datasource.type}/${sysdig_secure_cloud_auth_account_component.gcp_pubsub_datasource.instance}"
+  description = "Component identifier of Webhook Datasource integration created in Sysdig Backend for Log Ingestion"
+  depends_on  = [sysdig_secure_cloud_auth_account_component.gcp_pubsub_datasource]
+}