Control: Compute Instances should restrict database write permission
Description
This control ensures that Compute Instance does not allow database write permissions.
Usage
Run the control in your terminal:
powerpipe control run gcp_compliance.control.compute_instance_no_database_write_permission
Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run gcp_compliance.control.compute_instance_no_database_write_permission --share
SQL
This control uses a named query:
with role_with_deployments_manager_permission as ( select distinct name, project from gcp_iam_role, jsonb_array_elements_text(included_permissions) as p where not is_gcp_managed and p in ('cloudsql.databases.update', 'cloudsql.instances.update', 'datastore.databases.update', 'datastore.entities.update', 'datastore.indexes.update', 'spanner.databases.update','spanner.databases.write','spanner.instances.update', 'bigtable.clusters.update', 'bigtable.instances.update', 'bigtable.tables.update', 'redis.instances.update', 'memcache.instances.update', 'datamigration.migrationjobs.update', 'datamigration.connectionprofiles.update', 'datamigration.conversionworkspaces.update', 'alloydb.clusters.update', 'alloydb.instances.update', 'gcp.redisenterprise.com-databases.update', 'gcp.redisenterprise.com-subscriptions.update') ), policy_with_deployments_manager_permission as ( select distinct entity, project from gcp_iam_policy, jsonb_array_elements(bindings) as p, jsonb_array_elements_text(p -> 'members') as entity where p ->> 'role' in ('roles/cloudsql.admin', 'roles/cloudsql.instanceUser', 'roles/datastore.indexAdmin', 'roles/datastore.owner', 'roles/datastore.user', 'roles/alloydb.admin', 'roles/bigtable.admin', 'roles/datamigration.admin', 'roles/datamigration.serviceAgent', 'roles/memcache.admin', 'roles/redis.admin', 'roles/redisenterprisecloud.admin', 'roles/spanner.admin', 'roles/spanner.databaseAdmin') or p ->> 'role' in (select name from role_with_deployments_manager_permission)), compute_instance_with_deployments_manage_permission as ( select distinct self_link from gcp_compute_instance as i, jsonb_array_elements(service_accounts) as e left join policy_with_deployments_manager_permission as b on b.entity = concat('serviceAccount:' || (e ->> 'email')) where b.entity is not null)select i.self_link as resource, case when p.self_link is not null then 'alarm' else 'ok' end as status, case when p.self_link is not null then i.title || ' allow database write permission.' else i.title || ' restrict database write permission.' end as reason , location as location, project as projectfrom gcp_compute_instance as i left join compute_instance_with_deployments_manage_permission as p on p.self_link = i.self_link;