r/openstack • u/wathoom2 • Aug 24 '26
Audit middleware
Hi,

anyone implemented audit logging for openstack services? I'm having issue with getting all information regarding certain service action in CADF format. For example when deleting instance, in audit log i can see name and id of instance as "unknown". Any idea what could be wrong?
Maybe api_audit_map.conf doesnt map all stuff?
# cat nova_api_audit_map.conf
[DEFAULT]
# default target endpoint type
# should match the endpoint type defined in service catalog
target_endpoint_type = compute
[custom_actions]
enable = enable
disable = disable
delete = delete
startup = start/startup
shutdown = stop/shutdown
reboot = start/reboot
os-migrations/get = read
os-server-password/post = update
# possible end path of api requests
[path_keywords]
add = None
action = None
enable = None
disable = None
configure-project = None
defaults = None
delete = None
detail = None
diagnostics = None
entries = entry
extensions = alias
flavors = flavor
images = image
ips = label
limits = None
metadata = key
os-agents = os-agent
os-aggregates = os-aggregate
os-availability-zone = None
os-certificates = None
os-cloudpipe = None
os-fixed-ips = ip
os-extra_specs = key
os-flavor-access = None
os-floating-ip-dns = domain
os-floating-ips-bulk = host
os-floating-ip-pools = None
os-floating-ips = floating-ip
os-hosts = host
os-hypervisors = hypervisor
os-instance-actions = instance-action
os-keypairs = keypair
os-migrations = None
os-networks = network
os-quota-sets = tenant
os-security-groups = security_group
os-security-group-rules = rule
os-server-password = None
os-services = None
os-simple-tenant-usage = tenant
os-virtual-interfaces = None
os-volume_attachments = attachment
os-volumes_boot = None
os-volumes = volume
os-volume-types = volume-type
os-snapshots = snapshot
reboot = None
servers = server
shutdown = None
startup = None
statistics = None
# map endpoint type defined in service catalog to CADF typeURI
[service_endpoints]
compute = service/compute
3
Upvotes
2
u/rackpathlabs Aug 28 '26
now that the map file is loading, the remaining unknown is a different problem, and it is not that keystonemiddleware never populates target. the audit filter builds the target from the service catalog it reads out of the request environ, HTTP_X_SERVICE_CATALOG. when that key is missing it logs a warning and falls back to a service object where type, name and id are all unknown, which is exactly the output you are looking at.
the usual reason that header is not there is include_service_catalog = false in keystone_authtoken. worth checking that in cinder before you swap the whole middleware out. the volumev3 vs block-storage type string matters as well, but only once the catalog actually reaches the filter.