desec-stack/api/desecapi/metrics.py

from prometheus_client import Counter, Histogram, Summary

metrics = {}


def get(name):
    return metrics.get(name)


def set_counter(name, *args, **kwargs):
    metrics[name] = Counter(name, *args, **kwargs)


def set_histogram(name, *args, **kwargs):
    metrics[name] = Histogram(name, *args, **kwargs)


def set_summary(name, *args, **kwargs):
    metrics[name] = Summary(name, *args, **kwargs)


# models.py metrics
set_counter('desecapi_captcha_content_created', 'number of times captcha content created', ['kind'])
set_counter('desecapi_autodelegation_created', 'number of autodelegations added')
set_counter('desecapi_autodelegation_deleted', 'number of autodelegations deleted')
set_histogram('desecapi_messages_queued', 'number of emails queued', ['reason', 'user', 'lane'],
              buckets=[0, 1, float("inf")])

# views.py metrics
set_counter('desecapi_dynDNS12_domain_not_found', 'number of times dynDNS12 domain is not found')

# crypto.py metrics
set_counter('desecapi_key_encryption_success', 'number of times key encryption was successful', ['context'])
set_counter('desecapi_key_decryption_success', 'number of times key decryption was successful', ['context'])

# exception_handlers.py metrics
set_counter('desecapi_database_unavailable', 'number of times database was unavailable')

# pdns.py metrics
set_counter('desecapi_pdns_request_success', 'number of times pdns request was successful', ['method', 'status'])
set_counter('desecapi_pdns_keys_fetched', 'number of times pdns keys were fetched')

# pdns_change_tracker.py metrics
set_counter('desecapi_pdns_catalog_updated', 'number of times pdns catalog was updated successfully')

# throttling.py metrics
set_counter('desecapi_throttle_failure', 'number of requests throttled', ['method', 'scope', 'user'])

# serializers.py metrics
set_counter('desecapi_rrset_list_serializer', 'number of times RRsetListSerializer was initialized')