Module forwarder 

Annotations for ForwarderConfiguration keys (endpoint, retry, and forwarder settings).

Constants

ADDITIONAL_ENDPOINTS

additional_endpoints—extra intake endpoints (JSON map of host → API keys). Uses a structured test_json because the field uses PickFirst<(DisplayFromStr, _)>.

ALL

All annotations declared in this module, in declaration order.

ALLOW_ARBITRARY_TAGS

allow_arbitrary_tags—signals backend tag validation relaxation.

API_KEY

api_key—Datadog API key for authentication.

DD_URL

dd_url—explicit intake URL, overrides site.

FORWARDER_BACKOFF_BASE

forwarder_backoff_base—base growth rate for retry backoff in seconds.

FORWARDER_BACKOFF_FACTOR

forwarder_backoff_factor—jitter factor for retry backoff.

FORWARDER_BACKOFF_MAX

forwarder_backoff_max—maximum retry backoff duration in seconds.

FORWARDER_CONNECTION_RESET_INTERVAL

forwarder_connection_reset_interval—seconds between connection resets. Schema Float; field u64.

FORWARDER_HIGH_PRIO_BUFFER_SIZE

forwarder_high_prio_buffer_size—max pending requests per endpoint. Schema Float; field usize.

FORWARDER_HTTP_PROTOCOL

forwarder_http_protocol—HTTP version selection for outgoing forwarder requests.

FORWARDER_NUM_WORKERS

forwarder_num_workers—max concurrent requests per endpoint. Schema Float; field usize.

FORWARDER_RECOVERY_INTERVAL

forwarder_recovery_interval—error count decrease on success. Schema Float; field u32.

FORWARDER_RECOVERY_RESET

forwarder_recovery_reset—reset error count on successful request.

FORWARDER_RETRY_QUEUE_MAX_SIZE

forwarder_retry_queue_max_size—(deprecated) max in-memory retry queue size in bytes. Schema Float; field Option<u64>.

FORWARDER_RETRY_QUEUE_PAYLOADS_MAX_SIZE

forwarder_retry_queue_payloads_max_size—max in-memory retry queue size in bytes. Schema Float; field Option<u64>.

FORWARDER_STORAGE_MAX_DISK_RATIO

forwarder_storage_max_disk_ratio—max disk usage fraction before stopping on-disk queue.

FORWARDER_STORAGE_MAX_SIZE_IN_BYTES

forwarder_storage_max_size_in_bytes—max on-disk retry queue size. Schema Float; field u64.

FORWARDER_STORAGE_PATH

forwarder_storage_path—directory for on-disk retry queue.

FORWARDER_TIMEOUT

forwarder_timeout—request timeout in seconds. Schema Float; field u64.

MIN_TLS_VERSION

min_tls_version—minimum TLS version for Datadog intake forwarding.

OBSERVABILITY_PIPELINES_WORKER_METRICS_ENABLED

observability_pipelines_worker.metrics.enabled—route metrics to OPW.

OBSERVABILITY_PIPELINES_WORKER_METRICS_URL

observability_pipelines_worker.metrics.url—OPW metrics intake URL.

SITE

site—Datadog site domain (for example, datadoghq.com).

SKIP_SSL_VALIDATION

skip_ssl_validation—disables TLS certificate validation for Datadog intake forwarding.

VECTOR_METRICS_ENABLED

vector.metrics.enabled—route metrics to OPW (legacy alias).

VECTOR_METRICS_URL

vector.metrics.url—OPW metrics intake URL (legacy alias).