metrics

const (
	// Operations is the count of data-path operations, labelled op, purpose and
	// outcome.
	Operations = "keyforge_operations_total"
	// OperationDuration is how long they took, labelled op and purpose.
	OperationDuration = "keyforge_operation_duration"
	// CacheLookups counts unwrapped-key cache lookups, labelled cache and
	// result (hit or miss).
	CacheLookups = "keyforge_cache_lookups_total"
	// EpochAdvances counts new data key epochs, labelled purpose and reason
	// (first, cap, age, not_active, manual).
	EpochAdvances = "keyforge_epoch_advances_total"
	// Rotations counts KEK rotations, labelled purpose and outcome.
	Rotations = "keyforge_kek_rotations_total"
	// RewrappedKeys counts data keys moved to a new KEK version, labelled
	// outcome (moved, skipped, failed).
	RewrappedKeys = "keyforge_rewrapped_keys_total"
	// RotationOverdue is how many seconds a KEK rotation is past due, labelled
	// purpose. It is zero when nothing is overdue.
	RotationOverdue = "keyforge_kek_rotation_overdue_seconds"
	// JobsStarted counts jobs the scheduler started, labelled kind.
	JobsStarted = "keyforge_jobs_started_total"
	// JobsFailed counts jobs that failed, labelled kind.
	JobsFailed = "keyforge_jobs_failed_total"
	// JobsWaiting is how many due jobs a tick held back, a gauge.
	JobsWaiting = "keyforge_jobs_waiting"
	// JobsInFlight is how many due jobs already had a run, a gauge.
	JobsInFlight = "keyforge_jobs_in_flight"
)

const (
	OutcomeOK             = "ok"
	OutcomeUnavailable    = "unavailable"
	OutcomeUnusable       = "unusable"
	OutcomeAuthentication = "authentication"
	OutcomeInvalid        = "invalid"
	OutcomeRefused        = "refused"
	OutcomeShredded       = "shredded"
	OutcomeError          = "error"
)