Introduce logging adapter for jobqueue

pkg/jobqueue/jobqueue.go

@@ -79,6 +79,18 @@ type JobQueue interface {
 	RefreshHeartbeat(token uuid.UUID)
 }
 
+// SimpleLogger provides a structured logging methods for the jobqueue library.
+type SimpleLogger interface {
+	// Info creates an info-level message and arbitrary amount of key-value string pairs which
+	// can be optionally mapped to fields by underlying implementations.
+	Info(msg string, args ...string)
+
+	// Error creates an error-level message and arbitrary amount of key-value string pairs which
+	// can be optionally mapped to fields by underlying implementations. The first error argument
+	// can be set to nil when no context error is available.
+	Error(err error, msg string, args ...string)
+}
+
 var (
 	ErrNotExist       = errors.New("job does not exist")
 	ErrNotPending     = errors.New("job is not pending")