kubernetes/staging/src/k8s.io/apiserver/pkg/warning/context.go

type key …

const warningRecorderKey …

type Recorder …

// WithWarningRecorder returns a new context that wraps the provided context and contains the provided Recorder implementation.
// The returned context can be passed to AddWarning().
func WithWarningRecorder(ctx context.Context, recorder Recorder) context.Context { … }

func warningRecorderFrom(ctx context.Context) (Recorder, bool) { … }

// AddWarning records a warning for the specified agent and text to the Recorder added to the provided context using WithWarningRecorder().
// If no Recorder exists in the provided context, this is a no-op.
// agent must be valid UTF-8, and must not contain spaces, quotes, backslashes, or control characters.
// text must be valid UTF-8, and must not contain control characters.
func AddWarning(ctx context.Context, agent string, text string) { … }