BuildMetrics builds a Metrics at the given clock.

NewFileWriter creates a new FileWriter with an output device or file at the given path, and the formatter that formats metrics to a string If /dev/stdout or stdout is given, the standard out is set.

ClockKey is the key associated to a clock.Clock.

NodesMetricsKey is the key associated to a map of node.Metrics.

PodsMetricsKey is the key associated to a map of pod.Metrics.

QueueMetricsKey is the key associated to a queue.Metrics.

FileWriter is a Writer that writes metrics to a file.

HumanReadableFormatter is a Foramtter that formats metrics in a human-readable style.

JSONFormatter is a Formatter that formats metrics to a JSON string.

TableFormatter is a Formatter that formats metrics in a table.

Formatter defines the interface of metrics formatter.

Writer defines the interface of metrics writer.

Metrics represents a metrics at one time point, in the following structure.