cache

type BlobDescriptorCacheProvider ¶

type BlobDescriptorCacheProvider interface {
	distribution.BlobDescriptorService

	RepositoryScoped(repo string) (distribution.BlobDescriptorService, error)
}

BlobDescriptorCacheProvider provides repository scoped BlobDescriptorService cache instances and a global descriptor cache.

type Logger ¶

type Logger interface {
	Errorf(format string, args ...interface{})
}

Logger can be provided on the MetricsTracker to log errors.

Usually, this is just a proxy to dcontext.GetLogger.

type Metrics ¶

type Metrics struct {
	Requests uint64
	Hits     uint64
	Misses   uint64
}

Metrics is used to hold metric counters related to the number of times a cache was hit or missed.

type MetricsTracker ¶

type MetricsTracker interface {
	Hit()
	Miss()
	Metrics() Metrics
	Logger(context.Context) Logger
}

MetricsTracker represents a metric tracker which simply counts the number of hits and misses.