1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
package proxy
import (
"expvar"
"sync/atomic"
)
// Metrics is used to hold metric counters
// related to the proxy
type Metrics struct {
Requests uint64
Hits uint64
Misses uint64
BytesPulled uint64
BytesPushed uint64
}
type proxyMetricsCollector struct {
blobMetrics Metrics
manifestMetrics Metrics
}
// BlobPull tracks metrics about blobs pulled into the cache
func (pmc *proxyMetricsCollector) BlobPull(bytesPulled uint64) {
atomic.AddUint64(&pmc.blobMetrics.Misses, 1)
atomic.AddUint64(&pmc.blobMetrics.BytesPulled, bytesPulled)
}
// BlobPush tracks metrics about blobs pushed to clients
func (pmc *proxyMetricsCollector) BlobPush(bytesPushed uint64) {
atomic.AddUint64(&pmc.blobMetrics.Requests, 1)
atomic.AddUint64(&pmc.blobMetrics.Hits, 1)
atomic.AddUint64(&pmc.blobMetrics.BytesPushed, bytesPushed)
}
// ManifestPull tracks metrics related to Manifests pulled into the cache
func (pmc *proxyMetricsCollector) ManifestPull(bytesPulled uint64) {
atomic.AddUint64(&pmc.manifestMetrics.Misses, 1)
atomic.AddUint64(&pmc.manifestMetrics.BytesPulled, bytesPulled)
}
// ManifestPush tracks metrics about manifests pushed to clients
func (pmc *proxyMetricsCollector) ManifestPush(bytesPushed uint64) {
atomic.AddUint64(&pmc.manifestMetrics.Requests, 1)
atomic.AddUint64(&pmc.manifestMetrics.Hits, 1)
atomic.AddUint64(&pmc.manifestMetrics.BytesPushed, bytesPushed)
}
// proxyMetrics tracks metrics about the proxy cache. This is
// kept globally and made available via expvar.
var proxyMetrics = &proxyMetricsCollector{}
func init() {
registry := expvar.Get("registry")
if registry == nil {
registry = expvar.NewMap("registry")
}
pm := registry.(*expvar.Map).Get("proxy")
if pm == nil {
pm = &expvar.Map{}
pm.(*expvar.Map).Init()
registry.(*expvar.Map).Set("proxy", pm)
}
pm.(*expvar.Map).Set("blobs", expvar.Func(func() interface{} {
return proxyMetrics.blobMetrics
}))
pm.(*expvar.Map).Set("manifests", expvar.Func(func() interface{} {
return proxyMetrics.manifestMetrics
}))
}
|
