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Merge pull request #36 from coroot/ebpf_l7_http2
HTTP/2 protocol support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package containers | ||
|
|
||
| import ( | ||
| "github.com/coroot/coroot-node-agent/ebpftracer/l7" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "inet.af/netaddr" | ||
| "k8s.io/klog/v2" | ||
| "time" | ||
| ) | ||
|
|
||
| type L7Metrics struct { | ||
| Requests *prometheus.CounterVec | ||
| Latency prometheus.Histogram | ||
| } | ||
|
|
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| func (m *L7Metrics) observe(status, method string, duration time.Duration) { | ||
| if m.Requests != nil { | ||
| var err error | ||
| var c prometheus.Counter | ||
| if method != "" { | ||
| c, err = m.Requests.GetMetricWithLabelValues(status, method) | ||
| } else { | ||
| c, err = m.Requests.GetMetricWithLabelValues(status) | ||
| } | ||
| if err != nil { | ||
| klog.Warningln(err) | ||
| } else { | ||
| c.Inc() | ||
| } | ||
| } | ||
| if m.Latency != nil && duration != 0 { | ||
| m.Latency.Observe(duration.Seconds()) | ||
| } | ||
| } | ||
|
|
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| type L7Stats map[l7.Protocol]map[AddrPair]*L7Metrics // protocol -> dst:actual_dst -> metrics | ||
|
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| func (s L7Stats) get(protocol l7.Protocol, destination, actualDestination netaddr.IPPort) *L7Metrics { | ||
| if protocol == l7.ProtocolHTTP2 { | ||
| protocol = l7.ProtocolHTTP | ||
| } | ||
| protoStats := s[protocol] | ||
| if protoStats == nil { | ||
| protoStats = map[AddrPair]*L7Metrics{} | ||
| s[protocol] = protoStats | ||
| } | ||
| dest := AddrPair{src: destination, dst: actualDestination} | ||
| m := protoStats[dest] | ||
| if m == nil { | ||
| m = &L7Metrics{} | ||
| protoStats[dest] = m | ||
| constLabels := map[string]string{"destination": destination.String(), "actual_destination": actualDestination.String()} | ||
| labels := []string{"status"} | ||
| switch protocol { | ||
| case l7.ProtocolRabbitmq, l7.ProtocolNats: | ||
| labels = append(labels, "method") | ||
| default: | ||
| hOpts := L7Latency[protocol] | ||
| m.Latency = prometheus.NewHistogram( | ||
| prometheus.HistogramOpts{Name: hOpts.Name, Help: hOpts.Help, ConstLabels: constLabels}, | ||
| ) | ||
| } | ||
| cOpts := L7Requests[protocol] | ||
| m.Requests = prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{Name: cOpts.Name, Help: cOpts.Help, ConstLabels: constLabels}, labels, | ||
| ) | ||
| } | ||
| return m | ||
| } | ||
|
|
||
| func (s L7Stats) collect(ch chan<- prometheus.Metric) { | ||
| for _, protoStats := range s { | ||
| for _, m := range protoStats { | ||
| if m.Requests != nil { | ||
| m.Requests.Collect(ch) | ||
| } | ||
| if m.Latency != nil { | ||
| m.Latency.Collect(ch) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (s L7Stats) delete(dst netaddr.IPPort) { | ||
| for _, protoStats := range s { | ||
| for d := range protoStats { | ||
| if d.src == dst { | ||
| delete(protoStats, d) | ||
| } | ||
| } | ||
| } | ||
| } |
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