/
handler.go
94 lines (79 loc) · 2.33 KB
/
handler.go
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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Hubble
package flow
import (
"context"
"fmt"
"github.com/prometheus/client_golang/prometheus"
flowpb "github.com/cilium/cilium/api/v1/flow"
v1 "github.com/cilium/cilium/pkg/hubble/api/v1"
"github.com/cilium/cilium/pkg/hubble/metrics/api"
monitorAPI "github.com/cilium/cilium/pkg/monitor/api"
)
type flowHandler struct {
flows *prometheus.CounterVec
context *api.ContextOptions
}
func (h *flowHandler) Init(registry *prometheus.Registry, options api.Options) error {
c, err := api.ParseContextOptions(options)
if err != nil {
return err
}
h.context = c
labels := []string{"protocol", "type", "subtype", "verdict"}
labels = append(labels, h.context.GetLabelNames()...)
h.flows = prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: api.DefaultPrometheusNamespace,
Name: "flows_processed_total",
Help: "Total number of flows processed",
}, labels)
registry.MustRegister(h.flows)
return nil
}
func (h *flowHandler) Status() string {
return h.context.Status()
}
func (h *flowHandler) Context() *api.ContextOptions {
return h.context
}
func (h *flowHandler) ListMetricVec() []*prometheus.MetricVec {
return []*prometheus.MetricVec{h.flows.MetricVec}
}
func (h *flowHandler) ProcessFlow(ctx context.Context, flow *flowpb.Flow) error {
labelValues, err := h.context.GetLabelValues(flow)
if err != nil {
return err
}
var typeName, subType string
eventType := flow.GetEventType().GetType()
switch eventType {
case monitorAPI.MessageTypeAccessLog:
typeName = "L7"
if l7 := flow.GetL7(); l7 != nil {
switch {
case l7.GetDns() != nil:
subType = "DNS"
case l7.GetHttp() != nil:
subType = "HTTP"
case l7.GetKafka() != nil:
subType = "Kafka"
}
}
case monitorAPI.MessageTypeDrop:
typeName = "Drop"
case monitorAPI.MessageTypeCapture:
typeName = "Capture"
case monitorAPI.MessageTypeTrace:
typeName = "Trace"
subType = monitorAPI.TraceObservationPoints[uint8(flow.GetEventType().SubType)]
case monitorAPI.MessageTypePolicyVerdict:
typeName = "PolicyVerdict"
default:
typeName = "Unknown"
subType = fmt.Sprintf("%d", eventType)
}
labels := []string{v1.FlowProtocol(flow), typeName, subType, flow.GetVerdict().String()}
labels = append(labels, labelValues...)
h.flows.WithLabelValues(labels...).Inc()
return nil
}