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https://github.com/weaveworks/scope.git
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65cebed6c4
The app stopped paying attention to these some time ago. Removing them shrinks reports by 3-10%.
101 lines
2.7 KiB
Go
101 lines
2.7 KiB
Go
package endpoint
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import (
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/weaveworks/scope/probe/endpoint/procspy"
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"github.com/weaveworks/scope/probe/process"
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"github.com/weaveworks/scope/report"
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)
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// Node metadata keys.
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const (
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ReverseDNSNames = "reverse_dns_names"
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SnoopedDNSNames = "snooped_dns_names"
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)
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// ReporterConfig are the config options for the endpoint reporter.
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type ReporterConfig struct {
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HostID string
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HostName string
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SpyProcs bool
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UseConntrack bool
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WalkProc bool
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UseEbpfConn bool
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ProcRoot string
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BufferSize int
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ProcessCache *process.CachingWalker
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Scanner procspy.ConnectionScanner
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DNSSnooper *DNSSnooper
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}
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// Reporter generates Reports containing the Endpoint topology.
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type Reporter struct {
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conf ReporterConfig
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connectionTracker connectionTracker
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natMapper natMapper
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}
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// SpyDuration is an exported prometheus metric
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var SpyDuration = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "scope",
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Subsystem: "probe",
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Name: "spy_duration_seconds",
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Help: "Time in seconds spent spying on active connections.",
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MaxAge: 10 * time.Second, // like statsd
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},
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[]string{},
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)
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// NewReporter creates a new Reporter that invokes procspy.Connections to
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// generate a report.Report that contains every discovered (spied) connection
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// on the host machine, at the granularity of host and port. That information
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// is stored in the Endpoint topology. It optionally enriches that topology
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// with process (PID) information.
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func NewReporter(conf ReporterConfig) *Reporter {
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return &Reporter{
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conf: conf,
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connectionTracker: newConnectionTracker(connectionTrackerConfig{
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HostID: conf.HostID,
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HostName: conf.HostName,
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SpyProcs: conf.SpyProcs,
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UseConntrack: conf.UseConntrack,
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WalkProc: conf.WalkProc,
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UseEbpfConn: conf.UseEbpfConn,
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ProcRoot: conf.ProcRoot,
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BufferSize: conf.BufferSize,
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ProcessCache: conf.ProcessCache,
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Scanner: conf.Scanner,
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DNSSnooper: conf.DNSSnooper,
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}),
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natMapper: makeNATMapper(newConntrackFlowWalker(conf.UseConntrack, conf.ProcRoot, conf.BufferSize, "--any-nat")),
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}
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}
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// Name of this reporter, for metrics gathering
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func (Reporter) Name() string { return "Endpoint" }
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// Stop stop stop
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func (r *Reporter) Stop() {
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r.connectionTracker.Stop()
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r.natMapper.stop()
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if r.conf.Scanner != nil {
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r.conf.Scanner.Stop()
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}
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}
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// Report implements Reporter.
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func (r *Reporter) Report() (report.Report, error) {
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defer func(begin time.Time) {
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SpyDuration.WithLabelValues().Observe(time.Since(begin).Seconds())
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}(time.Now())
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rpt := report.MakeReport()
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r.connectionTracker.ReportConnections(&rpt)
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r.natMapper.applyNAT(rpt, r.conf.HostID)
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return rpt, nil
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}
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