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Merge pull request #279 from openziti/influxdb2
Add Influxdb2.go to support InfluxDB v2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,192 @@ | ||
| /* | ||
| Copyright NetFoundry Inc. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| https://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package operation | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| influxdb2 "github.com/influxdata/influxdb-client-go/v2" | ||
| "github.com/influxdata/influxdb-client-go/v2/api/write" | ||
| "github.com/michaelquigley/pfxlog" | ||
| "github.com/openziti/fablab/kernel/model" | ||
| "github.com/openziti/foundation/v2/errorz" | ||
| log "github.com/sirupsen/logrus" | ||
| "net/url" | ||
| "time" | ||
| ) | ||
|
|
||
| func Influx2MetricsReporter() model.Stage { | ||
| return &influx2MetricsReporterStage{} | ||
| } | ||
|
|
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| type influx2MetricsReporterStage struct { | ||
| errorz.ErrorHolderImpl | ||
| } | ||
|
|
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| func (stage *influx2MetricsReporterStage) Execute(run model.Run) error { | ||
| m := run.GetModel() | ||
| urlVar := m.GetRequiredStringVariable(stage, "metrics.influxdb.url") | ||
| db := m.GetRequiredStringVariable(stage, "metrics.influxdb.db") | ||
| token := m.GetRequiredStringVariable(stage, "metrics.influxdb.token") | ||
| org := m.GetRequiredStringVariable(stage, "metrics.influxdb.org") | ||
| bucket := m.GetRequiredStringVariable(stage, "metrics.influxdb.bucket") | ||
|
|
||
| if stage.HasError() { | ||
| return stage.GetError() | ||
| } | ||
|
|
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| influxUrl, err := url.Parse(urlVar) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| config := influx2Config{ | ||
| url: *influxUrl, | ||
| database: db, | ||
| token: token, | ||
| org: org, | ||
| bucket: bucket, | ||
| } | ||
|
|
||
| handler, err := NewInflux2DBMetricsHandler(&config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| m.MetricsHandlers = append(m.MetricsHandlers, handler) | ||
| return nil | ||
| } | ||
|
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| func NewInflux2DBMetricsHandler(cfg *influx2Config) (model.MetricsHandler, error) { | ||
| rep := &influx2Reporter{ | ||
| url: cfg.url, | ||
| database: cfg.bucket, | ||
| token: cfg.token, | ||
| metricsChan: make(chan *hostMetricsEvent2, 10), | ||
| org: cfg.org, | ||
| } | ||
|
|
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| if err := rep.makeClient(); err != nil { | ||
| return nil, fmt.Errorf("unable to make HandlerTypeInfluxDB influxdb. err=%v", err) | ||
| } | ||
|
|
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| go rep.run() | ||
| return rep, nil | ||
| } | ||
|
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| type influx2Reporter struct { | ||
| url url.URL | ||
| database string | ||
| metricsChan chan *hostMetricsEvent2 | ||
| client influxdb2.Client | ||
| token string | ||
| org string | ||
| } | ||
|
|
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| func (reporter *influx2Reporter) AcceptHostMetrics(host *model.Host, event *model.MetricsEvent) { | ||
| reporter.metricsChan <- &hostMetricsEvent2{ | ||
| host: host, | ||
| event: event, | ||
| } | ||
| } | ||
|
|
||
| func (reporter *influx2Reporter) makeClient() error { | ||
| reporter.client = influxdb2.NewClient(reporter.url.String(), reporter.token) | ||
| return nil | ||
| } | ||
|
|
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| func (reporter *influx2Reporter) run() { | ||
| logz := pfxlog.Logger() | ||
| logz.Info("started") | ||
| defer logz.Warn("exited") | ||
|
|
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| pingTicker := time.NewTicker(time.Second * 5) | ||
| defer pingTicker.Stop() | ||
|
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| for { | ||
| select { | ||
| case msg := <-reporter.metricsChan: | ||
| if err := reporter.send(msg); err != nil { | ||
| logz.Printf("unable to send metrics to influxdb. err=%v", err) | ||
| } | ||
| case <-pingTicker.C: | ||
| _, err := reporter.client.Ping(context.Background()) | ||
| if err != nil { | ||
| logz.Printf("got error while sending a ping to influxdb, trying to recreate influxdb. err=%v", err) | ||
|
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| if err = reporter.makeClient(); err != nil { | ||
| logz.Printf("unable to make client connection to influxdb. err=%v", err) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| func AsBatch2(hostEvent *hostMetricsEvent2) ([]*write.Point, error) { | ||
| var pts []*write.Point | ||
|
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| event := hostEvent.event | ||
|
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| tags := make(map[string]string) | ||
|
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| tags["source"] = hostEvent.host.GetId() | ||
| tags["publicIp"] = hostEvent.host.PublicIp | ||
|
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| for k, v := range hostEvent.event.Tags { | ||
| tags[k] = v | ||
| } | ||
|
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| event.Metrics.VisitUngroupedMetrics(func(name string, val interface{}) { | ||
| p := influxdb2.NewPoint(name, tags, map[string]interface{}{"value": val}, event.Timestamp) | ||
| pts = append(pts, p) | ||
| }) | ||
|
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| event.Metrics.VisitGroupedMetrics(func(name string, group model.MetricSet) { | ||
| p := influxdb2.NewPoint(name, tags, group, event.Timestamp) | ||
| pts = append(pts, p) | ||
| }) | ||
|
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| return pts, nil | ||
| } | ||
|
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| func (reporter *influx2Reporter) send(msg *hostMetricsEvent2) error { | ||
| points, err := AsBatch2(msg) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| log.Printf("org: %s, bucket: %s", reporter.org, reporter.database) | ||
| writeAPI := reporter.client.WriteAPI(reporter.org, reporter.database) //reporter.database = bucket name | ||
| for _, p := range points { | ||
| writeAPI.WritePoint(p) | ||
| } | ||
|
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| writeAPI.Flush() | ||
| return nil | ||
| } | ||
|
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| type influx2Config struct { | ||
| url url.URL | ||
| database string | ||
| token string | ||
| org string | ||
| bucket string | ||
| } | ||
|
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| type hostMetricsEvent2 struct { | ||
| host *model.Host | ||
| event *model.MetricsEvent | ||
| } |