mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-09-20 07:27:25 +02:00
127 lines
3.4 KiB
Go
127 lines
3.4 KiB
Go
package sinks
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import (
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"crypto/tls"
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"encoding/json"
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"errors"
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"fmt"
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cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
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lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
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influxdb2 "github.com/influxdata/influxdb-client-go/v2"
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influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
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)
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type InfluxAsyncSinkConfig struct {
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defaultSinkConfig
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Host string `json:"host,omitempty"`
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Port string `json:"port,omitempty"`
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Database string `json:"database,omitempty"`
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User string `json:"user,omitempty"`
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Password string `json:"password,omitempty"`
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Organization string `json:"organization,omitempty"`
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SSL bool `json:"ssl,omitempty"`
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RetentionPol string `json:"retention_policy,omitempty"`
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// Maximum number of points sent to server in single request. Default 5000
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BatchSize uint `json:"batch_size,omitempty"`
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// Interval, in ms, in which is buffer flushed if it has not been already written (by reaching batch size) . Default 1000ms
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FlushInterval uint `json:"flush_interval,omitempty"`
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}
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type InfluxAsyncSink struct {
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sink
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client influxdb2.Client
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writeApi influxdb2Api.WriteAPI
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retPolicy string
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errors <-chan error
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config InfluxAsyncSinkConfig
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}
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func (s *InfluxAsyncSink) connect() error {
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var auth string
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var uri string
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if s.config.SSL {
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uri = fmt.Sprintf("https://%s:%s", s.config.Host, s.config.Port)
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} else {
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uri = fmt.Sprintf("http://%s:%s", s.config.Host, s.config.Port)
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}
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if len(s.config.User) == 0 {
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auth = s.config.Password
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} else {
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auth = fmt.Sprintf("%s:%s", s.config.User, s.config.Password)
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}
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cclog.ComponentDebug(s.name, "Using URI", uri, "Org", s.config.Organization, "Bucket", s.config.Database)
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clientOptions := influxdb2.DefaultOptions()
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if s.config.BatchSize != 0 {
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clientOptions.SetBatchSize(s.config.BatchSize)
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}
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if s.config.FlushInterval != 0 {
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clientOptions.SetFlushInterval(s.config.FlushInterval)
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}
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clientOptions.SetTLSConfig(
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&tls.Config{
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InsecureSkipVerify: true,
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},
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)
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s.client = influxdb2.NewClientWithOptions(uri, auth, clientOptions)
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s.writeApi = s.client.WriteAPI(s.config.Organization, s.config.Database)
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return nil
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}
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func (s *InfluxAsyncSink) Init(name string, config json.RawMessage) error {
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s.name = fmt.Sprintf("InfluxSink(%s)", name)
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// Set default for maximum number of points sent to server in single request.
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s.config.BatchSize = 100
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if len(config) > 0 {
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err := json.Unmarshal(config, &s.config)
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if err != nil {
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return err
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}
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}
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if len(s.config.Host) == 0 ||
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len(s.config.Port) == 0 ||
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len(s.config.Database) == 0 ||
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len(s.config.Organization) == 0 ||
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len(s.config.Password) == 0 {
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return errors.New("not all configuration variables set required by InfluxAsyncSink")
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}
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// Connect to InfluxDB server
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err := s.connect()
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// Start background: Read from error channel
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s.errors = s.writeApi.Errors()
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go func() {
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for err := range s.errors {
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cclog.ComponentError(s.name, err.Error())
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}
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}()
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return err
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}
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func (s *InfluxAsyncSink) Write(m lp.CCMetric) error {
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s.writeApi.WritePoint(
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m.ToPoint(s.config.MetaAsTags),
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)
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return nil
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}
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func (s *InfluxAsyncSink) Flush() error {
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s.writeApi.Flush()
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return nil
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}
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func (s *InfluxAsyncSink) Close() {
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cclog.ComponentDebug(s.name, "Closing InfluxDB connection")
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s.writeApi.Flush()
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s.client.Close()
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}
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func NewInfluxAsyncSink(name string, config json.RawMessage) (Sink, error) {
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s := new(InfluxAsyncSink)
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s.Init(name, config)
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return s, nil
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}
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