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// SPDX-License-Identifier: GPL-3.0-or-later
package elasticsearch
import (
_ "embed"
"errors"
"net/http"
"sync"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("elasticsearch", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 5,
},
Create: func() module.Module { return New() },
})
}
func New() *Elasticsearch {
return &Elasticsearch{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:9200",
},
Client: web.Client{
Timeout: web.Duration(time.Second * 2),
},
},
ClusterMode: false,
DoNodeStats: true,
DoClusterStats: true,
DoClusterHealth: true,
DoIndicesStats: false,
},
charts: &module.Charts{},
addClusterHealthChartsOnce: &sync.Once{},
addClusterStatsChartsOnce: &sync.Once{},
nodes: make(map[string]bool),
indices: make(map[string]bool),
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
ClusterMode bool `yaml:"cluster_mode" json:"cluster_mode"`
DoNodeStats bool `yaml:"collect_node_stats" json:"collect_node_stats"`
DoClusterHealth bool `yaml:"collect_cluster_health" json:"collect_cluster_health"`
DoClusterStats bool `yaml:"collect_cluster_stats" json:"collect_cluster_stats"`
DoIndicesStats bool `yaml:"collect_indices_stats" json:"collect_indices_stats"`
}
type Elasticsearch struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
addClusterHealthChartsOnce *sync.Once
addClusterStatsChartsOnce *sync.Once
httpClient *http.Client
clusterName string
nodes map[string]bool
indices map[string]bool
}
func (es *Elasticsearch) Configuration() any {
return es.Config
}
func (es *Elasticsearch) Init() error {
err := es.validateConfig()
if err != nil {
es.Errorf("check configuration: %v", err)
return err
}
httpClient, err := es.initHTTPClient()
if err != nil {
es.Errorf("init HTTP client: %v", err)
return err
}
es.httpClient = httpClient
return nil
}
func (es *Elasticsearch) Check() error {
mx, err := es.collect()
if err != nil {
es.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (es *Elasticsearch) Charts() *module.Charts {
return es.charts
}
func (es *Elasticsearch) Collect() map[string]int64 {
mx, err := es.collect()
if err != nil {
es.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (es *Elasticsearch) Cleanup() {
if es.httpClient != nil {
es.httpClient.CloseIdleConnections()
}
}
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