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// SPDX-License-Identifier: GPL-3.0-or-later
package couchdb
import (
_ "embed"
"errors"
"net/http"
"strings"
"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("couchdb", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 10,
},
Create: func() module.Module { return New() },
})
}
func New() *CouchDB {
return &CouchDB{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:5984",
},
Client: web.Client{
Timeout: web.Duration(time.Second * 2),
},
},
Node: "_local",
},
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
Node string `yaml:"node" json:"node"`
Databases string `yaml:"databases" json:"databases"`
}
type CouchDB struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
httpClient *http.Client
databases []string
}
func (cdb *CouchDB) Configuration() any {
return cdb.Config
}
func (cdb *CouchDB) Init() error {
err := cdb.validateConfig()
if err != nil {
cdb.Errorf("check configuration: %v", err)
return err
}
cdb.databases = strings.Fields(cdb.Config.Databases)
httpClient, err := cdb.initHTTPClient()
if err != nil {
cdb.Errorf("init HTTP client: %v", err)
return err
}
cdb.httpClient = httpClient
charts, err := cdb.initCharts()
if err != nil {
cdb.Errorf("init charts: %v", err)
return err
}
cdb.charts = charts
return nil
}
func (cdb *CouchDB) Check() error {
if err := cdb.pingCouchDB(); err != nil {
cdb.Error(err)
return err
}
mx, err := cdb.collect()
if err != nil {
cdb.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (cdb *CouchDB) Charts() *Charts {
return cdb.charts
}
func (cdb *CouchDB) Collect() map[string]int64 {
mx, err := cdb.collect()
if err != nil {
cdb.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (cdb *CouchDB) Cleanup() {
if cdb.httpClient == nil {
return
}
cdb.httpClient.CloseIdleConnections()
}
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