Adding upstream version 1.34.4.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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4963 changed files with 677545 additions and 0 deletions
299
plugins/inputs/icinga2/icinga2.go
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299
plugins/inputs/icinga2/icinga2.go
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//go:generate ../../../tools/readme_config_includer/generator
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package icinga2
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import (
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_ "embed"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"time"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/config"
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"github.com/influxdata/telegraf/internal/choice"
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"github.com/influxdata/telegraf/plugins/common/tls"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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//go:embed sample.conf
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var sampleConfig string
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var levels = []string{"ok", "warning", "critical", "unknown"}
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type Icinga2 struct {
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Server string `toml:"server"`
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Objects []string `toml:"objects"`
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Status []string `toml:"status"`
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ObjectType string `toml:"object_type" deprecated:"1.26.0;1.35.0;use 'objects' instead"`
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Username string `toml:"username"`
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Password string `toml:"password"`
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ResponseTimeout config.Duration `toml:"response_timeout"`
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tls.ClientConfig
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Log telegraf.Logger `toml:"-"`
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client *http.Client
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}
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type resultObject struct {
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Results []struct {
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Attrs struct {
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CheckCommand string `json:"check_command"`
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DisplayName string `json:"display_name"`
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Name string `json:"name"`
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State float64 `json:"state"`
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HostName string `json:"host_name"`
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} `json:"attrs"`
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Name string `json:"name"`
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Joins struct{} `json:"joins"`
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Meta struct{} `json:"meta"`
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Type string `json:"type"`
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} `json:"results"`
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}
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type resultCIB struct {
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Results []struct {
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Status map[string]interface{} `json:"status"`
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} `json:"results"`
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}
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type resultPerfdata struct {
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Results []struct {
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Perfdata []struct {
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Label string `json:"label"`
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Value float64 `json:"value"`
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} `json:"perfdata"`
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} `json:"results"`
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}
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func (*Icinga2) SampleConfig() string {
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return sampleConfig
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}
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func (i *Icinga2) Init() error {
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statusEndpoints := []string{"ApiListener", "CIB", "IdoMysqlConnection", "IdoPgsqlConnection"}
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if err := choice.CheckSlice(i.Status, statusEndpoints); err != nil {
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return fmt.Errorf("config option 'status': %w", err)
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}
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if i.ResponseTimeout < config.Duration(time.Second) {
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i.ResponseTimeout = config.Duration(time.Second * 5)
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}
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client, err := i.createHTTPClient()
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if err != nil {
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return err
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}
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i.client = client
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// For backward config compatibility
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if i.ObjectType != "" {
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i.Objects = []string{i.ObjectType}
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}
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objectEndpoints := []string{"services", "hosts"}
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if err := choice.CheckSlice(i.Objects, objectEndpoints); err != nil {
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return fmt.Errorf("config option 'objects': %w", err)
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}
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return nil
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}
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func (i *Icinga2) Gather(acc telegraf.Accumulator) error {
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// Collect /v1/objects
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for _, objectType := range i.Objects {
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requestURL := "%s/v1/objects/%s?attrs=name&attrs=display_name&attrs=state&attrs=check_command"
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// Note: attrs=host_name is only valid for 'services' requests, using check.Attrs.HostName for the host
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// 'hosts' requests will need to use attrs=name only, using check.Attrs.Name for the host
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if objectType == "services" {
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requestURL += "&attrs=host_name"
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}
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address := fmt.Sprintf(requestURL, i.Server, objectType)
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resp, err := i.icingaRequest(address)
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if err != nil {
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return err
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}
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result := resultObject{}
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err = parseObjectResponse(resp, &result)
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if err != nil {
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return fmt.Errorf("could not parse object response: %w", err)
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}
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i.gatherObjects(acc, result, objectType)
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}
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// Collect /v1/status
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for _, statusType := range i.Status {
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address := fmt.Sprintf("%s/v1/status/%s", i.Server, statusType)
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resp, err := i.icingaRequest(address)
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if err != nil {
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return err
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}
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tags := map[string]string{
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"component": statusType,
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}
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var fields map[string]interface{}
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switch statusType {
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case "ApiListener":
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fields, err = parsePerfdataResponse(resp)
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case "CIB":
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fields, err = parseCIBResponse(resp)
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case "IdoMysqlConnection":
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fields, err = parsePerfdataResponse(resp)
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case "IdoPgsqlConnection":
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fields, err = parsePerfdataResponse(resp)
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}
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if err != nil {
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return fmt.Errorf("could not parse %s response: %w", statusType, err)
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}
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acc.AddFields("icinga2_status", fields, tags)
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}
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return nil
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}
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func (i *Icinga2) gatherObjects(acc telegraf.Accumulator, checks resultObject, objectType string) {
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for _, check := range checks.Results {
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serverURL, err := url.Parse(i.Server)
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if err != nil {
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i.Log.Error(err.Error())
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continue
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}
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state := int64(check.Attrs.State)
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fields := map[string]interface{}{
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"name": check.Attrs.Name,
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"state_code": state,
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}
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// source is dependent on 'services' or 'hosts' check
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source := check.Attrs.Name
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if objectType == "services" {
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source = check.Attrs.HostName
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}
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tags := map[string]string{
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"display_name": check.Attrs.DisplayName,
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"check_command": check.Attrs.CheckCommand,
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"source": source,
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"state": levels[state],
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"server": serverURL.Hostname(),
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"scheme": serverURL.Scheme,
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"port": serverURL.Port(),
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}
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acc.AddFields("icinga2_"+objectType, fields, tags)
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}
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}
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func (i *Icinga2) createHTTPClient() (*http.Client, error) {
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tlsCfg, err := i.ClientConfig.TLSConfig()
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if err != nil {
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return nil, err
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}
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client := &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: tlsCfg,
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},
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Timeout: time.Duration(i.ResponseTimeout),
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}
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return client, nil
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}
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func (i *Icinga2) icingaRequest(address string) (*http.Response, error) {
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req, err := http.NewRequest("GET", address, nil)
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if err != nil {
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return nil, err
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}
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if i.Username != "" {
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req.SetBasicAuth(i.Username, i.Password)
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}
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resp, err := i.client.Do(req)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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func parseObjectResponse(resp *http.Response, result *resultObject) error {
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err := json.NewDecoder(resp.Body).Decode(&result)
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if err != nil {
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return err
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}
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err = resp.Body.Close()
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if err != nil {
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return err
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}
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return nil
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}
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func parseCIBResponse(resp *http.Response) (map[string]interface{}, error) {
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result := resultCIB{}
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err := json.NewDecoder(resp.Body).Decode(&result)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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if len(result.Results) == 0 {
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return nil, errors.New("no results in Icinga2 API response")
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}
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return result.Results[0].Status, nil
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}
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func parsePerfdataResponse(resp *http.Response) (map[string]interface{}, error) {
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result := resultPerfdata{}
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err := json.NewDecoder(resp.Body).Decode(&result)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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if len(result.Results) == 0 {
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return nil, errors.New("no results in Icinga2 API response")
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}
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fields := make(map[string]interface{})
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for _, item := range result.Results[0].Perfdata {
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i := strings.Index(item.Label, "-")
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if i > 0 {
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fields[item.Label[i+1:]] = item.Value
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} else {
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fields[item.Label] = item.Value
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}
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}
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return fields, nil
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}
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func init() {
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inputs.Add("icinga2", func() telegraf.Input {
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return &Icinga2{
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Server: "https://localhost:5665",
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Objects: []string{"services"},
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ResponseTimeout: config.Duration(time.Second * 5),
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}
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})
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}
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