339 lines
9.0 KiB
Go
339 lines
9.0 KiB
Go
package tengine
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import (
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"bufio"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"sync"
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"time"
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"io"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/internal/tls"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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type Tengine struct {
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Urls []string
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ResponseTimeout internal.Duration
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tls.ClientConfig
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client *http.Client
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}
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var sampleConfig = `
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# An array of Tengine reqstat module URI to gather stats.
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urls = ["http://127.0.0.1/us"]
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# HTTP response timeout (default: 5s)
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# response_timeout = "5s"
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## Optional TLS Config
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# tls_ca = "/etc/telegraf/ca.pem"
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# tls_cert = "/etc/telegraf/cert.cer"
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# tls_key = "/etc/telegraf/key.key"
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## Use TLS but skip chain & host verification
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# insecure_skip_verify = false
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`
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func (n *Tengine) SampleConfig() string {
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return sampleConfig
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}
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func (n *Tengine) Description() string {
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return "Read Tengine's basic status information (ngx_http_reqstat_module)"
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}
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func (n *Tengine) Gather(acc telegraf.Accumulator) error {
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var wg sync.WaitGroup
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// Create an HTTP client that is re-used for each
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// collection interval
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if n.client == nil {
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client, err := n.createHttpClient()
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if err != nil {
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return err
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}
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n.client = client
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}
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for _, u := range n.Urls {
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addr, err := url.Parse(u)
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if err != nil {
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acc.AddError(fmt.Errorf("Unable to parse address '%s': %s", u, err))
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continue
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}
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wg.Add(1)
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go func(addr *url.URL) {
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defer wg.Done()
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acc.AddError(n.gatherUrl(addr, acc))
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}(addr)
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}
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wg.Wait()
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return nil
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}
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func (n *Tengine) createHttpClient() (*http.Client, error) {
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tlsCfg, err := n.ClientConfig.TLSConfig()
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if err != nil {
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return nil, err
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}
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if n.ResponseTimeout.Duration < time.Second {
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n.ResponseTimeout.Duration = time.Second * 5
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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: n.ResponseTimeout.Duration,
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}
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return client, nil
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}
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type TengineSatus struct {
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host string
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bytes_in uint64
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bytes_out uint64
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conn_total uint64
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req_total uint64
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http_2xx uint64
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http_3xx uint64
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http_4xx uint64
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http_5xx uint64
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http_other_status uint64
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rt uint64
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ups_req uint64
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ups_rt uint64
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ups_tries uint64
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http_200 uint64
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http_206 uint64
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http_302 uint64
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http_304 uint64
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http_403 uint64
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http_404 uint64
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http_416 uint64
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http_499 uint64
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http_500 uint64
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http_502 uint64
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http_503 uint64
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http_504 uint64
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http_508 uint64
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http_other_detail_status uint64
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http_ups_4xx uint64
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http_ups_5xx uint64
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}
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func (n *Tengine) gatherUrl(addr *url.URL, acc telegraf.Accumulator) error {
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var tenginestatus TengineSatus
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resp, err := n.client.Get(addr.String())
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if err != nil {
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return fmt.Errorf("error making HTTP request to %s: %s", addr.String(), err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("%s returned HTTP status %s", addr.String(), resp.Status)
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}
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r := bufio.NewReader(resp.Body)
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for {
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line, err := r.ReadString('\n')
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if err != nil || io.EOF == err {
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break
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}
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line_split := strings.Split(strings.TrimSpace(line), ",")
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if len(line_split) != 30 {
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continue
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}
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tenginestatus.host = line_split[0]
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if err != nil {
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return err
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}
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tenginestatus.bytes_in, err = strconv.ParseUint(line_split[1], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.bytes_out, err = strconv.ParseUint(line_split[2], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.conn_total, err = strconv.ParseUint(line_split[3], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.req_total, err = strconv.ParseUint(line_split[4], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_2xx, err = strconv.ParseUint(line_split[5], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_3xx, err = strconv.ParseUint(line_split[6], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_4xx, err = strconv.ParseUint(line_split[7], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_5xx, err = strconv.ParseUint(line_split[8], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_other_status, err = strconv.ParseUint(line_split[9], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.rt, err = strconv.ParseUint(line_split[10], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.ups_req, err = strconv.ParseUint(line_split[11], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.ups_rt, err = strconv.ParseUint(line_split[12], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.ups_tries, err = strconv.ParseUint(line_split[13], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_200, err = strconv.ParseUint(line_split[14], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_206, err = strconv.ParseUint(line_split[15], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_302, err = strconv.ParseUint(line_split[16], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_304, err = strconv.ParseUint(line_split[17], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_403, err = strconv.ParseUint(line_split[18], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_404, err = strconv.ParseUint(line_split[19], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_416, err = strconv.ParseUint(line_split[20], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_499, err = strconv.ParseUint(line_split[21], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_500, err = strconv.ParseUint(line_split[22], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_502, err = strconv.ParseUint(line_split[23], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_503, err = strconv.ParseUint(line_split[24], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_504, err = strconv.ParseUint(line_split[25], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_508, err = strconv.ParseUint(line_split[26], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_other_detail_status, err = strconv.ParseUint(line_split[27], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_ups_4xx, err = strconv.ParseUint(line_split[28], 10, 64)
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if err != nil {
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return err
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}
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tenginestatus.http_ups_5xx, err = strconv.ParseUint(line_split[29], 10, 64)
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if err != nil {
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return err
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}
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tags := getTags(addr, tenginestatus.host)
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fields := map[string]interface{}{
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"bytes_in": tenginestatus.bytes_in,
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"bytes_out": tenginestatus.bytes_out,
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"conn_total": tenginestatus.conn_total,
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"req_total": tenginestatus.req_total,
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"http_2xx": tenginestatus.http_2xx,
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"http_3xx": tenginestatus.http_3xx,
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"http_4xx": tenginestatus.http_4xx,
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"http_5xx": tenginestatus.http_5xx,
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"http_other_status": tenginestatus.http_other_status,
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"rt": tenginestatus.rt,
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"ups_req": tenginestatus.ups_req,
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"ups_rt": tenginestatus.ups_rt,
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"ups_tries": tenginestatus.ups_tries,
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"http_200": tenginestatus.http_200,
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"http_206": tenginestatus.http_206,
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"http_302": tenginestatus.http_302,
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"http_304": tenginestatus.http_304,
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"http_403": tenginestatus.http_403,
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"http_404": tenginestatus.http_404,
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"http_416": tenginestatus.http_416,
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"http_499": tenginestatus.http_499,
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"http_500": tenginestatus.http_500,
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"http_502": tenginestatus.http_502,
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"http_503": tenginestatus.http_503,
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"http_504": tenginestatus.http_504,
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"http_508": tenginestatus.http_508,
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"http_other_detail_status": tenginestatus.http_other_detail_status,
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"http_ups_4xx": tenginestatus.http_ups_4xx,
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"http_ups_5xx": tenginestatus.http_ups_5xx,
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}
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acc.AddFields("tengine", fields, tags)
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}
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return nil
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}
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// Get tag(s) for the tengine plugin
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func getTags(addr *url.URL, server_name string) map[string]string {
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h := addr.Host
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host, port, err := net.SplitHostPort(h)
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if err != nil {
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host = addr.Host
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if addr.Scheme == "http" {
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port = "80"
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} else if addr.Scheme == "https" {
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port = "443"
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} else {
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port = ""
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}
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}
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return map[string]string{"server": host, "port": port, "server_name": server_name}
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}
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func init() {
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inputs.Add("tengine", func() telegraf.Input {
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return &Tengine{}
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})
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}
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