telegraf/plugins/inputs/tengine/tengine.go

339 lines
9.0 KiB
Go

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