Ali Alrahahleh
parent
1ef5599361
commit
4376345741
|
|
@ -18,6 +18,7 @@ import (
|
|||
_ "github.com/influxdata/telegraf/plugins/inputs/exec"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/filestat"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/github_webhooks"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/graylog"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/haproxy"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/http_response"
|
||||
_ "github.com/influxdata/telegraf/plugins/inputs/httpjson"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,46 @@
|
|||
# GrayLog plugin
|
||||
|
||||
The Graylog plugin can collect data from remote Graylog service URLs.
|
||||
|
||||
Plugin currently support two type of end points:-
|
||||
|
||||
- multiple (Ex http://[graylog-server-ip]:12900/system/metrics/multiple)
|
||||
- namespace (Ex http://[graylog-server-ip]:12900/system/metrics/namespace/{namespace})
|
||||
|
||||
End Point can be a mixe of one multiple end point and several namespaces end points
|
||||
|
||||
|
||||
Note: if namespace end point specified metrics array will be ignored for that call.
|
||||
|
||||
Sample configration
|
||||
```
|
||||
[[inputs.graylog]]
|
||||
## API End Point, currently supported API:
|
||||
## - multiple (Ex http://[graylog-server-ip]:12900/system/metrics/multiple)
|
||||
## - namespace (Ex http://[graylog-server-ip]:12900/system/metrics/namespace/{namespace})
|
||||
## Note if namespace end point specified metrics array will be ignored for that call.
|
||||
## End point can contain namespace and multiple type calls
|
||||
## Please check http://[graylog-server-ip]:12900/api-browser for full list end points
|
||||
|
||||
servers = [
|
||||
"http://10.224.162.16:12900/system/metrics/multiple"
|
||||
]
|
||||
|
||||
#Metrics define metric which will be pulled from GrayLog and reported to the defined Output
|
||||
metrics = [
|
||||
"jvm.cl.loaded",
|
||||
"jvm.memory.pools.Metaspace.committed"
|
||||
]
|
||||
## User name and password
|
||||
username = "put-username-here"
|
||||
password = "put-password-here"
|
||||
|
||||
## Optional SSL Config
|
||||
# ssl_ca = "/etc/telegraf/ca.pem"
|
||||
# ssl_cert = "/etc/telegraf/cert.pem"
|
||||
# ssl_key = "/etc/telegraf/key.pem"
|
||||
## Use SSL but skip chain & host verification
|
||||
# insecure_skip_verify = false
|
||||
```
|
||||
|
||||
Please refer to GrayLog metrics api browser for full metric end points http://10.224.162.16:12900/api-browser
|
||||
|
|
@ -0,0 +1,307 @@
|
|||
package graylog
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/base64"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/influxdata/telegraf"
|
||||
"github.com/influxdata/telegraf/internal"
|
||||
"github.com/influxdata/telegraf/plugins/inputs"
|
||||
)
|
||||
|
||||
type ResponseMetrics struct {
|
||||
total int
|
||||
Metrics []Metric `json:"metrics"`
|
||||
}
|
||||
|
||||
type Metric struct {
|
||||
FullName string `json:"full_name"`
|
||||
Name string `json:"name"`
|
||||
Type string `json:"type"`
|
||||
Fields map[string]interface{} `json:"metric"`
|
||||
}
|
||||
|
||||
type GrayLog struct {
|
||||
Servers []string
|
||||
Metrics []string
|
||||
Username string
|
||||
Password string
|
||||
|
||||
// Path to CA file
|
||||
SSLCA string `toml:"ssl_ca"`
|
||||
// Path to host cert file
|
||||
SSLCert string `toml:"ssl_cert"`
|
||||
// Path to cert key file
|
||||
SSLKey string `toml:"ssl_key"`
|
||||
// Use SSL but skip chain & host verification
|
||||
InsecureSkipVerify bool
|
||||
|
||||
client HTTPClient
|
||||
}
|
||||
|
||||
type HTTPClient interface {
|
||||
// Returns the result of an http request
|
||||
//
|
||||
// Parameters:
|
||||
// req: HTTP request object
|
||||
//
|
||||
// Returns:
|
||||
// http.Response: HTTP respons object
|
||||
// error : Any error that may have occurred
|
||||
MakeRequest(req *http.Request) (*http.Response, error)
|
||||
|
||||
SetHTTPClient(client *http.Client)
|
||||
HTTPClient() *http.Client
|
||||
}
|
||||
|
||||
type Messagebody struct {
|
||||
Metrics []string `json:"metrics"`
|
||||
}
|
||||
|
||||
type RealHTTPClient struct {
|
||||
client *http.Client
|
||||
}
|
||||
|
||||
func (c *RealHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
|
||||
return c.client.Do(req)
|
||||
}
|
||||
|
||||
func (c *RealHTTPClient) SetHTTPClient(client *http.Client) {
|
||||
c.client = client
|
||||
}
|
||||
|
||||
func (c *RealHTTPClient) HTTPClient() *http.Client {
|
||||
return c.client
|
||||
}
|
||||
|
||||
var sampleConfig = `
|
||||
## API End Point, currently supported API:
|
||||
## - multiple (Ex http://[graylog-server-ip]:12900/system/metrics/multiple)
|
||||
## - namespace (Ex http://[graylog-server-ip]:12900/system/metrics/namespace/{namespace})
|
||||
## Note if namespace end point specified metrics array will be ignored for that call.
|
||||
## End point can contain namespace and multiple type calls
|
||||
## Please check http://[graylog-server-ip]:12900/api-browser for full list end points
|
||||
servers = [
|
||||
"http://[graylog-server-ip]:12900/system/metrics/multiple",
|
||||
]
|
||||
|
||||
## metrics list
|
||||
## List of metrics can be found on Graylog webservice documentation
|
||||
## Or by hitting the the web service api http://[graylog-host]:12900/system/metrics
|
||||
metrics = [
|
||||
"jvm.cl.loaded",
|
||||
"jvm.memory.pools.Metaspace.committed"
|
||||
]
|
||||
|
||||
## User name and password
|
||||
username = "put-username-here"
|
||||
password = "put-password-here"
|
||||
|
||||
## Optional SSL Config
|
||||
# ssl_ca = "/etc/telegraf/ca.pem"
|
||||
# ssl_cert = "/etc/telegraf/cert.pem"
|
||||
# ssl_key = "/etc/telegraf/key.pem"
|
||||
## Use SSL but skip chain & host verification
|
||||
# insecure_skip_verify = false
|
||||
`
|
||||
|
||||
func (h *GrayLog) SampleConfig() string {
|
||||
return sampleConfig
|
||||
}
|
||||
|
||||
func (h *GrayLog) Description() string {
|
||||
return "Read flattened metrics from one or more GrayLog HTTP endpoints"
|
||||
}
|
||||
|
||||
// Gathers data for all servers.
|
||||
func (h *GrayLog) Gather(acc telegraf.Accumulator) error {
|
||||
var wg sync.WaitGroup
|
||||
|
||||
if h.client.HTTPClient() == nil {
|
||||
tlsCfg, err := internal.GetTLSConfig(
|
||||
h.SSLCert, h.SSLKey, h.SSLCA, h.InsecureSkipVerify)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
tr := &http.Transport{
|
||||
ResponseHeaderTimeout: time.Duration(3 * time.Second),
|
||||
TLSClientConfig: tlsCfg,
|
||||
}
|
||||
client := &http.Client{
|
||||
Transport: tr,
|
||||
Timeout: time.Duration(4 * time.Second),
|
||||
}
|
||||
h.client.SetHTTPClient(client)
|
||||
}
|
||||
|
||||
errorChannel := make(chan error, len(h.Servers))
|
||||
|
||||
for _, server := range h.Servers {
|
||||
wg.Add(1)
|
||||
go func(server string) {
|
||||
defer wg.Done()
|
||||
if err := h.gatherServer(acc, server); err != nil {
|
||||
errorChannel <- err
|
||||
}
|
||||
}(server)
|
||||
}
|
||||
|
||||
wg.Wait()
|
||||
close(errorChannel)
|
||||
|
||||
// Get all errors and return them as one giant error
|
||||
errorStrings := []string{}
|
||||
for err := range errorChannel {
|
||||
errorStrings = append(errorStrings, err.Error())
|
||||
}
|
||||
|
||||
if len(errorStrings) == 0 {
|
||||
return nil
|
||||
}
|
||||
return errors.New(strings.Join(errorStrings, "\n"))
|
||||
}
|
||||
|
||||
// Gathers data from a particular server
|
||||
// Parameters:
|
||||
// acc : The telegraf Accumulator to use
|
||||
// serverURL: endpoint to send request to
|
||||
// service : the service being queried
|
||||
//
|
||||
// Returns:
|
||||
// error: Any error that may have occurred
|
||||
func (h *GrayLog) gatherServer(
|
||||
acc telegraf.Accumulator,
|
||||
serverURL string,
|
||||
) error {
|
||||
resp, _, err := h.sendRequest(serverURL)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
requestURL, err := url.Parse(serverURL)
|
||||
host, port, _ := net.SplitHostPort(requestURL.Host)
|
||||
var dat ResponseMetrics
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := json.Unmarshal([]byte(resp), &dat); err != nil {
|
||||
return err
|
||||
}
|
||||
for _, m_item := range dat.Metrics {
|
||||
fields := make(map[string]interface{})
|
||||
tags := map[string]string{
|
||||
"server": host,
|
||||
"port": port,
|
||||
"name": m_item.Name,
|
||||
"type": m_item.Type,
|
||||
}
|
||||
h.flatten(m_item.Fields, fields, "")
|
||||
acc.AddFields(m_item.FullName, fields, tags)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Flatten JSON hierarchy to produce field name and field value
|
||||
// Parameters:
|
||||
// item: Item map to flatten
|
||||
// fields: Map to store generated fields.
|
||||
// id: Prefix for top level metric (empty string "")
|
||||
// Returns:
|
||||
// void
|
||||
func (h *GrayLog) flatten(item map[string]interface{}, fields map[string]interface{}, id string) {
|
||||
if id != "" {
|
||||
id = id + "_"
|
||||
}
|
||||
for k, i := range item {
|
||||
switch i.(type) {
|
||||
case int:
|
||||
fields[id+k] = i.(float64)
|
||||
case float64:
|
||||
fields[id+k] = i.(float64)
|
||||
case map[string]interface{}:
|
||||
h.flatten(i.(map[string]interface{}), fields, id+k)
|
||||
default:
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Sends an HTTP request to the server using the GrayLog object's HTTPClient.
|
||||
// Parameters:
|
||||
// serverURL: endpoint to send request to
|
||||
//
|
||||
// Returns:
|
||||
// string: body of the response
|
||||
// error : Any error that may have occurred
|
||||
func (h *GrayLog) sendRequest(serverURL string) (string, float64, error) {
|
||||
headers := map[string]string{
|
||||
"Content-Type": "application/json",
|
||||
"Accept": "application/json",
|
||||
}
|
||||
method := "GET"
|
||||
content := bytes.NewBufferString("")
|
||||
headers["Authorization"] = "Basic " + base64.URLEncoding.EncodeToString([]byte(h.Username+":"+h.Password))
|
||||
// Prepare URL
|
||||
requestURL, err := url.Parse(serverURL)
|
||||
if err != nil {
|
||||
return "", -1, fmt.Errorf("Invalid server URL \"%s\"", serverURL)
|
||||
}
|
||||
if strings.Contains(requestURL.String(), "multiple") {
|
||||
m := &Messagebody{Metrics: h.Metrics}
|
||||
http_body, err := json.Marshal(m)
|
||||
if err != nil {
|
||||
return "", -1, fmt.Errorf("Invalid list of Metrics %s", h.Metrics)
|
||||
}
|
||||
method = "POST"
|
||||
content = bytes.NewBuffer(http_body)
|
||||
}
|
||||
req, err := http.NewRequest(method, requestURL.String(), content)
|
||||
if err != nil {
|
||||
return "", -1, err
|
||||
}
|
||||
// Add header parameters
|
||||
for k, v := range headers {
|
||||
req.Header.Add(k, v)
|
||||
}
|
||||
start := time.Now()
|
||||
resp, err := h.client.MakeRequest(req)
|
||||
if err != nil {
|
||||
return "", -1, err
|
||||
}
|
||||
|
||||
defer resp.Body.Close()
|
||||
responseTime := time.Since(start).Seconds()
|
||||
|
||||
body, err := ioutil.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
return string(body), responseTime, err
|
||||
}
|
||||
|
||||
// Process response
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
err = fmt.Errorf("Response from url \"%s\" has status code %d (%s), expected %d (%s)",
|
||||
requestURL.String(),
|
||||
resp.StatusCode,
|
||||
http.StatusText(resp.StatusCode),
|
||||
http.StatusOK,
|
||||
http.StatusText(http.StatusOK))
|
||||
return string(body), responseTime, err
|
||||
}
|
||||
return string(body), responseTime, err
|
||||
}
|
||||
|
||||
func init() {
|
||||
inputs.Add("graylog", func() telegraf.Input {
|
||||
return &GrayLog{
|
||||
client: &RealHTTPClient{},
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,199 @@
|
|||
package graylog
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/influxdata/telegraf/testutil"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
const validJSON = `
|
||||
{
|
||||
"total": 3,
|
||||
"metrics": [
|
||||
{
|
||||
"full_name": "jvm.cl.loaded",
|
||||
"metric": {
|
||||
"value": 18910
|
||||
},
|
||||
"name": "loaded",
|
||||
"type": "gauge"
|
||||
},
|
||||
{
|
||||
"full_name": "jvm.memory.pools.Metaspace.committed",
|
||||
"metric": {
|
||||
"value": 108040192
|
||||
},
|
||||
"name": "committed",
|
||||
"type": "gauge"
|
||||
},
|
||||
{
|
||||
"full_name": "org.graylog2.shared.journal.KafkaJournal.writeTime",
|
||||
"metric": {
|
||||
"time": {
|
||||
"min": 99
|
||||
},
|
||||
"rate": {
|
||||
"total": 10,
|
||||
"mean": 2
|
||||
},
|
||||
"duration_unit": "microseconds",
|
||||
"rate_unit": "events/second"
|
||||
},
|
||||
"name": "writeTime",
|
||||
"type": "hdrtimer"
|
||||
}
|
||||
]
|
||||
}`
|
||||
|
||||
var validTags = map[string]map[string]string{
|
||||
"jvm.cl.loaded": {
|
||||
"name": "loaded",
|
||||
"type": "gauge",
|
||||
"port": "12900",
|
||||
"server": "localhost",
|
||||
},
|
||||
"jvm.memory.pools.Metaspace.committed": {
|
||||
"name": "committed",
|
||||
"type": "gauge",
|
||||
"port": "12900",
|
||||
"server": "localhost",
|
||||
},
|
||||
"org.graylog2.shared.journal.KafkaJournal.writeTime": {
|
||||
"name": "writeTime",
|
||||
"type": "hdrtimer",
|
||||
"port": "12900",
|
||||
"server": "localhost",
|
||||
},
|
||||
}
|
||||
|
||||
var expectedFields = map[string]map[string]interface{}{
|
||||
"jvm.cl.loaded": {
|
||||
"value": float64(18910),
|
||||
},
|
||||
"jvm.memory.pools.Metaspace.committed": {
|
||||
"value": float64(108040192),
|
||||
},
|
||||
"org.graylog2.shared.journal.KafkaJournal.writeTime": {
|
||||
"time_min": float64(99),
|
||||
"rate_total": float64(10),
|
||||
"rate_mean": float64(2),
|
||||
},
|
||||
}
|
||||
|
||||
const invalidJSON = "I don't think this is JSON"
|
||||
|
||||
const empty = ""
|
||||
|
||||
type mockHTTPClient struct {
|
||||
responseBody string
|
||||
statusCode int
|
||||
}
|
||||
|
||||
// Mock implementation of MakeRequest. Usually returns an http.Response with
|
||||
// hard-coded responseBody and statusCode. However, if the request uses a
|
||||
// nonstandard method, it uses status code 405 (method not allowed)
|
||||
func (c *mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
|
||||
resp := http.Response{}
|
||||
resp.StatusCode = c.statusCode
|
||||
|
||||
// basic error checking on request method
|
||||
allowedMethods := []string{"GET", "HEAD", "POST", "PUT", "DELETE", "TRACE", "CONNECT"}
|
||||
methodValid := false
|
||||
for _, method := range allowedMethods {
|
||||
if req.Method == method {
|
||||
methodValid = true
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if !methodValid {
|
||||
resp.StatusCode = 405 // Method not allowed
|
||||
}
|
||||
|
||||
resp.Body = ioutil.NopCloser(strings.NewReader(c.responseBody))
|
||||
return &resp, nil
|
||||
}
|
||||
|
||||
func (c *mockHTTPClient) SetHTTPClient(_ *http.Client) {
|
||||
}
|
||||
|
||||
func (c *mockHTTPClient) HTTPClient() *http.Client {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Generates a pointer to an HttpJson object that uses a mock HTTP client.
|
||||
// Parameters:
|
||||
// response : Body of the response that the mock HTTP client should return
|
||||
// statusCode: HTTP status code the mock HTTP client should return
|
||||
//
|
||||
// Returns:
|
||||
// *HttpJson: Pointer to an HttpJson object that uses the generated mock HTTP client
|
||||
func genMockGrayLog(response string, statusCode int) []*GrayLog {
|
||||
return []*GrayLog{
|
||||
&GrayLog{
|
||||
client: &mockHTTPClient{responseBody: response, statusCode: statusCode},
|
||||
Servers: []string{
|
||||
"http://localhost:12900/system/metrics/multiple",
|
||||
},
|
||||
Metrics: []string{
|
||||
"jvm.memory.pools.Metaspace.committed",
|
||||
"jvm.cl.loaded",
|
||||
"org.graylog2.shared.journal.KafkaJournal.writeTime",
|
||||
},
|
||||
Username: "test",
|
||||
Password: "test",
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
// Test that the proper values are ignored or collected
|
||||
func TestNormalResponse(t *testing.T) {
|
||||
graylog := genMockGrayLog(validJSON, 200)
|
||||
|
||||
for _, service := range graylog {
|
||||
var acc testutil.Accumulator
|
||||
err := service.Gather(&acc)
|
||||
require.NoError(t, err)
|
||||
for k, v := range expectedFields {
|
||||
acc.AssertContainsTaggedFields(t, k, v, validTags[k])
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Test response to HTTP 500
|
||||
func TestHttpJson500(t *testing.T) {
|
||||
graylog := genMockGrayLog(validJSON, 500)
|
||||
|
||||
var acc testutil.Accumulator
|
||||
err := graylog[0].Gather(&acc)
|
||||
|
||||
assert.NotNil(t, err)
|
||||
assert.Equal(t, 0, acc.NFields())
|
||||
}
|
||||
|
||||
// Test response to malformed JSON
|
||||
func TestHttpJsonBadJson(t *testing.T) {
|
||||
graylog := genMockGrayLog(invalidJSON, 200)
|
||||
|
||||
var acc testutil.Accumulator
|
||||
err := graylog[0].Gather(&acc)
|
||||
|
||||
assert.NotNil(t, err)
|
||||
assert.Equal(t, 0, acc.NFields())
|
||||
}
|
||||
|
||||
// Test response to empty string as response objectgT
|
||||
func TestHttpJsonEmptyResponse(t *testing.T) {
|
||||
graylog := genMockGrayLog(empty, 200)
|
||||
|
||||
var acc testutil.Accumulator
|
||||
err := graylog[0].Gather(&acc)
|
||||
|
||||
assert.NotNil(t, err)
|
||||
assert.Equal(t, 0, acc.NFields())
|
||||
}
|
||||
Loading…
Reference in New Issue