traefik/pkg/collector/collector.go

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package collector
import (
"bytes"
"encoding/base64"
"encoding/json"
"net"
"net/http"
"strconv"
"time"
"github.com/mitchellh/hashstructure"
"github.com/traefik/traefik/v2/pkg/config/static"
"github.com/traefik/traefik/v2/pkg/log"
"github.com/traefik/traefik/v2/pkg/redactor"
"github.com/traefik/traefik/v2/pkg/version"
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)
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// collectorURL URL where the stats are sent.
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const collectorURL = "https://collect.traefik.io/9vxmmkcdmalbdi635d4jgc5p5rx0h7h8"
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// Collected data.
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type data struct {
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Version string `json:"version"`
Codename string `json:"codename"`
BuildDate string `json:"buildDate"`
Configuration string `json:"configuration"`
Hash string `json:"hash"`
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}
// Collect anonymous data.
func Collect(staticConfiguration *static.Configuration) error {
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buf, err := createBody(staticConfiguration)
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if err != nil {
return err
}
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resp, err := makeHTTPClient().Post(collectorURL, "application/json; charset=utf-8", buf)
if resp != nil {
_ = resp.Body.Close()
}
return err
}
func createBody(staticConfiguration *static.Configuration) (*bytes.Buffer, error) {
anonConfig, err := redactor.Anonymize(staticConfiguration)
if err != nil {
return nil, err
}
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log.WithoutContext().Infof("Anonymous stats sent to %s: %s", collectorURL, anonConfig)
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hashConf, err := hashstructure.Hash(staticConfiguration, nil)
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if err != nil {
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return nil, err
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}
data := &data{
Version: version.Version,
Codename: version.Codename,
BuildDate: version.BuildDate,
Hash: strconv.FormatUint(hashConf, 10),
Configuration: base64.StdEncoding.EncodeToString([]byte(anonConfig)),
}
buf := new(bytes.Buffer)
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err = json.NewEncoder(buf).Encode(data)
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if err != nil {
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return nil, err
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}
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return buf, err
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}
func makeHTTPClient() *http.Client {
dialer := &net.Dialer{
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Timeout: 30 * time.Second,
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KeepAlive: 30 * time.Second,
DualStack: true,
}
transport := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: dialer.DialContext,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
return &http.Client{Transport: transport}
}