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update elastic client in index server #349

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update elastic client in index server #349

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46 changes: 9 additions & 37 deletions src/cloud/indexer/indexer_server.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,6 @@
package main

import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"net/http"
_ "net/http/pprof"

Expand All @@ -36,6 +32,7 @@ import (

"px.dev/pixie/src/cloud/indexer/controllers"
"px.dev/pixie/src/cloud/indexer/md"
"px.dev/pixie/src/cloud/shared/esutils"
"px.dev/pixie/src/cloud/vzmgr/vzmgrpb"
"px.dev/pixie/src/shared/services"
"px.dev/pixie/src/shared/services/env"
Expand Down Expand Up @@ -67,41 +64,16 @@ func newVZMgrClient() (vzmgrpb.VZMgrServiceClient, error) {
return vzmgrpb.NewVZMgrServiceClient(vzmgrChannel), nil
}

func getESHTTPSClient() (*http.Client, error) {
caFile := viper.GetString("es_ca_cert")
caCert, err := ioutil.ReadFile(caFile)
if err != nil {
return nil, err
}
caCertPool := x509.NewCertPool()
ok := caCertPool.AppendCertsFromPEM(caCert)
if !ok {
return nil, fmt.Errorf("failed to append caCert to pool")
}
tlsConfig := &tls.Config{
RootCAs: caCertPool,
}
tlsConfig.BuildNameToCertificate()
transport := &http.Transport{
TLSClientConfig: tlsConfig,
}
httpClient := &http.Client{
Transport: transport,
}
return httpClient, nil
}

func mustConnectElastic() *elastic.Client {
esURL := viper.GetString("es_url")
httpClient, err := getESHTTPSClient()
if err != nil {
log.WithError(err).Fatal("Failed to create HTTPS client")
}
es, err := elastic.NewClient(elastic.SetURL(esURL),
elastic.SetHttpClient(httpClient),
elastic.SetBasicAuth(viper.GetString("es_user"), viper.GetString("es_passwd")),
// Sniffing seems to be broken with TLS, don't turn this on unless you want pain.
elastic.SetSniff(false))

es, err := esutils.NewEsClient(&esutils.Config{
URL: []string{esURL},
User: viper.GetString("es_user"),
Passwd: viper.GetString("es_passwd"),
CaCertFile: viper.GetString("es_ca_cert"),
})

if err != nil {
log.WithError(err).Fatalf("Failed to connect to elastic at url: %s", esURL)
}
Expand Down