github.com/go-graphite/carbonapi@v0.17.0/zipper/helper/http_client.go (about)

     1  package helper
     2  
     3  import (
     4  	"net/http"
     5  
     6  	"github.com/go-graphite/carbonapi/internal/dns"
     7  	"github.com/go-graphite/carbonapi/pkg/tlsconfig"
     8  	"github.com/go-graphite/carbonapi/zipper/types"
     9  	"go.uber.org/zap"
    10  )
    11  
    12  func GetHTTPClient(logger *zap.Logger, config types.BackendV2) *http.Client {
    13  	transport := &http.Transport{
    14  		MaxConnsPerHost:     *config.ConcurrencyLimit,
    15  		MaxIdleConnsPerHost: *config.MaxIdleConnsPerHost,
    16  		IdleConnTimeout:     *config.IdleConnectionTimeout,
    17  		ForceAttemptHTTP2:   config.ForceAttemptHTTP2,
    18  		DialContext:         dns.GetDialContextWithTimeout(config.Timeouts.Connect, *config.KeepAliveInterval),
    19  	}
    20  
    21  	if config.TLSClientConfig != nil {
    22  		tlsConfig, warns, err := tlsconfig.ParseClientTLSConfig(config.TLSClientConfig)
    23  		if err != nil {
    24  			logger.Fatal("failed to initialize client for group",
    25  				zap.String("group_name", config.GroupName),
    26  				zap.Error(err),
    27  			)
    28  		}
    29  		if len(warns) > 0 {
    30  			logger.Warn("insecure options detected, while parsing HTTP Client TLS Config for backed",
    31  				zap.String("group_name", config.GroupName),
    32  				zap.Strings("warnings", warns),
    33  			)
    34  		}
    35  		transport.TLSClientConfig = tlsConfig
    36  	}
    37  
    38  	httpClient := &http.Client{
    39  		Transport: transport,
    40  	}
    41  	return httpClient
    42  }