[query] Change HTTP and TLS server configurations to use OTEL configu…

…rations (#6023)

## Which problem is this PR solving?
- Part of #5996

## Description of the changes
- Removed the custom TLS and HTTP server configurations and replaced
them with OTEL's configurations
- 🛑 Breaking change: the hot-reload of certificates will not happen at
`reload_interval`s rather than immediately on file changes. This makes
Jaeger's behavior similar to OTEL Collector's behavior.

## How was this change tested?
- Unit tests / CI

## Checklist
- [x] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [x] I have signed all commits
- [x] I have added unit tests for the new functionality
- [x] I have run lint and test steps successfully
  - for `jaeger`: `make lint test`
  - for `jaeger-ui`: `yarn lint` and `yarn test`

---------

Signed-off-by: Mahad Zaryab <mahadzaryab1@gmail.com>

cmd/jaeger/internal/extension/jaegerquery/config.go

@@ -6,8 +6,6 @@ package jaegerquery
 import (
 	"github.com/asaskevich/govalidator"
 	"go.opentelemetry.io/collector/component"
-	"go.opentelemetry.io/collector/config/configgrpc"
-	"go.opentelemetry.io/collector/config/confighttp"
 
 	queryApp "github.com/jaegertracing/jaeger/cmd/query/app"
 )
@@ -16,13 +14,9 @@ var _ component.ConfigValidator = (*Config)(nil)
 
 // Config represents the configuration for jaeger-query,
 type Config struct {
-	queryApp.QueryOptionsBase `mapstructure:",squash"`
+	queryApp.QueryOptions `mapstructure:",squash"`
 	// Storage holds configuration related to the various data stores that are to be queried.
 	Storage Storage `mapstructure:"storage"`
-	// HTTP holds the HTTP configuration that the query service uses to serve requests.
-	HTTP confighttp.ServerConfig `mapstructure:"http"`
-	// GRPC holds the GRPC configuration that the query service uses to serve requests.
-	GRPC configgrpc.ServerConfig `mapstructure:"grpc"`
 }
 
 type Storage struct {

cmd/jaeger/internal/extension/jaegerquery/factory.go

@@ -12,6 +12,7 @@ import (
 	"go.opentelemetry.io/collector/config/confignet"
 	"go.opentelemetry.io/collector/extension"
 
+	"github.com/jaegertracing/jaeger/cmd/query/app"
 	"github.com/jaegertracing/jaeger/ports"
 )
 
@@ -27,13 +28,15 @@ func NewFactory() extension.Factory {
 
 func createDefaultConfig() component.Config {
 	return &Config{
-		HTTP: confighttp.ServerConfig{
-			Endpoint: ports.PortToHostPort(ports.QueryHTTP),
-		},
-		GRPC: configgrpc.ServerConfig{
-			NetAddr: confignet.AddrConfig{
-				Endpoint:  ports.PortToHostPort(ports.QueryGRPC),
-				Transport: confignet.TransportTypeTCP,
+		QueryOptions: app.QueryOptions{
+			HTTP: confighttp.ServerConfig{
+				Endpoint: ports.PortToHostPort(ports.QueryHTTP),
+			},
+			GRPC: configgrpc.ServerConfig{
+				NetAddr: confignet.AddrConfig{
+					Endpoint:  ports.PortToHostPort(ports.QueryGRPC),
+					Transport: confignet.TransportTypeTCP,
+				},
 			},
 		},
 	}

cmd/jaeger/internal/extension/jaegerquery/server.go

@@ -108,7 +108,7 @@ func (s *server) Start(_ context.Context, host component.Host) error {
 		// TODO propagate healthcheck updates up to the collector's runtime
 		qs,
 		mqs,
-		s.makeQueryOptions(),
+		&s.config.QueryOptions,
 		tm,
 		telset,
 	)
@@ -158,17 +158,6 @@ func (s *server) createMetricReader(host component.Host) (metricsstore.Reader, e
 	return metricsReader, err
 }
 
-func (s *server) makeQueryOptions() *queryApp.QueryOptions {
-	return &queryApp.QueryOptions{
-		QueryOptionsBase: s.config.QueryOptionsBase,
-
-		// TODO utilize OTEL helpers for creating HTTP/GRPC servers
-		HTTPHostPort: s.config.HTTP.Endpoint,
-		GRPCHostPort: s.config.GRPC.NetAddr.Endpoint,
-		// TODO handle TLS
-	}
-}
-
 func (s *server) Shutdown(ctx context.Context) error {
 	var errs []error
 	if s.server != nil {

cmd/query/app/additional_headers_handler.go

@@ -5,13 +5,15 @@ package app
 
 import (
 	"net/http"
+
+	"go.opentelemetry.io/collector/config/configopaque"
 )
 
-func additionalHeadersHandler(h http.Handler, additionalHeaders http.Header) http.Handler {
+func responseHeadersHandler(h http.Handler, responseHeaders map[string]configopaque.String) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		header := w.Header()
-		for key, values := range additionalHeaders {
-			header[key] = values
+		for key, value := range responseHeaders {
+			header.Set(key, value.String())
 		}
 
 		h.ServeHTTP(w, r)

cmd/query/app/additional_headers_test.go

@@ -10,20 +10,21 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.opentelemetry.io/collector/config/configopaque"
 )
 
-func TestAdditionalHeadersHandler(t *testing.T) {
-	additionalHeaders := http.Header{}
-	additionalHeaders.Add("Access-Control-Allow-Origin", "https://mozilla.org")
-	additionalHeaders.Add("Access-Control-Expose-Headers", "X-My-Custom-Header")
-	additionalHeaders.Add("Access-Control-Expose-Headers", "X-Another-Custom-Header")
-	additionalHeaders.Add("Access-Control-Request-Headers", "field1, field2")
+func TestResponseHeadersHandler(t *testing.T) {
+	responseHeaders := make(map[string]configopaque.String)
+	responseHeaders["Access-Control-Allow-Origin"] = "https://mozilla.org"
+	responseHeaders["Access-Control-Expose-Headers"] = "X-My-Custom-Header"
+	responseHeaders["Access-Control-Expose-Headers"] = "X-Another-Custom-Header"
+	responseHeaders["Access-Control-Request-Headers"] = "field1, field2"
 
 	emptyHandler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		w.Write([]byte{})
 	})
 
-	handler := additionalHeadersHandler(emptyHandler, additionalHeaders)
+	handler := responseHeadersHandler(emptyHandler, responseHeaders)
 	server := httptest.NewServer(handler)
 	defer server.Close()
 
@@ -33,7 +34,7 @@ func TestAdditionalHeadersHandler(t *testing.T) {
 	resp, err := server.Client().Do(req)
 	require.NoError(t, err)
 
-	for k, v := range additionalHeaders {
-		assert.Equal(t, v, resp.Header[k])
+	for k, v := range responseHeaders {
+		assert.Equal(t, []string{v.String()}, resp.Header[k])
 	}
 }

cmd/query/app/flags.go

@@ -16,6 +16,9 @@ import (
 	"time"
 
 	"github.com/spf13/viper"
+	"go.opentelemetry.io/collector/config/configgrpc"
+	"go.opentelemetry.io/collector/config/confighttp"
+	"go.opentelemetry.io/collector/config/configopaque"
 	"go.uber.org/zap"
 
 	"github.com/jaegertracing/jaeger/cmd/query/app/querysvc"
@@ -57,8 +60,8 @@ type UIConfig struct {
 	LogAccess bool `mapstructure:"log_access" valid:"optional"`
 }
 
-// QueryOptionsBase holds configuration for query service shared with jaeger-v2
-type QueryOptionsBase struct {
+// QueryOptions holds configuration for query service shared with jaeger-v2
+type QueryOptions struct {
 	// BasePath is the base path for all HTTP routes.
 	BasePath string `mapstructure:"base_path"`
 	// UIConfig contains configuration related to the Jaeger UIConfig.
@@ -71,22 +74,10 @@ type QueryOptionsBase struct {
 	MaxClockSkewAdjust time.Duration `mapstructure:"max_clock_skew_adjust"  valid:"optional"`
 	// EnableTracing determines whether traces will be emitted by jaeger-query.
 	EnableTracing bool `mapstructure:"enable_tracing"`
-}
-
-// QueryOptions holds configuration for query service
-type QueryOptions struct {
-	QueryOptionsBase
-
-	// AdditionalHeaders
-	AdditionalHeaders http.Header
-	// HTTPHostPort is the host:port address that the query service listens in on for http requests
-	HTTPHostPort string
-	// GRPCHostPort is the host:port address that the query service listens in on for gRPC requests
-	GRPCHostPort string
-	// TLSGRPC configures secure transport (Consumer to Query service GRPC API)
-	TLSGRPC tlscfg.Options
-	// TLSHTTP configures secure transport (Consumer to Query service HTTP API)
-	TLSHTTP tlscfg.Options
+	// HTTP holds the HTTP configuration that the query service uses to serve requests.
+	HTTP confighttp.ServerConfig `mapstructure:"http"`
+	// GRPC holds the GRPC configuration that the query service uses to serve requests.
+	GRPC configgrpc.ServerConfig `mapstructure:"grpc"`
 }
 
 // AddFlags adds flags for QueryOptions
@@ -107,18 +98,18 @@ func AddFlags(flagSet *flag.FlagSet) {
 
 // InitFromViper initializes QueryOptions with properties from viper
 func (qOpts *QueryOptions) InitFromViper(v *viper.Viper, logger *zap.Logger) (*QueryOptions, error) {
-	qOpts.HTTPHostPort = v.GetString(queryHTTPHostPort)
-	qOpts.GRPCHostPort = v.GetString(queryGRPCHostPort)
+	qOpts.HTTP.Endpoint = v.GetString(queryHTTPHostPort)
+	qOpts.GRPC.NetAddr.Endpoint = v.GetString(queryGRPCHostPort)
 	tlsGrpc, err := tlsGRPCFlagsConfig.InitFromViper(v)
 	if err != nil {
 		return qOpts, fmt.Errorf("failed to process gRPC TLS options: %w", err)
 	}
-	qOpts.TLSGRPC = tlsGrpc
+	qOpts.GRPC.TLSSetting = tlsGrpc.ToOtelServerConfig()
 	tlsHTTP, err := tlsHTTPFlagsConfig.InitFromViper(v)
 	if err != nil {
 		return qOpts, fmt.Errorf("failed to process HTTP TLS options: %w", err)
 	}
-	qOpts.TLSHTTP = tlsHTTP
+	qOpts.HTTP.TLSSetting = tlsHTTP.ToOtelServerConfig()
 	qOpts.BasePath = v.GetString(queryBasePath)
 	qOpts.UIConfig.AssetsPath = v.GetString(queryStaticFiles)
 	qOpts.UIConfig.LogAccess = v.GetBool(queryLogStaticAssetsAccess)
@@ -131,7 +122,7 @@ func (qOpts *QueryOptions) InitFromViper(v *viper.Viper, logger *zap.Logger) (*Q
 	if err != nil {
 		logger.Error("Failed to parse headers", zap.Strings("slice", stringSlice), zap.Error(err))
 	} else {
-		qOpts.AdditionalHeaders = headers
+		qOpts.HTTP.ResponseHeaders = mapHTTPHeaderToOTELHeaders(headers)
 	}
 	qOpts.Tenancy = tenancy.InitFromViper(v)
 	qOpts.EnableTracing = v.GetBool(queryEnableTracing)
@@ -169,3 +160,12 @@ func stringSliceAsHeader(slice []string) (http.Header, error) {
 
 	return http.Header(header), nil
 }
+
+func mapHTTPHeaderToOTELHeaders(h http.Header) map[string]configopaque.String {
+	otelHeaders := make(map[string]configopaque.String)
+	for key, values := range h {
+		otelHeaders[key] = configopaque.String(strings.Join(values, ","))
+	}
+
+	return otelHeaders
+}

cmd/query/app/flags_test.go

@@ -5,13 +5,13 @@
 package app
 
 import (
-	"net/http"
 	"strings"
 	"testing"
 	"time"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.opentelemetry.io/collector/config/configopaque"
 	"go.uber.org/zap"
 
 	"github.com/jaegertracing/jaeger/pkg/config"
@@ -39,12 +39,12 @@ func TestQueryBuilderFlags(t *testing.T) {
 	assert.True(t, qOpts.UIConfig.LogAccess)
 	assert.Equal(t, "some.json", qOpts.UIConfig.ConfigFile)
 	assert.Equal(t, "/jaeger", qOpts.BasePath)
-	assert.Equal(t, "127.0.0.1:8080", qOpts.HTTPHostPort)
-	assert.Equal(t, "127.0.0.1:8081", qOpts.GRPCHostPort)
-	assert.Equal(t, http.Header{
-		"Access-Control-Allow-Origin": []string{"blerg"},
-		"Whatever":                    []string{"thing"},
-	}, qOpts.AdditionalHeaders)
+	assert.Equal(t, "127.0.0.1:8080", qOpts.HTTP.Endpoint)
+	assert.Equal(t, "127.0.0.1:8081", qOpts.GRPC.NetAddr.Endpoint)
+	assert.Equal(t, map[string]configopaque.String{
+		"Access-Control-Allow-Origin": "blerg",
+		"Whatever":                    "thing",
+	}, qOpts.HTTP.ResponseHeaders)
 	assert.Equal(t, 10*time.Second, qOpts.MaxClockSkewAdjust)
 }
 
@@ -55,7 +55,7 @@ func TestQueryBuilderBadHeadersFlags(t *testing.T) {
 	})
 	qOpts, err := new(QueryOptions).InitFromViper(v, zap.NewNop())
 	require.NoError(t, err)
-	assert.Nil(t, qOpts.AdditionalHeaders)
+	assert.Nil(t, qOpts.HTTP.ResponseHeaders)
 }
 
 func TestStringSliceAsHeader(t *testing.T) {
@@ -161,8 +161,8 @@ func TestQueryOptionsPortAllocationFromFlags(t *testing.T) {
 			qOpts, err := new(QueryOptions).InitFromViper(v, zap.NewNop())
 			require.NoError(t, err)
 
-			assert.Equal(t, test.expectedHTTPHostPort, qOpts.HTTPHostPort)
-			assert.Equal(t, test.expectedGRPCHostPort, qOpts.GRPCHostPort)
+			assert.Equal(t, test.expectedHTTPHostPort, qOpts.HTTP.Endpoint)
+			assert.Equal(t, test.expectedGRPCHostPort, qOpts.GRPC.NetAddr.Endpoint)
 		})
 	}
 }