Add esmapping-generator to jaeger binary

Signed-off-by: Rohanraj123 <[email protected]>

Author: Rohanraj123

cmd/esmapping-generator/generator/esmapping_generator.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2025 The Jaeger Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generator
+
+import (
+	"fmt"
+
+	"github.com/jaegertracing/jaeger/cmd/esmapping-generator/app"
+	"github.com/jaegertracing/jaeger/cmd/esmapping-generator/app/renderer"
+	"github.com/jaegertracing/jaeger/pkg/es"
+	"github.com/jaegertracing/jaeger/plugin/storage/es/mappings"
+)
+
+func GenerateMappings(options app.Options) string {
+
+	fmt.Printf("Generating mappings with options: %+v\n", options)
+	if _, err := mappings.MappingTypeFromString(options.Mapping); err != nil {
+		return fmt.Sprintf("please pass either 'jaeger-service' or 'jaeger-span' as argument: %v", err)
+	}
+
+	parsedMapping, err := renderer.GetMappingAsString(es.TextTemplateBuilder{}, &options)
+	if err != nil {
+		return fmt.Sprintf("failed to get mapping as string: %v", err)
+	}
+
+	return parsedMapping
+}

cmd/jaeger/main.go

@@ -7,18 +7,22 @@ import (
 	"log"
 
 	"github.com/spf13/viper"
+	"go.uber.org/zap"
 
 	"github.com/jaegertracing/jaeger/cmd/internal/docs"
 	"github.com/jaegertracing/jaeger/cmd/jaeger/internal"
+	"github.com/jaegertracing/jaeger/internal/esmapping"
 	"github.com/jaegertracing/jaeger/pkg/config"
 	"github.com/jaegertracing/jaeger/pkg/version"
 )
 
 func main() {
+	logger, _ := zap.NewDevelopment()
 	v := viper.New()
 	command := internal.Command()
 	command.AddCommand(version.Command())
 	command.AddCommand(docs.Command(v))
+	command.AddCommand(esmapping.Command(logger))
 	config.AddFlags(
 		v,
 		command,

es

@@ -0,0 +1,34 @@
+// Copyright (c) 2025 The Jaeger Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package esmapping
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"go.uber.org/zap"
+
+	"github.com/jaegertracing/jaeger/cmd/esmapping-generator/app"
+	"github.com/jaegertracing/jaeger/cmd/esmapping-generator/generator"
+)
+
+func Command(logger *zap.Logger) *cobra.Command {
+	options := app.Options{}
+
+	command := &cobra.Command{
+		Use:   "es-mappings",
+		Short: "Generate Elasticsearch mappings",
+		Long:  "Generate Elasticsearch mappings using jaeger-esmapping-generator functionality",
+		Run: func(_ *cobra.Command, _ []string) {
+			if options.UseILM == "" {
+				options.UseILM = "false"
+			}
+			result := generator.GenerateMappings(options)
+			fmt.Println(result)
+		},
+	}
+
+	command.Flags().StringVar(&options.Mapping, "mapping", "jaeger-span", "Mapping type to use, e.g. 'jaeger-service' or 'jaeger-span'")
+	return command
+}