Add config export

shared/config.go

@@ -1,6 +1,7 @@
 package shared
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"net"
@@ -38,6 +39,19 @@ type ConfigOptions struct {
 	Rules                   []Rule                `json:"rules"`
 }
 
+func BuildConfigJson(configOpt ConfigOptions, input option.Options) (string, error) {
+	options := BuildConfig(configOpt, input)
+	var buffer bytes.Buffer
+	json.NewEncoder(&buffer)
+	encoder := json.NewEncoder(&buffer)
+	encoder.SetIndent("", "  ")
+	err := encoder.Encode(options)
+	if err != nil {
+		return "", err
+	}
+	return buffer.String(), nil
+}
+
 // TODO include selectors
 func BuildConfig(configOpt ConfigOptions, input option.Options) option.Options {
 	if configOpt.ExecuteAsIs {