Add environment variable support for Elasticsearch and Kafka passwords in configuration loading

cmd/api-server/config/config.go

@@ -56,5 +56,15 @@ func LoadConfig() *Config {
 		log.Err(err).Msg("Failed to parse config file")
 		return nil
 	}
+	esPassword := os.Getenv("ELASTIC_PASSWORD")
+	if esPassword != "" {
+		config.ElasticsearchConfig.Password = esPassword
+	}
+
+	kafkaPassword := os.Getenv("KAFKA_PASSWORD")
+	if kafkaPassword != "" {
+		config.KafkaConfig.Password = kafkaPassword
+	}
+
 	return &config
 }