feat: support elasticsearch notification endpoint compression codec (#18562)

internal/config/notify/help.go

@@ -262,6 +262,18 @@ var (
 			Optional:    true,
 			Type:        "sentence",
 		},
+		config.HelpKV{
+			Key:         target.KafkaCompressionCodec,
+			Description: "specify compression_codec of the Kafka cluster",
+			Optional:    true,
+			Type:        "none|snappy|gzip|lz4|zstd",
+		},
+		config.HelpKV{
+			Key:         target.KafkaCompressionLevel,
+			Description: "specify compression level of the Kafka cluster",
+			Optional:    true,
+			Type:        "number",
+		},
 	}
 
 	HelpMQTT = config.HelpKVS{

internal/config/notify/legacy.go

@@ -95,6 +95,14 @@ func SetNotifyKafka(s config.Config, name string, cfg target.KafkaArgs) error {
 			Key:   target.KafkaSASLPassword,
 			Value: cfg.SASL.Password,
 		},
+		config.KV{
+			Key:   target.KafkaCompressionCodec,
+			Value: cfg.Producer.Compression,
+		},
+		config.KV{
+			Key:   target.KafkaCompressionLevel,
+			Value: strconv.Itoa(cfg.Producer.CompressionLevel),
+		},
 	}
 	return nil
 }

internal/config/notify/parse.go

@@ -366,6 +366,14 @@ var (
 			Key:   target.KafkaBatchSize,
 			Value: "0",
 		},
+		config.KV{
+			Key:   target.KafkaCompressionCodec,
+			Value: "",
+		},
+		config.KV{
+			Key:   target.KafkaCompressionLevel,
+			Value: "",
+		},
 	}
 )
 
@@ -483,6 +491,19 @@ func GetNotifyKafka(kafkaKVS map[string]config.KVS) (map[string]target.KafkaArgs
 		kafkaArgs.TLS.ClientTLSCert = env.Get(tlsClientTLSCertEnv, kv.Get(target.KafkaClientTLSCert))
 		kafkaArgs.TLS.ClientTLSKey = env.Get(tlsClientTLSKeyEnv, kv.Get(target.KafkaClientTLSKey))
 
+		compressionCodecEnv := target.EnvKafkaProducerCompressionCodec
+		if k != config.Default {
+			compressionCodecEnv = compressionCodecEnv + config.Default + k
+		}
+		kafkaArgs.Producer.Compression = env.Get(compressionCodecEnv, kv.Get(target.KafkaCompressionCodec))
+
+		compressionLevelEnv := target.EnvKafkaProducerCompressionLevel
+		if k != config.Default {
+			compressionLevelEnv = compressionLevelEnv + config.Default + k
+		}
+		compressionLevel, _ := strconv.Atoi(env.Get(compressionLevelEnv, kv.Get(target.KafkaCompressionLevel)))
+		kafkaArgs.Producer.CompressionLevel = compressionLevel
+
 		saslEnableEnv := target.EnvKafkaSASLEnable
 		if k != config.Default {
 			saslEnableEnv = saslEnableEnv + config.Default + k