chore(examples): update docker compose files (#133)

examples/kafka/docker-compose.yml

@@ -1,20 +1,38 @@
-version: '3'
-
-# docker exec --interactive --tty kafka-kafka-1 /opt/kafka/bin/kafka-console-producer.sh --bootstrap-server localhost:9092 --topic test
-# docker exec --interactive --tty kafka-kafka-1 /opt/kafka/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test2 --from-beginning
+# docker exec --interactive --tty broker /bin/kafka-console-producer --bootstrap-server localhost:9092 --topic test
+# docker exec --interactive --tty broker /bin/kafka-console-consumer --bootstrap-server localhost:9092 --topic test2 --from-beginning
 
+# https://github.com/confluentinc/cp-all-in-one/blob/7.6.1-post/cp-all-in-one-community/docker-compose.yml
+# https://docs.confluent.io/platform/current/installation/versions-interoperability.html
 services:
   zookeeper:
-    image: wurstmeister/zookeeper
+    image: confluentinc/cp-zookeeper:7.6.1
+    hostname: zookeeper
+    container_name: zookeeper
     ports:
       - "2181:2181"
-  kafka:
-    image: wurstmeister/kafka:2.13-2.8.1
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+
+  broker:
+    image: confluentinc/cp-kafka:7.6.1
+    hostname: broker
+    container_name: broker
+    depends_on:
+      - zookeeper
     ports:
+      - "29092:29092"
       - "9092:9092"
+      - "9101:9101"
     environment:
-      KAFKA_ADVERTISED_HOST_NAME: 127.0.0.1
-      KAFKA_CREATE_TOPICS: "test:3:1,test2:3:1"
-      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://broker:29092,PLAINTEXT_HOST://localhost:9092
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
+      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
+      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
+      KAFKA_JMX_PORT: 9101
+      KAFKA_JMX_HOSTNAME: localhost
+      AUTO_CREATE_TOPICS: true

examples/kafka/main.go

@@ -12,13 +12,15 @@ import (
 )
 
 func main() {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+
 	hosts := []string{"127.0.0.1:9092"}
-	ctx := context.Background()
 	config := sarama.NewConfig()
 	config.Consumer.Group.Rebalance.Strategy = sarama.NewBalanceStrategyRoundRobin()
 	config.Consumer.Offsets.Initial = sarama.OffsetNewest
 	config.Producer.Return.Successes = true
-	config.Version, _ = sarama.ParseKafkaVersion("2.8.1")
+	config.Version, _ = sarama.ParseKafkaVersion("3.6.2")
 	groupID := "testConsumer"
 
 	source, err := ext.NewKafkaSource(ctx, hosts, groupID, config, "test")

examples/pulsar/docker-compose.yml

@@ -1,24 +1,36 @@
-version: '3'
+# docker exec --interactive --tty pulsar-standalone /pulsar/bin/pulsar-client produce test1 -m "test" -n 10
+# docker exec --interactive --tty pulsar-standalone /pulsar/bin/pulsar-client consume -s sub test2 -n 0
 
 services:
   standalone:
-    image: apachepulsar/pulsar
+    image: apachepulsar/pulsar:3.2.2
+    container_name: pulsar-standalone
     ports:
       - "6650:6650"
     expose:
       - 8080
       - 6650 
     environment:
-      - PULSAR_MEM=" -Xms512m -Xmx512m -XX:MaxDirectMemorySize=1g"
+      - BOOKIE_MEM=" -Xms512m -Xmx512m -XX:MaxDirectMemorySize=1g"
     command: >
       /bin/bash -c
       "bin/apply-config-from-env.py conf/standalone.conf
       && bin/pulsar standalone"
+    networks:
+      - pulsar-network
+
   dashboard:
-    image: apachepulsar/pulsar-dashboard
+    image: apachepulsar/pulsar-dashboard:2.8.1
+    container_name: pulsar-dashboard
     depends_on:
       - standalone
     ports:
       - "80:80"
     environment:
-      - SERVICE_URL=http://standalone:8080
+      - SERVICE_URL=http://standalone:8080
+    networks:
+      - pulsar-network
+
+networks: 
+  pulsar-network:
+    driver: bridge

examples/redis/docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   redis:
     image: redis

examples/redis/pubsub/main.go

@@ -11,7 +11,6 @@ import (
 	ext "github.com/reugn/go-streams/redis"
 )
 
-// docker exec -it pubsub bash
 // https://redis.io/topics/pubsub
 func main() {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
@@ -39,5 +38,6 @@ func main() {
 }
 
 var toUpper = func(msg *redis.Message) string {
+	log.Printf("Got: %s", msg)
 	return strings.ToUpper(msg.Payload)
 }

examples/redis/stream/main.go

@@ -17,7 +17,7 @@ import (
 // XREAD COUNT 1 BLOCK 100 STREAMS stream2 0
 func main() {
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Minute)
-	cancel()
+	defer cancel()
 
 	config := &redis.Options{
 		Addr:     "localhost:6379", // use default Addr
@@ -52,7 +52,7 @@ func main() {
 }
 
 var toUpper = func(msg *redis.XMessage) *redis.XMessage {
-	fmt.Printf("Got: %v\n", msg.Values)
+	log.Printf("Got: %v", msg.Values)
 	values := make(map[string]any, len(msg.Values))
 	for key, element := range msg.Values {
 		values[key] = strings.ToUpper(fmt.Sprintf("%v", element))