Adapt Kafka SSL smoke test with changes in Testcontainers

See gh-42670

Author: snicoll

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-kafka/src/dockerTest/java/smoketest/kafka/ssl/SampleKafkaSslApplicationTests.java

@@ -22,7 +22,7 @@
 import org.junit.jupiter.api.Test;
 import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.kafka.KafkaContainer;
+import org.testcontainers.kafka.ConfluentKafkaContainer;
 import org.testcontainers.utility.MountableFile;
 import smoketest.kafka.Consumer;
 import smoketest.kafka.Producer;
@@ -55,8 +55,8 @@
 class SampleKafkaSslApplicationTests {
 
 	@Container
-	public static KafkaContainer kafka = TestImage.container(KafkaContainer.class)
-		.withEnv("KAFKA_LISTENER_SECURITY_PROTOCOL_MAP", "PLAINTEXT:SSL,BROKER:PLAINTEXT")
+	public static ConfluentKafkaContainer kafka = TestImage.container(ConfluentKafkaContainer.class)
+		.withEnv("KAFKA_LISTENER_SECURITY_PROTOCOL_MAP", "PLAINTEXT:SSL,BROKER:PLAINTEXT,CONTROLLER:PLAINTEXT")
 		.withEnv("KAFKA_AUTO_CREATE_TOPICS_ENABLE", "true")
 		.withEnv("KAFKA_SSL_CLIENT_AUTH", "required")
 		.withEnv("KAFKA_SSL_KEYSTORE_LOCATION", "/etc/kafka/secrets/certs/test-server.p12")
@@ -75,7 +75,7 @@ class SampleKafkaSslApplicationTests {
 	@DynamicPropertySource
 	static void kafkaProperties(DynamicPropertyRegistry registry) {
 		registry.add("spring.kafka.bootstrap-servers",
-				() -> String.format("%s:%s", kafka.getHost(), kafka.getMappedPort(9093)));
+				() -> String.format("%s:%s", kafka.getHost(), kafka.getMappedPort(9092)));
 	}
 
 	@Autowired