Add service connection from Testcontainers Redpanda

Redpanda (https://redpanda.com/) is Kafka-compatible and
Testcontainers provides a module. This commit adds support for
creating KafkaConnectionDetails from a
@ServiceConnection-annotated RedpandaContainer.

See gh-34780

spring-boot-project/spring-boot-testcontainers/build.gradle

@@ -27,6 +27,7 @@ dependencies {
 	optional("org.testcontainers:neo4j")
 	optional("org.testcontainers:postgresql")
 	optional("org.testcontainers:rabbitmq")
+	optional("org.testcontainers:redpanda")
 	optional("org.testcontainers:r2dbc")
 
 	testImplementation(project(":spring-boot-project:spring-boot-tools:spring-boot-test-support"))

spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/redpanda/RedpandaContainerConnectionDetailsFactory.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.testcontainers.service.connection.redpanda;
+
+import java.net.URI;
+import java.util.List;
+
+import org.testcontainers.redpanda.RedpandaContainer;
+
+import org.springframework.boot.autoconfigure.kafka.KafkaConnectionDetails;
+import org.springframework.boot.testcontainers.service.connection.ContainerConnectionDetailsFactory;
+import org.springframework.boot.testcontainers.service.connection.ContainerConnectionSource;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+
+/**
+ * {@link ContainerConnectionDetailsFactory} to create {@link KafkaConnectionDetails} from
+ * a {@link ServiceConnection @ServiceConnection}-annotated {@link RedpandaContainer}.
+ *
+ * @author Eddú Meléndez
+ */
+class RedpandaContainerConnectionDetailsFactory
+		extends ContainerConnectionDetailsFactory<KafkaConnectionDetails, RedpandaContainer> {
+
+	@Override
+	protected KafkaConnectionDetails getContainerConnectionDetails(
+			ContainerConnectionSource<RedpandaContainer> source) {
+		return new RedpandaContainerConnectionDetails(source);
+	}
+
+	/**
+	 * {@link KafkaConnectionDetails} backed by a {@link ContainerConnectionSource}.
+	 */
+	private static final class RedpandaContainerConnectionDetails extends ContainerConnectionDetails
+			implements KafkaConnectionDetails {
+
+		private final RedpandaContainer container;
+
+		private RedpandaContainerConnectionDetails(ContainerConnectionSource<RedpandaContainer> source) {
+			super(source);
+			this.container = source.getContainer();
+		}
+
+		@Override
+		public List<Node> getBootstrapNodes() {
+			URI uri = URI.create(this.container.getBootstrapServers());
+			return List.of(new Node(uri.getHost(), uri.getPort()));
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/redpanda/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Support for testcontainers Redpanda service connections.
+ */
+package org.springframework.boot.testcontainers.service.connection.redpanda;

spring-boot-project/spring-boot-testcontainers/src/main/resources/META-INF/spring.factories

@@ -23,4 +23,5 @@ org.springframework.boot.testcontainers.service.connection.r2dbc.MariaDbR2dbcCon
 org.springframework.boot.testcontainers.service.connection.r2dbc.MsSqlServerR2dbcContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.r2dbc.MySqlR2dbcContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.r2dbc.PostgresR2dbcContainerConnectionDetailsFactory,\
-org.springframework.boot.testcontainers.service.connection.redis.RedisContainerConnectionDetailsFactory
+org.springframework.boot.testcontainers.service.connection.redis.RedisContainerConnectionDetailsFactory,\
+org.springframework.boot.testcontainers.service.connection.redpanda.RedpandaContainerConnectionDetailsFactory

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/service/connection/redpanda/RedpandaContainerConnectionDetailsFactoryIntegrationTests.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2012-2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.testcontainers.service.connection.redpanda;
+
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.redpanda.RedpandaContainer;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.boot.testsupport.testcontainers.DockerImageNames;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.kafka.annotation.KafkaListener;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link RedpandaContainerConnectionDetailsFactory}.
+ *
+ * @author Eddú Meléndez
+ */
+@SpringJUnitConfig
+@Testcontainers(disabledWithoutDocker = true)
+@TestPropertySource(properties = { "spring.kafka.consumer.group-id=test-group",
+		"spring.kafka.consumer.auto-offset-reset=earliest" })
+class RedpandaContainerConnectionDetailsFactoryIntegrationTests {
+
+	@Container
+	@ServiceConnection
+	static final RedpandaContainer redpanda = new RedpandaContainer(DockerImageNames.redpanda());
+
+	@Autowired
+	KafkaTemplate<String, String> kafkaTemplate;
+
+	@Autowired
+	TestListener listener;
+
+	@Test
+	void connectionCanBeMadeToRedpandaContainer() {
+		this.kafkaTemplate.send("test-topic", "test-data");
+		Awaitility.waitAtMost(Duration.ofSeconds(30))
+			.untilAsserted(() -> assertThat(this.listener.messages).containsExactly("test-data"));
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ImportAutoConfiguration(KafkaAutoConfiguration.class)
+	static class TestConfiguration {
+
+		@Bean
+		TestListener testListener() {
+			return new TestListener();
+		}
+
+	}
+
+	static class TestListener {
+
+		private final List<String> messages = new ArrayList<>();
+
+		@KafkaListener(topics = "test-topic")
+		void processMessage(String message) {
+			this.messages.add(message);
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/testcontainers/DockerImageNames.java

@@ -22,6 +22,7 @@ import org.testcontainers.utility.DockerImageName;
  * Create {@link DockerImageName} instances for services used in integration tests.
  *
  * @author Stephane Nicoll
+ * @author Eddú Meléndez
  * @since 2.3.6
  */
 public final class DockerImageNames {
@@ -46,6 +47,8 @@ public final class DockerImageNames {
 
 	private static final String REDIS_VERSION = "4.0.14";
 
+	private static final String REDPANDA_VERSION = "v23.1.2";
+
 	private static final String REGISTRY_VERSION = "2.7.1";
 
 	private DockerImageNames() {
@@ -131,6 +134,14 @@ public final class DockerImageNames {
 		return DockerImageName.parse("redis").withTag(REDIS_VERSION);
 	}
 
+	/**
+	 * Return a {@link DockerImageName} suitable for running Redpanda.
+	 * @return a docker image name for running redpanda
+	 */
+	public static DockerImageName redpanda() {
+		return DockerImageName.parse("docker.redpanda.com/redpandadata/redpanda").withTag(REDPANDA_VERSION);
+	}
+
 	/**
 	 * Return a {@link DockerImageName} suitable for running a Docker registry.
 	 * @return a docker image name for running a registry