Document SSL support for Docker Compose and Testcontainers

Closes gh-41137

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/testing/testcontainers/serviceconnections/ssl/MyElasticsearchWithSslIntegrationTests.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012-2025 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.docs.testing.testcontainers.serviceconnections.ssl;
+
+import org.junit.jupiter.api.Test;
+import org.testcontainers.elasticsearch.ElasticsearchContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.data.elasticsearch.DataElasticsearchTest;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.boot.testcontainers.service.connection.Ssl;
+import org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate;
+
+@Testcontainers
+@DataElasticsearchTest
+class MyElasticsearchWithSslIntegrationTests {
+
+	@Ssl
+	@Container
+	@ServiceConnection
+	static ElasticsearchContainer elasticsearch = new ElasticsearchContainer(
+			"docker.elastic.co/elasticsearch/elasticsearch:8.17.2");
+
+	@Autowired
+	private ElasticsearchTemplate elasticsearchTemplate;
+
+	@Test
+	void testElasticsearch() {
+		// ...
+	}
+
+}

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/testing/testcontainers/serviceconnections/ssl/MyRedisWithSslIntegrationTests.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012-2025 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.docs.testing.testcontainers.serviceconnections.ssl;
+
+import com.redis.testcontainers.RedisContainer;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.testcontainers.service.connection.PemKeyStore;
+import org.springframework.boot.testcontainers.service.connection.PemTrustStore;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.data.redis.core.RedisOperations;
+
+@Testcontainers
+@SpringBootTest
+class MyRedisWithSslIntegrationTests {
+
+	@Container
+	@ServiceConnection
+	@PemKeyStore(certificate = "classpath:client.crt", privateKey = "classpath:client.key")
+	@PemTrustStore("classpath:ca.crt")
+	static RedisContainer redis = new SecureRedisContainer("redis:latest");
+
+	@Autowired
+	private RedisOperations<Object, Object> operations;
+
+	@Test
+	void testRedis() {
+		// ...
+	}
+
+}

spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/testing/testcontainers/serviceconnections/ssl/SecureRedisContainer.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2012-2025 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.docs.testing.testcontainers.serviceconnections.ssl;
+
+import com.redis.testcontainers.RedisContainer;
+
+class SecureRedisContainer extends RedisContainer {
+
+	SecureRedisContainer(String dockerImageName) {
+		super(dockerImageName);
+	}
+
+}