Add service connection from OpenTelemetry Collector

See gh-35082

spring-boot-project/spring-boot-docker-compose/src/main/java/org/springframework/boot/docker/compose/service/connection/otlp/OpenTelemetryDockerComposeConnectionDetailsFactory.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.docker.compose.service.connection.otlp;
+
+import org.springframework.boot.actuate.autoconfigure.metrics.export.otlp.OtlpConnectionDetails;
+import org.springframework.boot.docker.compose.core.RunningService;
+import org.springframework.boot.docker.compose.service.connection.DockerComposeConnectionDetailsFactory;
+import org.springframework.boot.docker.compose.service.connection.DockerComposeConnectionSource;
+
+/**
+ * {@link DockerComposeConnectionDetailsFactory} to create {@link OtlpConnectionDetails}
+ * for a {@code otlp} service.
+ *
+ * @author Eddú Meléndez
+ */
+class OpenTelemetryDockerComposeConnectionDetailsFactory
+		extends DockerComposeConnectionDetailsFactory<OtlpConnectionDetails> {
+
+	private static final int OTLP_PORT = 4318;
+
+	OpenTelemetryDockerComposeConnectionDetailsFactory() {
+		super("otel/opentelemetry-collector-contrib",
+				"org.springframework.boot.actuate.autoconfigure.metrics.export.otlp.OtlpMetricsExportAutoConfiguration");
+	}
+
+	@Override
+	protected OtlpConnectionDetails getDockerComposeConnectionDetails(DockerComposeConnectionSource source) {
+		return new OpenTelemetryContainerConnectionDetails(source.getRunningService());
+	}
+
+	private static final class OpenTelemetryContainerConnectionDetails extends DockerComposeConnectionDetails
+			implements OtlpConnectionDetails {
+
+		private final String host;
+
+		private final int port;
+
+		private OpenTelemetryContainerConnectionDetails(RunningService source) {
+			super(source);
+			this.host = source.host();
+			this.port = source.ports().get(OTLP_PORT);
+		}
+
+		@Override
+		public String getUrl() {
+			return "http://" + this.host + ":" + this.port + "/v1/metrics";
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-docker-compose/src/main/java/org/springframework/boot/docker/compose/service/connection/otlp/OpenTelemetryTracingDockerComposeConnectionDetailsFactory.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.docker.compose.service.connection.otlp;
+
+import org.springframework.boot.actuate.autoconfigure.tracing.otlp.OtlpTracingConnectionDetails;
+import org.springframework.boot.docker.compose.core.RunningService;
+import org.springframework.boot.docker.compose.service.connection.DockerComposeConnectionDetailsFactory;
+import org.springframework.boot.docker.compose.service.connection.DockerComposeConnectionSource;
+
+/**
+ * {@link DockerComposeConnectionDetailsFactory} to create
+ * {@link OtlpTracingConnectionDetails} for a {@code otlp} service.
+ *
+ * @author Eddú Meléndez
+ */
+class OpenTelemetryTracingDockerComposeConnectionDetailsFactory
+		extends DockerComposeConnectionDetailsFactory<OtlpTracingConnectionDetails> {
+
+	private static final int OTLP_PORT = 4318;
+
+	OpenTelemetryTracingDockerComposeConnectionDetailsFactory() {
+		super("otel/opentelemetry-collector-contrib",
+				"org.springframework.boot.actuate.autoconfigure.tracing.otlp.OtlpAutoConfiguration");
+	}
+
+	@Override
+	protected OtlpTracingConnectionDetails getDockerComposeConnectionDetails(DockerComposeConnectionSource source) {
+		return new OpenTelemetryTracingDockerComposeConnectionDetails(source.getRunningService());
+	}
+
+	private static final class OpenTelemetryTracingDockerComposeConnectionDetails extends DockerComposeConnectionDetails
+			implements OtlpTracingConnectionDetails {
+
+		private final String host;
+
+		private final int port;
+
+		private OpenTelemetryTracingDockerComposeConnectionDetails(RunningService source) {
+			super(source);
+			this.host = source.host();
+			this.port = source.ports().get(OTLP_PORT);
+		}
+
+		@Override
+		public String getEndpoint() {
+			return "http://" + this.host + ":" + this.port + "/v1/traces";
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-docker-compose/src/main/java/org/springframework/boot/docker/compose/service/connection/otlp/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 docker compose OpenTelemetry service connections.
+ */
+package org.springframework.boot.docker.compose.service.connection.otlp;

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

@@ -17,6 +17,8 @@ org.springframework.boot.docker.compose.service.connection.mysql.MySqlJdbcDocker
 org.springframework.boot.docker.compose.service.connection.mysql.MySqlR2dbcDockerComposeConnectionDetailsFactory,\
 org.springframework.boot.docker.compose.service.connection.oracle.OracleJdbcDockerComposeConnectionDetailsFactory,\
 org.springframework.boot.docker.compose.service.connection.oracle.OracleR2dbcDockerComposeConnectionDetailsFactory,\
+org.springframework.boot.docker.compose.service.connection.otlp.OpenTelemetryDockerComposeConnectionDetailsFactory,\
+org.springframework.boot.docker.compose.service.connection.otlp.OpenTelemetryTracingDockerComposeConnectionDetailsFactory,\
 org.springframework.boot.docker.compose.service.connection.postgres.PostgresJdbcDockerComposeConnectionDetailsFactory,\
 org.springframework.boot.docker.compose.service.connection.postgres.PostgresR2dbcDockerComposeConnectionDetailsFactory,\
 org.springframework.boot.docker.compose.service.connection.pulsar.PulsarDockerComposeConnectionDetailsFactory,\

spring-boot-project/spring-boot-docker-compose/src/test/java/org/springframework/boot/docker/compose/service/connection/otlp/OpenTelemetryDockerComposeConnectionDetailsFactoryIntegrationTests.java

@@ -0,0 +1,52 @@
+/*
+ * 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.docker.compose.service.connection.otlp;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.actuate.autoconfigure.metrics.export.otlp.OtlpConnectionDetails;
+import org.springframework.boot.actuate.autoconfigure.tracing.otlp.OtlpTracingConnectionDetails;
+import org.springframework.boot.docker.compose.service.connection.test.AbstractDockerComposeIntegrationTests;
+import org.springframework.boot.testsupport.testcontainers.DockerImageNames;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link OpenTelemetryDockerComposeConnectionDetailsFactory}.
+ *
+ * @author Eddú Meléndez
+ */
+public class OpenTelemetryDockerComposeConnectionDetailsFactoryIntegrationTests
+		extends AbstractDockerComposeIntegrationTests {
+
+	OpenTelemetryDockerComposeConnectionDetailsFactoryIntegrationTests() {
+		super("otlp-compose.yaml", DockerImageNames.opentelemetry());
+	}
+
+	@Test
+	void runCreatesConnectionDetails() {
+		OtlpConnectionDetails connectionDetails = run(OtlpConnectionDetails.class);
+		assertThat(connectionDetails.getUrl()).startsWith("http://").endsWith("/v1/metrics");
+	}
+
+	@Test
+	void runCreatesTracingConnectionDetails() {
+		OtlpTracingConnectionDetails connectionDetails = run(OtlpTracingConnectionDetails.class);
+		assertThat(connectionDetails.getEndpoint()).startsWith("http://").endsWith("/v1/traces");
+	}
+
+}

spring-boot-project/spring-boot-docker-compose/src/test/resources/org/springframework/boot/docker/compose/service/connection/otlp/otlp-compose.yaml

@@ -0,0 +1,5 @@
+services:
+  otlp:
+    image: '{imageName}'
+    ports:
+      - '4318'