Add support for Pulsar container

Recently, spring pulsar was integrated in spring boot with
`ConnectionDetails` and `ServiceConnection`.

start-site/src/main/java/io/spring/start/site/container/SimpleDockerServiceResolver.java

@@ -41,6 +41,7 @@ public SimpleDockerServiceResolver() {
 		this.dockerServices.put("mysql", mysql());
 		this.dockerServices.put("oracle", oracle());
 		this.dockerServices.put("postgres", postgres());
+		this.dockerServices.put("pulsar", pulsar());
 		this.dockerServices.put("rabbit", rabbit());
 		this.dockerServices.put("redis", redis());
 		this.dockerServices.put("sqlServer", sqlServer());
@@ -86,6 +87,11 @@ private static DockerService postgres() {
 		return new DockerService("postgres", "latest", "https://hub.docker.com/_/postgres", 5432);
 	}
 
+	private static DockerService pulsar() {
+		return new DockerService("apachepulsar/pulsar", "latest", "https://hub.docker.com/r/apachepulsar/pulsar", 6650,
+				8080);
+	}
+
 	private static DockerService rabbit() {
 		return new DockerService("rabbitmq", "latest", "https://hub.docker.com/_/rabbitmq", 5672);
 	}

start-site/src/main/java/io/spring/start/site/extension/dependency/springpulsar/SpringPulsarProjectGenerationConfiguration.java

@@ -16,17 +16,23 @@
 
 package io.spring.start.site.extension.dependency.springpulsar;
 
+import io.spring.initializr.generator.condition.ConditionalOnPlatformVersion;
 import io.spring.initializr.generator.condition.ConditionalOnRequestedDependency;
 import io.spring.initializr.generator.project.ProjectDescription;
 import io.spring.initializr.generator.project.ProjectGenerationConfiguration;
 import io.spring.initializr.metadata.InitializrMetadata;
 
+import io.spring.start.site.container.ComposeFileCustomizer;
+import io.spring.start.site.container.DockerServiceResolver;
+import io.spring.start.site.container.ServiceConnections;
+import io.spring.start.site.container.ServiceConnectionsCustomizer;
 import org.springframework.context.annotation.Bean;
 
 /**
  * Configuration for generation of projects that depend on Pulsar.
  *
  * @author Chris Bono
+ * @author Eddú Meléndez
  */
 @ProjectGenerationConfiguration
 @ConditionalOnRequestedDependency("pulsar")
@@ -39,4 +45,20 @@ SpringPulsarBinderBuildCustomizer pulsarBinderBuildCustomizer(InitializrMetadata
 		return new SpringPulsarBinderBuildCustomizer(metadata, description);
 	}
 
+	@Bean
+	@ConditionalOnRequestedDependency("testcontainers")
+	@ConditionalOnPlatformVersion("3.2.0-SNAPSHOT")
+	ServiceConnectionsCustomizer pulsarServiceConnectionsCustomizer(DockerServiceResolver serviceResolver) {
+		return (serviceConnections) -> serviceResolver.doWith("pulsar",
+				(service) -> serviceConnections.addServiceConnection(ServiceConnections.ServiceConnection
+					.ofContainer("pulsar", service, "org.testcontainers.containers.PulsarContainer", false)));
+	}
+
+	@Bean
+	@ConditionalOnRequestedDependency("docker-compose")
+	ComposeFileCustomizer pulsarComposeFileCustomizer(DockerServiceResolver serviceResolver) {
+		return (composeFile) -> serviceResolver.doWith("pulsar",
+				(service) -> composeFile.services().add("pulsar", service));
+	}
+
 }