Refactor docker compose so default launches everything

spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/src/main/java/example/ZipkinStreamServerApplication.java

@@ -0,0 +1,15 @@
+package example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.sleuth.zipkin.stream.EnableZipkinStreamServer;
+
+@SpringBootApplication
+@EnableZipkinStreamServer
+public class ZipkinStreamServerApplication {
+
+	public static void main(String[] args) throws Exception {
+		SpringApplication.run(ZipkinStreamServerApplication.class, args);
+	}
+
+}

spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/src/main/resources/application.yml

@@ -0,0 +1,26 @@
+server:
+  port: 9411
+
+spring:
+  rabbitmq:
+    host: ${RABBIT_HOST:localhost}
+  datasource:
+    schema: classpath:/mysql.sql
+    url: jdbc:mysql://${MYSQL_HOST:localhost}/test
+    username: root
+    password: root
+# Switch this on to create the schema on startup:
+    initialize: true
+    continueOnError: true
+  sleuth:
+    enabled: false
+zipkin:
+  store:
+    type: mysql # default is inMemory
+
+---
+spring:
+  profiles: test
+zipkin:
+  store:
+    type: mem # default is inMemory