Add datasource instrumentation

pom.xml

@@ -30,6 +30,8 @@
     <jacoco.version>0.8.5</jacoco.version>
     <nohttp-checkstyle.version>0.0.4.RELEASE</nohttp-checkstyle.version>
     <spring-format.version>0.0.25</spring-format.version>
+    <spring-cloud.version>2020.0.0</spring-cloud.version>
+    <wavefront.version>2.1.0-RC1</wavefront.version>
   </properties>
 
   <dependencies>
@@ -114,6 +116,20 @@
     </dependency>
     <!-- end of webjars -->
 
+    <!-- observability -->
+    <dependency>
+      <groupId>com.wavefront</groupId>
+      <artifactId>wavefront-spring-boot-starter</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.cloud</groupId>
+      <artifactId>spring-cloud-starter-sleuth</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.zipkin.brave</groupId>
+      <artifactId>brave-instrumentation-mysql8</artifactId>
+    </dependency>
+
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-devtools</artifactId>
@@ -121,6 +137,25 @@
     </dependency>
   </dependencies>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.springframework.cloud</groupId>
+        <artifactId>spring-cloud-dependencies</artifactId>
+        <version>${spring-cloud.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+      <dependency>
+        <groupId>com.wavefront</groupId>
+        <artifactId>wavefront-spring-boot-bom</artifactId>
+        <version>${wavefront.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
   <build>
     <plugins>
       <plugin>

src/main/resources/application-mysql.properties

@@ -1,6 +1,6 @@
 # database init, supports mysql too
 database=mysql
-spring.datasource.url=${MYSQL_URL:jdbc:mysql://localhost/petclinic}
+spring.datasource.url=${MYSQL_URL:jdbc:mysql://localhost/petclinic?serverTimezone=UTC&queryInterceptors=brave.mysql8.TracingQueryInterceptor&exceptionInterceptors=brave.mysql8.TracingExceptionInterceptor}
 spring.datasource.username=${MYSQL_USER:petclinic}
 spring.datasource.password=${MYSQL_PASS:petclinic}
 # SQL is written to be idempotent so this is safe

src/main/resources/application.properties

@@ -23,3 +23,6 @@ logging.level.org.springframework=INFO
 
 # Maximum time static resources should be cached
 spring.resources.cache.cachecontrol.max-age=12h
+
+spring.application.name=spring-petclinic
+wavefront.application.name=spring-demos