Use Maven plugin and Paketo buildpack in actuator-webmvc sample

See gh-165

Author: sdeleuze

spring-graalvm-native-samples/actuator-webmvc/README.md

@@ -1,13 +1,7 @@
-# actuator-webmvc
-
-The following actuator endpoints are reachable in this app:
-
-/health
-/beans
-/conditions
-/configprops
-/info
-/env
-/mappings
-/metrics
+Spring Boot project with Spring MVC and Spring Boot actuators.
 
+To build and run the native application packaged in a lightweight container:
+```
+./gradlew bootBuildImage
+docker-compose up
+```

spring-graalvm-native-samples/actuator-webmvc/compile.sh

@@ -27,7 +27,6 @@ GRAALVM_VERSION=`native-image --version`
 echo "Compiling $ARTIFACT with $GRAALVM_VERSION"
 { time native-image \
   --verbose \
-  --initialize-at-build-time=javax.el.ListELResolver,javax.el.BeanELResolver,javax.el.MapELResolver,javax.el.CompositeELResolver \
   -H:Name=$ARTIFACT \
   -cp $CP $MAINCLASS >> output.txt ; } 2>> output.txt
 

spring-graalvm-native-samples/actuator-webmvc/docker-compose.yml

@@ -0,0 +1,6 @@
+version: '3.1'
+services:
+  actuator-webmvc:
+    image: actuator-webmvc:0.0.1-SNAPSHOT
+    ports:
+      - "8080:8080"

spring-graalvm-native-samples/actuator-webmvc/pom.xml

@@ -67,6 +67,14 @@
 			<plugin>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<image>
+						<builder>nebhale/native-image-builder:defer-to-application</builder>
+						<env>
+							<BP_BOOT_NATIVE_IMAGE>1</BP_BOOT_NATIVE_IMAGE>
+						</env>
+					</image>
+				</configuration>
 			</plugin>
 		</plugins>
 	</build>