Adds micronaut

.gitignore

@@ -4,6 +4,8 @@ audit.log
 .cache/
 
 docs/
+dependency-reduced-pom.xml
+svm.jar
 
 ### STS ###
 .apt_generated

customer/java/micronaut/.gitignore

@@ -0,0 +1,14 @@
+Thumbs.db
+.DS_Store
+.gradle
+build/
+target/
+out/
+.idea
+*.iml
+*.ipr
+*.iws
+.project
+.settings
+.classpath
+customer

customer/java/micronaut/.mvn/jvm.config

@@ -0,0 +1 @@
+-noverify -XX:TieredStopAtLevel=1

customer/java/micronaut/.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,110 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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
+
+  http://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.
+*/
+
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL =
+            "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: : " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output direcrory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

customer/java/micronaut/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.5.3/apache-maven-3.5.3-bin.zip

customer/java/micronaut/Dockerfile

@@ -0,0 +1,36 @@
+FROM oracle/graalvm-ce:1.0.0-rc7 as builder
+
+COPY . .
+
+RUN ./mvnw install:install-file -Dfile=/usr/java/latest/jre/lib/svm/builder/svm.jar -DgroupId=com.oracle.substratevm -DartifactId=svm -Dversion=GraalVM-1.0.0-rc7 -Dpackaging=jar
+RUN ./mvnw clean package
+
+RUN java -cp target/customer-0.1.jar io.micronaut.graal.reflect.GraalClassLoadingAnalyzer
+RUN native-image --no-server \
+             --class-path target/customer-0.1.jar \
+       -H:ReflectionConfigurationFiles=target/reflect.json \
+       -H:EnableURLProtocols=http \
+       -H:IncludeResources="logback.xml|application.yml|META-INF/services/*.*" \
+       -H:Name=customer \
+       -H:Class=com.redhat.developer.demos.customer.Application \
+       -H:+ReportUnsupportedElementsAtRuntime \
+       -H:+AllowVMInspection \
+       --rerun-class-initialization-at-runtime='sun.security.jca.JCAUtil$CachedSecureRandomHolder,javax.net.ssl.SSLContext' \
+       --delay-class-initialization-to-runtime=io.netty.handler.codec.http.HttpObjectEncoder,io.netty.handler.codec.http.websocketx.WebSocket00FrameEncoder,io.netty.handler.ssl.util.ThreadLocalInsecureRandom
+
+
+FROM oracle/graalvm-ce:1.0.0-rc7
+
+RUN groupadd -r customer && adduser -r -g customer customer
+USER customer
+
+ENV JAEGER_SERVICE_NAME=customer\
+  JAEGER_ENDPOINT=http://jaeger-collector.istio-system.svc:14268/api/traces\
+  JAEGER_PROPAGATION=b3\
+  JAEGER_SAMPLER_TYPE=const\
+  JAEGER_SAMPLER_PARAM=1
+
+COPY --from=builder ./customer .
+
+EXPOSE 8080
+ENTRYPOINT ["./customer"]

customer/java/micronaut/Dockerfile-openshift

@@ -0,0 +1,19 @@
+FROM oracle/graalvm-ce:1.0.0-rc7
+
+EXPOSE 8080
+COPY target/customer-*.jar customer.jar
+
+ADD . target
+RUN java -cp customer.jar io.micronaut.graal.reflect.GraalClassLoadingAnalyzer
+RUN native-image --no-server \
+             --class-path customer.jar \
+			 -H:ReflectionConfigurationFiles=target/reflect.json \
+			 -H:EnableURLProtocols=http \
+			 -H:IncludeResources="logback.xml|application.yml|META-INF/services/*.*" \
+			 -H:Name=customer \
+			 -H:Class=com.redhat.developer.demos.customer.Application \
+			 -H:+ReportUnsupportedElementsAtRuntime \
+			 -H:+AllowVMInspection \
+			 --rerun-class-initialization-at-runtime='sun.security.jca.JCAUtil$CachedSecureRandomHolder,javax.net.ssl.SSLContext' \
+			 --delay-class-initialization-to-runtime=io.netty.handler.codec.http.HttpObjectEncoder,io.netty.handler.codec.http.websocketx.WebSocket00FrameEncoder,io.netty.handler.ssl.util.ThreadLocalInsecureRandom
+ENTRYPOINT ["./customer"]%

customer/java/micronaut/README.adoc

@@ -0,0 +1,22 @@
+= Installing
+
+IMPORTANT: At the time of writing this service, GraalVM didn't work with microprofile, Vert.X or Spring Boot. For this reason you can only find GraalVM support for micronaut. 
+
+== Kubernetes
+
+`docker build -t example/customer .`
+
+== OpenShift
+
+```
+docker run oracle/graalvm-ce:1.0.0-rc7 cat /usr/java/latest/jre/lib/svm/builder/svm.jar > svm.jar
+
+mvn install:install-file -Dfile=svm.jar \
+                           -DgroupId=com.oracle.substratevm \
+                           -DartifactId=svm \
+                           -Dversion=GraalVM-1.0.0-rc7 \
+                           -Dpackaging=jar
+
+mvn clean package
+docker build -f Dockerfile-openshift -t example/customer .
+```

customer/java/micronaut/micronaut-cli.yml

@@ -0,0 +1,5 @@
+profile: service
+defaultPackage: com.redhat.developer.demos.customer
+---
+testFramework: junit
+sourceLanguage: java