Installing graalvm and usage to build binary for deploying, need some improvements

build.gradle

@@ -10,6 +10,7 @@ plugins {
 	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
 	id 'java'
 	id 'com.vaadin'
+	id 'org.graalvm.buildtools.native' version '0.10.2'
 }
 
 repositories {
@@ -42,4 +43,25 @@ dependencyManagement {
 
 test{
 	useJUnitPlatform()
-}
+}
+
+java {
+	toolchain {
+		languageVersion = JavaLanguageVersion.of(17)
+	}
+}
+
+graalvmNative {
+	binaries {
+        main {
+            imageName.set('ModeratorElection')
+			javaLauncher.set(javaToolchains.launcherFor {
+        		languageVersion.set(JavaLanguageVersion.of(17))
+        		//vendor.set(JvmVendorSpec.GRAAL_VM)
+			})
+        }
+    }
+    testSupport = false
+	toolchainDetection = false
+}
+

build.py

@@ -0,0 +1,55 @@
+from os import environ
+from datetime import datetime
+from pybuilder.core import task, init
+from ddadevops import *
+
+name = 'moderator-election'
+MODULE = ''
+PROJECT_ROOT_PATH = '../..'
+version = "1.0.0-dev"
+
+@init
+def initialize(project):
+    image_tag = version
+    if "dev" in image_tag:
+        image_tag += datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+
+    input = {
+        "name": name,
+        "module": "notused",
+        "stage": "notused",
+        "project_root_path": PROJECT_ROOT_PATH,
+        "build_types": ["IMAGE"],
+        "mixin_types": [],
+        "image_naming": "NAME_AND_MODULE",
+        "image_tag": f"{image_tag}",
+    }
+
+    project.build_depends_on("ddadevops>=4.7.0")
+
+    build = DevopsImageBuild(project, input)
+    build.initialize_build_dir()
+
+
+@task
+def image(project):
+    build = get_devops_build(project)
+    build.image()
+
+@task
+def drun(project):
+    build = get_devops_build(project)
+    build.drun()
+
+
+@task
+def test(project):
+    build = get_devops_build(project)
+    build.test()
+
+
+@task
+def publish(project):
+    build = get_devops_build(project)
+    build.dockerhub_login()
+    build.dockerhub_publish()

doc/dev_notes.md

@@ -0,0 +1,36 @@
+### ToDo  
+
+```
+HowTo BUILD jar?
+
+Failed within local: ./gradle build
+java -jar build/libs/ModeratorElection.jar -> localhost:6333 "White Label..."-Error
+
+=> ./gradlew clean build -Pvaadin.productionMode
+..in ide dev: ./gradlew clean vaadinPrepareFrontend
+```
+
+```
+For production:
+* install.sh 
+    git clone --single-branch --branch MEapp-development https://repo.prod.meissa.de/meissa/ModeratorElection.git /usr/local/src/ModeratorElection
+    => --branch main
+
+     
+```
+
+```
+build graalvm binary
+./gradlew nativeCompile failed, need for some improvements!
+```
+
+```  
+after npm audit fix during image build   
+npm warn deprecated workbox-google-analytics@7.0.0: It is not compatible with newer versions of GA starting with v4, as long as you are using GAv3 it should be ok, but the package is not longer being maintained  
+npm warn deprecated sourcemap-codec@1.4.8: Please use @jridgewell/sourcemap-codec instead  
+npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.  
+npm warn deprecated rollup-plugin-terser@7.0.2: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-terser  
+npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
+```
+
+

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

image/Dockerfile

@@ -0,0 +1,6 @@
+#Build Stage
+FROM node:22.3.0-bookworm-slim
+
+ADD resources /tmp
+RUN /tmp/install.sh
+

image/resources/MEMBERNAMES

@@ -0,0 +1 @@
+Silke,Hans,Dieter,Anne

image/resources/install.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+set -exo pipefail
+
+function main()
+{
+    upgradeSystem
+    #openjdk-17-jdk-headless, no need, we are installing graalvm
+    apt-get -qqy install git curl unzip
+    mkdir /usr/local/src/ModeratorElection
+    #change to main branch for production
+    git clone --single-branch --branch MEapp-development https://repo.prod.meissa.de/meissa/ModeratorElection.git /usr/local/src/ModeratorElection
+    cp /tmp/MEMBERNAMES /usr/local/src/ModeratorElection
+
+    #download gradle
+    #gradle_version="8.4"
+    #curl -SsLo /tmp/gradle-${gradle_version}-bin.zip https://services.gradle.org/distributions/gradle-${gradle_version}-bin.zip
+    #curl -SsLo /tmp/gradle-${gradle_version}-bin.zip.sha256 https://services.gradle.org/distributions/gradle-${gradle_version}-bin.zip.sha256
+
+    #download graalvm
+    #oracle graalvm-jdk, v17.0.11, 2024-06-14
+    graalvm_JDK_version="17"
+    curl -SsLo /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz https://download.oracle.com/graalvm/${graalvm_JDK_version}/latest/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz
+    curl -SsLo /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz.sha256 https://download.oracle.com/graalvm/${graalvm_JDK_version}/latest/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz.sha256
+
+    #graalvm-community-jdk, v17.0.8, 2023-07-25
+    #graalvm_jdk_version="17.0.8"
+    #curl -SsLo /tmp/graalvm-community-jdk.tar.gz https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-${graalvm_jdk_version}/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz
+    #curl -SsLo /tmp/graalvm-checksum https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-${graalvm_jdk_version}/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
+
+    #checksum gradle, graalvm
+    checksum
+
+    #install gradle
+    #mkdir /opt/gradle
+    #unzip -qqd /opt/gradle /tmp/gradle-${gradle_version}-bin.zip
+    #export PATH=$PATH:/opt/gradle/gradle-${gradle_version}/bin
+
+    #install graalvm -- ToDo: need to be checked, graalvm after installing available as default-jvm?
+    tar -C /usr/lib/jvm/ -xzf graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz
+    dirname_graalvm=$(ls /usr/lib/jvm/|grep -e graa)
+    ln -s /usr/lib/jvm/$dirname_graalvm /usr/lib/jvm/graalvm
+    ln -s /usr/lib/jvm/graalvm/bin/gu /usr/local/bin
+    update-alternatives --install /usr/bin/java java /usr/lib/jvm/graalvm/bin/java 2
+
+
+
+    #ToDo install by graalvm, put graalvm binary here
+    #install -m 0700 /tmp/entrypoint-start-and-wait.sh /
+
+    #install -m 0700 /tmp/init.sh /usr/local/bin/
+    #install -m 0700 /tmp/backup.sh /usr/local/bin/
+    #install -m 0700 /tmp/restore.sh /usr/local/bin/
+    #install -m 0700 /tmp/restic-snapshots.sh /usr/local/bin/
+
+    #cleanupDocker
+} #> /dev/null
+
+function checksum() {
+    #gradle
+    #echo "  /tmp/gradle-${gradle_version}-bin.zip"|tee -a /tmp/gradle-${gradle_version}-bin.zip.sha256
+    #sha256sum -c --status /tmp/gradle-${gradle_version}-bin.zip.sha256
+
+    #graalvm
+    echo "  /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz"|tee -a /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz.sha256
+    sha256sum -c --status graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz.sha256
+}
+
+source /tmp/install_functions_debian.sh
+DEBIAN_FRONTEND=noninteractive DEBCONF_NOWARNINGS=yes main
+
+#cd /usr/local/src/ModeratorElection
+#npm install -g npm@latest
+#npm audit fix
+#npm ci --omit=dev
+#./gradlew build

src/main/java/com/ModeratorElection/MainView.java

@@ -38,8 +38,9 @@ public class MainView extends VerticalLayout {
 
         Button electNow = new Button("Elect!", buttonClickEvent ->  {
             try {
+                ArrayList checkboxSelectedMembers = new ArrayList(checkboxGroup.getSelectedItems());
                 Notification moderatorNotification = new Notification()
-                        .show("Nächster Moderator: " + electMember(selectMemberItemsNameslist));
+                        .show("Nächster Moderator: " + electMember(checkboxSelectedMembers));
                 moderatorNotification.setPosition(Notification.Position.BOTTOM_CENTER);
             } catch(Exception exceptionEvent) {
                 Notification errorNotification = new Notification();
@@ -50,9 +51,7 @@ public class MainView extends VerticalLayout {
                 Button closeButton = new Button(new Icon("lumo", "cross"));
                 closeButton.addThemeVariants(ButtonVariant.LUMO_TERTIARY_INLINE);
                 closeButton.setAriaLabel("Close");
-                closeButton.addClickListener(closeButtonEvent -> {
+                closeButton.addClickListener(closeButtonEvent -> errorNotification.close());
-                    errorNotification.close();
-                });
 
                 HorizontalLayout layout = new HorizontalLayout(text, closeButton);
                 layout.setAlignItems(Alignment.CENTER);