* Initial commit

.dockerignore

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+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
+
+### Maven ###
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+target

.github/workflows/maven.yml

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+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Maven
+
+on:
+  push:
+    branches: [ "develop" ]
+  pull_request:
+    branches: [ "develop" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          cache: maven
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+
+      # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
+      - name: Submit Dependency Snapshot
+        uses: advanced-security/maven-dependency-submission-action@v3

.gitignore

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+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
+
+### Maven ###
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+target

.java-version

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+21

Dockerfile

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+FROM eclipse-temurin:21 AS app-builder
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN mkdir -p /opt/build
+WORKDIR /opt/build
+
+RUN apt update && \
+    apt install -y maven && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+FROM app-builder AS app-build
+
+COPY tftp/pom.xml tftp/
+COPY common/pom.xml common/
+COPY lib/pom.xml lib/
+COPY client/pom.xml client/
+COPY vclu/pom.xml vclu/
+COPY pom.xml .
+
+COPY vclu/assembly/jar-with-dependencies.xml vclu/assembly/
+
+# https://issues.apache.org/jira/browse/MDEP-689
+#RUN mvn dependency:go-offline
+RUN mvn install
+
+COPY tftp tftp
+COPY common common
+COPY lib lib
+COPY client client
+COPY vclu vclu
+
+RUN mvn package
+
+FROM eclipse-temurin:21 AS jre-build
+
+RUN mkdir -p /opt/build
+WORKDIR /opt/build
+
+#COPY --from=app-build /opt/build/vclu/target/vclu.jar .
+
+RUN $JAVA_HOME/bin/jlink \
+         --add-modules java.base,java.xml,java.naming,java.management,jdk.zipfs \
+#         --add-modules $(jdeps --ignore-missing-deps --print-module-deps vclu.jar),java.base,java.xml,java.naming,java.management,java.sql,java.instrument,jdk.zipfs,jdk.unsupported \
+         --strip-debug \
+         --no-man-pages \
+         --no-header-files \
+         --compress=2 \
+         --output /opt/build/jre
+
+FROM debian:buster-slim AS app-runtime
+
+ENV JAVA_HOME=/opt/java/openjdk
+ENV PATH "${JAVA_HOME}/bin:${PATH}"
+
+RUN mkdir -p /opt/docker
+WORKDIR /opt/docker
+
+COPY --from=jre-build /opt/build/jre $JAVA_HOME
+COPY --from=app-build /opt/build/vclu/target/vclu.jar /opt/docker
+COPY runtime .
+
+ENTRYPOINT [ \
+  "java", \
+  "-XX:+DisableAttachMechanism", \
+  "-server", "-Xshare:off", "-XX:+UseContainerSupport", "-XX:+UseZGC", "-XX:+UseDynamicNumberOfGCThreads", \
+  "-XX:+ExitOnOutOfMemoryError", \
+  "-Djava.net.preferIPv6Addresses=false", \
+#  "-Djava.net.preferIPv4Stack=true", \
+  "-Djava.awt.headless=true", "-Dfile.encoding=UTF-8", \
+  "-jar", "vclu.jar" \
+]