[skip ci]Refactoring in Docker image building, see also section dockerizing in doc/dev_notes.md to handle one Dockerfile for different builds

image/Dockerfile

@@ -1,24 +1,39 @@
-#Build Stage
-#if npm is needed for development purposes, switch to node
-#FROM node:22-bookworm-slim as build-env
-FROM ubuntu:latest as build-env
+#buildJar-stage
+FROM openjdk:22-jdk-slim as build-jar-stage
+
+RUN \
+    --mount=type=cache,target=/var/cache/apt \
+    apt-get update && apt-get -qqy upgrade &&\
+    apt-get -qqy install git &&\
+    git clone --single-branch --branch main https://repo.prod.meissa.de/meissa/ModeratorElection.git /usr/local/src/ModeratorElection
+WORKDIR /usr/local/src/ModeratorElection/
+RUN ./gradlew build -Pvaadin.productionMode
+
+# Run jar stage
+FROM build-jar-stage AS run-jar-stage
+EXPOSE 8080
+WORKDIR /usr/local/src/ModeratorElection/build/libs/
+RUN chmod 0740 ./ModeratorElection.jar
+ENTRYPOINT ["java", "-jar", "./ModeratorElection.jar"]
+
+
+#build-native-stage
+FROM ubuntu:latest as build-native-stage
 
 ADD resources /tmp
-RUN /tmp/install.sh
+RUN \
+    --mount=type=cache,target=/var/cache/apt \
+    /tmp/install.sh
 ENV LANG=en_US.UTF-8 \
-    JAVA_HOME=/usr/lib/jvm/graalvm
+    JAVA_HOME=/usr/lib/jvm/graalvm/bin
 
-# Run stage
-FROM ubuntu:latest
-
-RUN apt-get update
-RUN apt-get -qqy upgrade
+# Run native binary stage
+FROM build-native-stage AS run-native-stage
 
 EXPOSE 8080
-CMD ["mkdir /usr/local/src/ModeratorElection"]
-WORKDIR /usr/local/src/ModeratorElection/
-
-#copy graalvm binary
-COPY --from=build-env /usr/local/src/ModeratorElection/build/native/nativeCompile/ /usr/local/src/ModeratorElection/
+#CMD ["mkdir /usr/local/src/ModeratorElection"]
+WORKDIR /usr/local/src/ModeratorElection/build/native/nativeCompile/
+##copy native binary
+#COPY --from=buildNative-stage /usr/local/src/ModeratorElection/build/native/nativeCompile/ .
 RUN chmod 0740 ./ModeratorElection
 ENTRYPOINT ["./ModeratorElection"]

image/resources/install.sh

@@ -4,10 +4,9 @@ set -exo pipefail
 
 function main()
 {
-    upgradeSystem
-    #unzpip only necessary for gradle installation within main()
+    #upgradeSystem
+    apt-get update && apt-get -qqy upgrade
     apt-get -qqy install curl git build-essential libz-dev zlib1g-dev
-    mkdir /usr/local/src/ModeratorElection
 
     #change to main branch for production
     #change to MEapp-development branch for development
@@ -21,8 +20,8 @@ function main()
     #download graalvm
     #graalvm-community-jdk, v22.0.1 2024-04-16
     graalvm_jdk_version="22.0.1"
-    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
+    curl -SsLo /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-22.0.1/graalvm-community-jdk-22.0.1_linux-x64_bin.tar.gz
+    curl -SsLo /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256 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 graalvm
     checksum
@@ -33,40 +32,45 @@ function main()
     #nativeCompile
     buildproc
 
-    cleanupDocker
+    #cleanupDocker
+    rm -f /root/.ssh/authorized_keys
+    rm -f /root/.ssh/authorized_keys2
+
+    apt-get clean
+    apt-get -qqy autoremove --purge
+    apt-get -qqy autoclean
+    rm -rf /var/lib/apt/lists/
+
+    rm -rf /tmp/*
+
+    find /var/cache -type f -exec rm -rf {} \;
+    find /var/log/ -name '*.log' -exec rm -f {} \;
 
 } > /dev/null
 
 function checksum() {
     #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 /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz.sha256
+    echo "  /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz"|tee -a /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
+    sha256sum -c --status /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
 }
 
 function graalvm_inst(){
-      mkdir /usr/lib/jvm/
-      tar -C /usr/lib/jvm/ -xzf /tmp/graalvm-jdk-${graalvm_JDK_version}_linux-x64_bin.tar.gz
-      dirname_graalvm=$(ls /usr/lib/jvm/|grep -e graa)
-      ln -s /usr/lib/jvm/$dirname_graalvm /usr/lib/jvm/graalvm
-      ln -s /usr/lib/jvm/graalvm/bin/gu /usr/local/bin
-      update-alternatives --install /usr/bin/java java /usr/lib/jvm/graalvm/bin/java 0
+    mkdir /usr/lib/jvm/
+    tar -C /usr/lib/jvm/ -xzf /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz
+    dirname_graalvm=$(ls /usr/lib/jvm/|grep -e graa)
+    mkdir /usr/lib/jvm/graalvm/
+    ln -s /usr/lib/jvm/$dirname_graalvm/bin/ /usr/lib/jvm/graalvm/
+    update-alternatives --install /usr/bin/java java /usr/lib/jvm/graalvm/bin/java 0
+    echo "export PATH=$PATH:/usr/lib/jvm/graalvm/bin"| tee -a ~/.bashrc
 }
 
 function buildproc() {
-  cd /usr/local/src/ModeratorElection/
-  #for dev
-  #npm install -g npm@latest
-  #npm audit fix
-  #npm ci --omit=dev
-
-  #build jar
-  #./gradlew clean build -Pvaadin.productionMode -x processTestAot
-  #cp -r doc/META-INF src/main/resources
-  #build graalvm binary
-  ./gradlew nativeCompile -Dvaadin.productionMode=true
+    cd /usr/local/src/ModeratorElection/
+    #build graalvm binary
+    ./gradlew nativeCompile -Dvaadin.productionMode=true -x processTestAot
 }
 
-source /tmp/install_functions_debian.sh
+#source /tmp/install_functions_debian.sh
 DEBIAN_FRONTEND=noninteractive DEBCONF_NOWARNINGS=yes main