[Build] Simplify and clean-up Docker image build

- Don't send mails on success only on failure and only to the
mailing-list and not specific people
- Delete complete workspace content after the build
- Update to jdt.core git repository at Github
- Inline bash-scripts to build and push docker-images
  - Just delete thos scripts that are not used
  - Remove push of images that are not built (anymore)

JenkinsJobs/Builds/DockerImagesBuild.groovy

@@ -32,54 +32,69 @@ pipeline {
     stages {
         stage('Clean workspace') {
             steps {
-                sh \'''#!/bin/bash -x
-                docker images
-                docker system prune -a -f
-                cd ${WORKSPACE}
-                rm -rf *
-                \'''
+                cleanWs()
             }
         }
         stage('Get Docker Files') {
             steps {
                 sh \'''
                     git clone -b master https://github.com/eclipse-platform/eclipse.platform.releng.aggregator.git
-                    git clone -b master https://git.eclipse.org/r/jdt/eclipse.jdt.core.git
+                    git clone -b master https://github.com/eclipse-jdt/eclipse.jdt.core
                 \'''
             }
         }
         stage('Build Docker Images') {
             steps {
-                sh \'''#!/bin/bash -x
-                cd ${WORKSPACE}/eclipse.platform.releng.aggregator/cje-production/dockerfiles/
-                chmod +x *.sh
-                (./build-centos_9.sh|tee centos9.log)&
-                (./build-centos_9_swt_build.sh|tee swt_9_build.log)&
-                (./build-ubuntu-22.04.sh|tee ubuntu22.log)&
-                (./build-openSuse-15.sh|tee opensuse_leap.log)&
-                cd ${WORKSPACE}/eclipse.jdt.core/org.eclipse.jdt.core/docker/
-                chmod +x *.sh
-                (./build-ubuntu-jikespg.sh|tee ubuntuJikespg.log)&
-                wait
-                docker images
-                \'''
+                dir('eclipse.platform.releng.aggregator/cje-production/dockerfiles') {
+                    sh \'''
+                        (cd centos-gtk4-mutter/9-gtk4 && \
+                         echo "Building Centos 9 docker image" && \
+                         docker build --pull -t eclipse/platformreleng-centos-gtk4-mutter:9 . \
+                         |tee centos9.log)&
+                        (cd centos-gtk4-mutter/9-swtBuild && \
+                         echo "Building Centos 9 swt build image" && \
+                         docker build --pull -t eclipse/platformreleng-centos-swt-build:9 . \
+                         |tee swt_9_build.log)&
+                        (cd ubuntu-gtk3-metacity/22.04-gtk3 && \
+                         echo "Building Ubuntu 22.04 docker image" && \
+                         docker build --pull -t eclipse/platformreleng-ubuntu-gtk3-metacity:22.04 . \
+                         |tee ubuntu22.log)&
+                        (cd opensuse-gtk3-metacity/15-gtk3 && \
+                         echo "Building Opensuse Leap 15 docker image" && \
+                         docker build --pull -t eclipse/platformreleng-opensuse-gtk3-metacity:15 . \
+                         |tee opensuse_leap.log)&
+                        wait
+                    \'''
+                }
+                dir('eclipse.jdt.core/org.eclipse.jdt.core/docker') {
+                    sh \'''
+                        chmod +x *.sh
+                        (./build-ubuntu-jikespg.sh|tee ubuntuJikespg.log)&
+                        wait
+                    \'''
+                }
+                sh 'docker images'
             }
         }
         stage('Push docker image') {
             steps {
                 withDockerRegistry([credentialsId: 'docker.com-bot', url: '']) {
-                    sh \'''#!/bin/bash -x
-                    cd ${WORKSPACE}/eclipse.platform.releng.aggregator/cje-production/dockerfiles/
-                    chmod +x *.sh
-                    (./push-centos_9.sh|tee push-centos9.log)&
-                    (./push-centos9_swt_build.sh|tee push-swt_9_build.log)&
-                    (./push-ubuntu-22.04.sh|tee push-ubuntu22.log)&
-                    (./push-opensuse-15.sh|tee push-opensuse_leap.log)&
-                    cd ${WORKSPACE}/eclipse.jdt.core/org.eclipse.jdt.core/docker/
-                    chmod +x *.sh
-                    (./push-ubuntu-jikespg.sh|tee push-ubuntuJikespg.log)&
-                    wait
-                    \'''
+                    dir('eclipse.platform.releng.aggregator/cje-production/dockerfiles') {
+                        sh \'''
+                            (docker push eclipse/platformreleng-centos-gtk4-mutter:9|tee centos9.log)&
+                            (docker push eclipse/platformreleng-centos-swt-build:9|tee push-swt_9_build.log)&
+                            (docker push eclipse/platformreleng-opensuse-gtk3-metacity:15|tee push-ubuntu22.log)&
+                            (docker push eclipse/platformreleng-ubuntu-gtk3-metacity:22.04|tee push-opensuse_leap.log)&
+                            wait
+                        \'''
+                    }
+                    dir('eclipse.jdt.core/org.eclipse.jdt.core/docker') {
+                        sh \'''
+                            chmod +x *.sh
+                            (./push-ubuntu-jikespg.sh|tee push-ubuntuJikespg.log)&
+                            wait
+                        \'''
+                    }
                 }
             }
         }
@@ -94,22 +109,15 @@ pipeline {
         }
     }
     post {
-        success {
-            emailext body: "Container images used for testing eclipse platform - Build Successful. Please go to ${BUILD_URL}console and check the log",
-            subject: "Container images - Build Successful", 
-            to: "[email protected] [email protected] [email protected] [email protected] [email protected]",
-            from:"[email protected]"
-        }
-        
         unsuccessful {
             emailext body: "Container images used for testing eclipse platform - Build Unsuccessful. Please go to ${BUILD_URL}console and check the log",
             subject: "Container images - Build Unsuccessful", 
-            to: "[email protected] [email protected] [email protected] [email protected] [email protected]",
+            to: "[email protected]",
             from:"[email protected]"
         }
-        
         always {
             archiveArtifacts '**/*.log'
+            cleanWs()
         }
     }
 }