OZG-2387 use latest helmchart version

Jenkinsfile

@@ -137,6 +137,10 @@ pipeline {
                         sh 'cp ${KUBE_CONFIG} ~/.kube/config'
                     }
 
+                    withCredentials([usernamePassword(credentialsId: 'jenkins-nexus-login', usernameVariable: 'USER', passwordVariable: 'PASSWORD')]) {
+                        sh 'helm repo add ozg-base-apps-snapshot https://nexus.ozg-sh.de/repository/ozg-base-apps-snapshot --username ${USER} --password ${PASSWORD}'
+                    }
+
                     sh 'helm version'
                 }
             }
@@ -337,9 +341,7 @@ Void checkIfNamespaceExists(String namespace) {
 Void startPluto(String namespace, String values, String bezeichner) {
     container("k8s") {
         dir('goofy-client/apps/goofy-e2e/deployment-values/pluto') {
-        	withCredentials([usernamePassword(credentialsId: 'jenkins-nexus-login', usernameVariable: 'USER', passwordVariable: 'PASSWORD')]) {
-            	sh "helm upgrade --install --create-namespace pluto pluto -f ${values} --set kop.bezeichner=${bezeichner} --namespace ${namespace} --version 0.12.0-SNAPSHOT" + ' --repo https://nexus.ozg-sh.de/repository/ozg-base-apps-snapshot --username ${USER} --password ${PASSWORD} --wait --wait-for-jobs'
-            }
+           	sh "helm upgrade --install --create-namespace pluto ozg-base-apps-snapshot/pluto -f ${values} --set kop.bezeichner=${bezeichner} --namespace ${namespace} --version ${getLatestChartVersion('pluto').trim()} --wait --wait-for-jobs"
         }
 
 	    sh "kubectl rollout status statefulset/pluto-database -n ${namespace}"
@@ -349,9 +351,7 @@ Void startPluto(String namespace, String values, String bezeichner) {
 Void startGoofy(String namespace, String values, String imageTag, String bezeichner) {
     container("k8s") {
         dir('goofy-client/apps/goofy-e2e/deployment-values/goofy') {
-        	withCredentials([usernamePassword(credentialsId: 'jenkins-nexus-login', usernameVariable: 'USER', passwordVariable: 'PASSWORD')]) {
-            	sh "helm upgrade --install --create-namespace goofy goofy -f ${values} --set image.tag=${imageTag} --set kop.bezeichner=${bezeichner} --namespace ${namespace} --version 0.14.0-SNAPSHOT" + ' --repo https://nexus.ozg-sh.de/repository/ozg-base-apps-snapshot --username ${USER} --password ${PASSWORD} --wait --wait-for-jobs'
-            }
+           	sh "helm upgrade --install --create-namespace goofy ozg-base-apps-snapshot/goofy -f ${values} --set image.tag=${imageTag} --set kop.bezeichner=${bezeichner} --namespace ${namespace} --version ${getLatestChartVersion('goofy').trim()} --wait --wait-for-jobs"
         }
 
         createKeycloakGroups(namespace)
@@ -360,6 +360,12 @@ Void startGoofy(String namespace, String values, String imageTag, String bezeich
     }
 }
 
+String getLatestChartVersion(String chart) {
+    container("k8s") {
+        return sh (script: "helm search repo ozg-base-apps-snapshot --devel -l -o json | jq -r 'first(.[] | select((.name==\"ozg-base-apps-snapshot/${chart}\") and (.version|match(\"SNAPSHOT\$\"))) | .version)'", returnStdout: true)
+    }
+}
+
 String runTests(String stageName, String reportFolder) {
 	container("cypress") {
         try {