add helm stable repo

Former-commit-id: edfdbd7d2d671a40bf25eb0ea077fe23c497a611

ci/jenkinsfile/deploy2dev.groovy

 try {
-    sh 'helm init --client-only --skip-refresh'
+    sh 'helm init --client-only --skip-refresh --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts'
     sh 'helm repo add milvus https://registry.zilliz.com/chartrepo/milvus'
     sh 'helm repo update'
     sh "helm install --set engine.image.repository=registry.zilliz.com/${PROJECT_NAME}/engine --set engine.image.tag=${DOCKER_VERSION} --set expose.type=clusterIP --name ${env.JOB_NAME}-${env.BUILD_NUMBER} --version 0.3.0 milvus/milvus-gpu"

ci/jenkinsfile/milvus_build.groovy

@@ -5,6 +5,8 @@ container('milvus-build-env') {
                 try {
                     checkout([$class: 'GitSCM', branches: [[name: "${SEMVER}"]], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'SubmoduleOption',disableSubmodules: false,parentCredentials: true,recursiveSubmodules: true,reference: '',trackingSubmodules: false]], submoduleCfg: [], userRemoteConfigs: [[credentialsId: "${params.GIT_USER}", url: "git@192.168.1.105:megasearch/milvus.git"]]])
                     dir ("cpp") {
+                        sh "git config --global user.email \"test@zilliz.com\""
+                        sh "git config --global user.name \"test\""
                         sh "./build.sh -t ${params.BUILD_TYPE} -u -c"
                     }
                 } catch (exc) {

ci/jenkinsfile/notify.groovy

+def notify() {
+    if (!currentBuild.resultIsBetterOrEqualTo('SUCCESS')) {
+        // Send an email only if the build status has changed from green/unstable to red
+        emailext subject: '$DEFAULT_SUBJECT',
+        body: '$DEFAULT_CONTENT',
+        recipientProviders: [
+            [$class: 'DevelopersRecipientProvider'],
+            [$class: 'RequesterRecipientProvider']
+        ], 
+        replyTo: '$DEFAULT_REPLYTO',
+        to: '$DEFAULT_RECIPIENTS'
+    }
+}
+return this
+

ci/main_jenkinsfile

@@ -232,6 +232,22 @@ spec:
     }
 
     post {
+        always {
+            script {
+                if (!currentBuild.resultIsBetterOrEqualTo('SUCCESS')) {
+                    // Send an email only if the build status has changed from green/unstable to red
+                    emailext subject: '$DEFAULT_SUBJECT',
+                    body: '$DEFAULT_CONTENT',
+                    recipientProviders: [
+                        [$class: 'DevelopersRecipientProvider'],
+                        [$class: 'RequesterRecipientProvider']
+                    ],
+                    replyTo: '$DEFAULT_REPLYTO',
+                    to: '$DEFAULT_RECIPIENTS'
+                }
+            }
+        }
+
         success {
             script {
                 updateGitlabCommitStatus name: 'CI/CD', state: 'success'