add email

prodK8s.Jenkinsfile

@@ -94,4 +94,13 @@ pipeline {
       }
     }
   }
+  post {
+    failure {
+      mail charset: 'UTF-8',
+           subject: "Jenkins build ERROR",
+           mimeType: 'text/html',
+           to: "${mailto}",
+           body: "<b>ATTENTION!!!</b> <b><br> Jenkins job failed.\n\n <b><br>Project Name:</b> ${env.JOB_NAME} <b><br>\nBuild Number:</b> ${env.BUILD_NUMBER} <b><br>\nURL Build:</b> ${RUN_DISPLAY_URL}"
+    }
+  }
 }