save the old appsettings.json

Jenkinsfile

@@ -79,7 +79,9 @@ pipeline {
                 withCredentials([sshUserPrivateKey(credentialsId: env.linuxServiceAccountID, keyFileVariable: 'PK')])
                 {
                     sh """#!/bin/bash
+                        ssh -i \"$${PK}\" -tt $${linuxServiceAccount_USR}@$${targetHost} 'mv dist/appsettings.json appsettings.json'
                         ssh -i \"$${PK}\" -tt $${linuxServiceAccount_USR}@$${targetHost} 'rm -rf dist/ && mv temp_deploy/ dist/'
+                        ssh -i \"$${PK}\" -tt $${linuxServiceAccount_USR}@$${targetHost} 'mv appsettings.json dist/appsettings.json'
                     """
                 }
             }