jenkinsfile - watch screen test intern refinement on kill loop

api/Jenkinsfile.ble_test

@@ -82,18 +82,20 @@ pipeline {
             steps {
                sshagent([env.SSH_CREDENTIALS_ID]) {
                     sh """
-                    ssh -o StrictHostKeyChecking=no root@${params.host_ip} -o ServerAliveInterval=60 -o ServerAliveCountMax=120 << EOF
+                        ssh -o StrictHostKeyChecking=no root@${params.host_ip} \
+                            -o ServerAliveInterval=60 -o ServerAliveCountMax=120 \
+                            << 'EOF'
                             echo Running background termination loop I hope...
-                        (
+                            nohup sh -c '
                                 sleep 10
                                 while pgrep -f "tail.*ble_test_${env.TEST_HASH}" > /dev/null; do
                                     if ! screen -list | grep -q ble_test_${env.TEST_HASH}; then
                                         pkill -9 -f "tail.*ble_test_${env.TEST_HASH}"
                                     fi
-                                echo Hello from in the loop
                                     sleep 5
                                 done
-                        ) &                    
+                            ' &
+                            EOF
                     """
                 }
             }