diff --git a/demo1-getting-started.py b/demo1-getting-started.py
index 7cd4647..1a872c6 100644
--- a/demo1-getting-started.py
+++ b/demo1-getting-started.py
@@ -42,8 +42,8 @@ domain_name = "default"
 
 def main():
     # get the password from user
-    auth_password = getpass.getpass("Enter your OpenStack password:")
-    # auth_password = "demo"
+    # auth_password = getpass.getpass("Enter your OpenStack password:")
+    auth_password = "demo"
 
     # instantiate a connection to the OpenStack private cloud
     # make sure to include ex_domain_name and ex_force_auth_version='3.x_password', as they are needed in our
diff --git a/demo3-microservice.py b/demo3-microservice.py
index 34f9909..68b4300 100644
--- a/demo3-microservice.py
+++ b/demo3-microservice.py
@@ -238,6 +238,7 @@ def main():
     instance_worker_1 = conn.create_node(name='app-worker-1',
                                          image=image,
                                          size=flavor,
+                                         networks=[network],
                                          ex_keyname=keypair_name,
                                          ex_userdata=userdata,
                                          ex_security_groups=[worker_security_group])
diff --git a/demo4-scale-out-add-worker.py b/demo4-scale-out-add-worker.py
index 5f672af..95af385 100644
--- a/demo4-scale-out-add-worker.py
+++ b/demo4-scale-out-add-worker.py
@@ -101,7 +101,7 @@ def main():
 
     ###########################################################################
     #
-    # get fixed a ip for serivice and api instance
+    # get fixed a ip for service and api instance
     # (better would be shared IP for the cluster etc.) 
     #
     ###########################################################################
diff --git a/demo4-scale-out-destroy.py b/destroy-all-demo-instances.py
similarity index 100%
rename from demo4-scale-out-destroy.py
rename to destroy-all-demo-instances.py