moved start of worker-3, changed var names to reflect their usage

demo4-scale-out-add-worker.py

+# import getpass
+# import os
+# import libcloud.security
+
+import time
+from libcloud.compute.providers import get_driver
+from libcloud.compute.types import Provider
+
+# reqs:
+#   services: nova, glance, neutron
+#   resources: 2 instances (m1.small), 2 floating ips (1 keypair, 2 security groups)
+
+# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions
+
+# web service endpoint of the private cloud infrastructure
+auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
+# your username in OpenStack
+auth_username = 'CloudCompX'
+# your project in OpenStack
+project_name = 'CloudCompGrpX'
+
+# default region
+region_name = 'RegionOne'
+# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
+domain_name = "default"
+
+ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+
+flavor_name = 'm1.small'
+
+network_name = "CloudCompGrpX-net"
+
+keypair_name = 'srieger-pub'
+pub_key_file = '~/.ssh/id_rsa.pub'
+
+api_1_ip  = "192.168.0.x"
+services_ip = "192.168.0.y"
+
+
+def main():
+    ###########################################################################
+    #
+    # get credentials
+    #
+    ###########################################################################
+
+    # if "OS_PASSWORD" in os.environ:
+    #     auth_password = os.environ["OS_PASSWORD"]
+    # else:
+    #     auth_password = getpass.getpass("Enter your OpenStack password:")
+    auth_password = "demo"
+
+    ###########################################################################
+    #
+    # create connection
+    #
+    ###########################################################################
+
+    # libcloud.security.VERIFY_SSL_CERT = False
+
+    provider = get_driver(Provider.OPENSTACK)
+    conn = provider(auth_username,
+                    auth_password,
+                    ex_force_auth_url=auth_url,
+                    ex_force_auth_version='3.x_password',
+                    ex_tenant_name=project_name,
+                    ex_force_service_region=region_name,
+                    ex_domain_name=domain_name)
+
+    ###########################################################################
+    #
+    # create worker instances
+    #
+    ###########################################################################
+
+    userdata_worker = '''#!/usr/bin/env bash
+    curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
+        -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/'
+    ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
+
+    # userdata-api-2 = '''#!/usr/bin/env bash
+    # curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
+    #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/'
+    # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
+
+    print('Starting new app-worker-3 instance and wait until it is running...')
+    instance_worker_3 = conn.create_node(name='app-worker-3',
+                                         image=image, size=flavor,
+                                         networks=[network],
+                                         ex_keyname=keypair_name,
+                                         ex_userdata=userdata_worker,
+                                         ex_security_groups=[worker_security_group])
+
+if __name__ == '__main__':
+    main()

demo4-scale-out-destroy.py

@@ -25,6 +25,7 @@ region_name = 'RegionOne'
 domain_name = "default"
 
 ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
 
 flavor_name = 'm1.small'
 
@@ -85,7 +86,8 @@ def main():
         instances = conn.list_nodes()
         for instance in instances:
             # if we see any demo instances still running continue to wait for them to stop
-            if instance.name in ['all-in-one', 'app-worker-1', 'app-worker-2', 'app-controller']:
+            if instance.name in ['all-in-one', 'app-worker-1', 'app-worker-2', 'app-worker-3', 'app-controller',
+                                 'app-services', 'app-api-1', 'app-api-2']:
                 nodes_still_running = True
         print('There are still instances running, waiting for them to be destroyed...')
 

demo4-scale-out.py

@@ -25,6 +25,7 @@ region_name = 'RegionOne'
 domain_name = "default"
 
 ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
+#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
 
 flavor_name = 'm1.small'
 
@@ -220,7 +221,7 @@ def main():
     #
     # Thanks to Stefan Friedmann for finding this fix ;)
 
-    userdata = '''#!/usr/bin/env bash
+    userdata_service = '''#!/usr/bin/env bash
     curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
         -i database -i messaging
     rabbitmqctl add_user faafo guest
@@ -234,7 +235,7 @@ def main():
                                          size=flavor,
                                          networks=[network],
                                          ex_keyname=keypair_name,
-                                         ex_userdata=userdata,
+                                         ex_userdata=userdata_service,
                                          ex_security_groups=[services_security_group])
     instance_services = conn.wait_until_running(nodes=[instance_services], timeout=120,
                                                 ssh_interface='private_ips')[0][0]
@@ -246,7 +247,7 @@ def main():
     #
     ###########################################################################
 
-    userdata = '''#!/usr/bin/env bash
+    userdata_api = '''#!/usr/bin/env bash
     curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
         -i faafo -r api -m 'amqp://guest:guest@%(services_ip)s:5672/' \
         -d 'mysql+pymysql://faafo:password@%(services_ip)s:3306/faafo'
@@ -258,7 +259,7 @@ def main():
                                       size=flavor,
                                       networks=[network],
                                       ex_keyname=keypair_name,
-                                      ex_userdata=userdata,
+                                      ex_userdata=userdata_api,
                                       ex_security_groups=[api_security_group])
 
     print('Starting new app-api-2 instance and wait until it is running...')
@@ -267,7 +268,7 @@ def main():
                                       size=flavor,
                                       networks=[network],
                                       ex_keyname=keypair_name,
-                                      ex_userdata=userdata,
+                                      ex_userdata=userdata_api,
                                       ex_security_groups=[api_security_group])
 
     instance_api_1 = conn.wait_until_running(nodes=[instance_api_1], timeout=120,
@@ -288,12 +289,12 @@ def main():
     #
     ###########################################################################
 
-    userdata_api_1 = '''#!/usr/bin/env bash
+    userdata_worker = '''#!/usr/bin/env bash
     curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
         -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/'
     ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
 
-    # userdata-api-2 = '''#!/usr/bin/env bash
+    # userdata_api-api-2 = '''#!/usr/bin/env bash
     # curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
     #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/'
     # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
@@ -303,28 +304,30 @@ def main():
                                          image=image, size=flavor,
                                          networks=[network],
                                          ex_keyname=keypair_name,
-                                         ex_userdata=userdata_api_1,
+                                         ex_userdata=userdata_worker,
                                          ex_security_groups=[worker_security_group])
 
-    print('Starting new app-worker-1 instance and wait until it is running...')
+    print('Starting new app-worker-2 instance and wait until it is running...')
     instance_worker_2 = conn.create_node(name='app-worker-2',
                                          image=image, size=flavor,
                                          networks=[network],
                                          ex_keyname=keypair_name,
-                                         ex_userdata=userdata_api_1,
+                                         ex_userdata=userdata_worker,
                                          ex_security_groups=[worker_security_group])
 
-    print('Starting new app-worker-1 instance and wait until it is running...')
-    instance_worker_3 = conn.create_node(name='app-worker-3',
-                                         image=image, size=flavor,
-                                         networks=[network],
-                                         ex_keyname=keypair_name,
-                                         ex_userdata=userdata_api_1,
-                                         ex_security_groups=[worker_security_group])
+    # do not start worker 3 initially, can be started using scale-out-add-worker.py demo
+    
+    #print('Starting new app-worker-3 instance and wait until it is running...')
+    #instance_worker_3 = conn.create_node(name='app-worker-3',
+    #                                     image=image, size=flavor,
+    #                                     networks=[network],
+    #                                     ex_keyname=keypair_name,
+    #                                     ex_userdata=userdata_worker,
+    #                                     ex_security_groups=[worker_security_group])
 
     print(instance_worker_1)
     print(instance_worker_2)
-    print(instance_worker_3)
+    #print(instance_worker_3)
 
 
 if __name__ == '__main__':