diff --git a/demo1-getting-started.py b/demo1-getting-started.py
index 3030714..86d11f9 100644
--- a/demo1-getting-started.py
+++ b/demo1-getting-started.py
@@ -13,7 +13,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = X
 
 
 ########################################################################################################################
@@ -32,8 +32,8 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
 
 # default region
 region_name = 'RegionOne'
@@ -50,7 +50,7 @@ def main():
     # make sure to include ex_force_auth_version='3.x_password', as needed in our environment
     provider = get_driver(Provider.OPENSTACK)
 
-    print("Opening connection to %s as %s..." % (auth_url, auth_username))
+    print(("Opening connection to %s as %s..." % (auth_url, auth_username)))
 
     conn = provider(auth_username,
                     auth_password,
diff --git a/demo2-instance-with-init-script.py b/demo2-instance-with-init-script.py
index 3adb7eb..dc5130c 100644
--- a/demo2-instance-with-init-script.py
+++ b/demo2-instance-with-init-script.py
@@ -7,7 +7,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = X
 
 
 # web service endpoint of the private cloud infrastructure
@@ -20,15 +20,16 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
 # id_rsa.pub should look like this (standard sshd pubkey format):
 # ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
 
-keypair_name = 'srieger-pub'
+#keypair_name = 'CloudComp30-keypair'
+keypair_name = "srieger-pub"
 pub_key_file = '~/.ssh/id_rsa.pub'
 
 flavor_name = 'm1.small'
@@ -104,7 +105,7 @@ def main():
             keypair_exists = True
 
     if keypair_exists:
-        print('Keypair ' + keypair_name + ' already exists. Skipping import.')
+        print(('Keypair ' + keypair_name + ' already exists. Skipping import.'))
     else:
         print('adding keypair...')
         conn.import_key_pair_from_file(keypair_name, pub_key_file)
@@ -128,7 +129,7 @@ def main():
             security_group_exists = True
 
     if security_group_exists:
-        print('Security Group ' + all_in_one_security_group.name + ' already exists. Skipping creation.')
+        print(('Security Group ' + all_in_one_security_group.name + ' already exists. Skipping creation.'))
     else:
         all_in_one_security_group = conn.ex_create_security_group(security_group_name,
                                                                   'network access for all-in-one application.')
@@ -144,8 +145,12 @@ def main():
     #
     ###########################################################################
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -i messaging -r api -r worker -r demo
     '''
 
@@ -159,7 +164,7 @@ def main():
             instance_exists = True
 
     if instance_exists:
-        print('Instance ' + testing_instance.name + ' already exists. Skipping creation.')
+        print(('Instance ' + testing_instance.name + ' already exists. Skipping creation.'))
         exit()
     else:
         print('Starting new all-in-one instance and wait until it is running...')
@@ -181,12 +186,12 @@ def main():
     private_ip = None
     if len(testing_instance.private_ips):
         private_ip = testing_instance.private_ips[0]
-        print('Private IP found: {}'.format(private_ip))
+        print(('Private IP found: {}'.format(private_ip)))
 
     public_ip = None
     if len(testing_instance.public_ips):
         public_ip = testing_instance.public_ips[0]
-        print('Public IP found: {}'.format(public_ip))
+        print(('Public IP found: {}'.format(public_ip)))
 
     print('Checking for unused Floating IP...')
     unused_floating_ip = None
@@ -197,11 +202,11 @@ def main():
 
     if not unused_floating_ip and len(conn.ex_list_floating_ip_pools()):
         pool = conn.ex_list_floating_ip_pools()[0]
-        print('Allocating new Floating IP from pool: {}'.format(pool))
+        print(('Allocating new Floating IP from pool: {}'.format(pool)))
         unused_floating_ip = pool.create_floating_ip()
 
     if public_ip:
-        print('Instance ' + testing_instance.name + ' already has a public ip. Skipping attachment.')
+        print(('Instance ' + testing_instance.name + ' already has a public ip. Skipping attachment.'))
     elif unused_floating_ip:
         conn.ex_attach_floating_ip_to_node(testing_instance, unused_floating_ip)
 
@@ -214,7 +219,7 @@ def main():
         actual_ip_address = private_ip
 
     print('\n')
-    print('The Fractals app will be deployed to http://{}\n'.format(actual_ip_address))
+    print(('The Fractals app will be deployed to http://{}\n'.format(actual_ip_address)))
 
     print('You can use ssh to login to the instance using your private key. Default user name for official Ubuntu\n'
           'Cloud Images is: ubuntu, so you can use, e.g.: "ssh -i ~/.ssh/id_rsa ubuntu@<floating-ip>" if your private\n'
diff --git a/demo3-microservice.py b/demo3-microservice.py
index 4c1a5ad..f5e616a 100644
--- a/demo3-microservice.py
+++ b/demo3-microservice.py
@@ -11,7 +11,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = X
 
 
 # web service endpoint of the private cloud infrastructure
@@ -24,15 +24,16 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
 # id_rsa.pub should look like this (standard sshd pubkey format):
 # ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
 
-keypair_name = 'srieger-pub'
+#keypair_name = 'CloudComp30-keypair'
+keypair_name = "srieger-pub"
 pub_key_file = '~/.ssh/id_rsa.pub'
 
 flavor_name = 'm1.small'
@@ -109,7 +110,7 @@ def main():
             keypair_exists = True
 
     if keypair_exists:
-        print('Keypair ' + keypair_name + ' already exists. Skipping import.')
+        print(('Keypair ' + keypair_name + ' already exists. Skipping import.'))
     else:
         print('adding keypair...')
         conn.import_key_pair_from_file(keypair_name, pub_key_file)
@@ -133,7 +134,7 @@ def main():
             security_group_exists = True
 
     if security_group_exists:
-        print('Worker Security Group ' + worker_security_group.name + ' already exists. Skipping creation.')
+        print(('Worker Security Group ' + worker_security_group.name + ' already exists. Skipping creation.'))
     else:
         worker_security_group = conn.ex_create_security_group('worker', 'for services that run on a worker node')
         conn.ex_create_security_group_rule(worker_security_group, 'TCP', 22, 22)
@@ -148,7 +149,7 @@ def main():
             security_group_exists = True
 
     if security_group_exists:
-        print('Controller Security Group ' + controller_security_group.name + ' already exists. Skipping creation.')
+        print(('Controller Security Group ' + controller_security_group.name + ' already exists. Skipping creation.'))
     else:
         controller_security_group = conn.ex_create_security_group('control', 'for services that run on a control node')
         conn.ex_create_security_group_rule(controller_security_group, 'TCP', 22, 22)
@@ -165,14 +166,12 @@ def main():
     #
     ###########################################################################
 
-    # https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh
-    # is currently broken, hence the "rabbitctl" lines were added in the example
-    # below, see also https://bugs.launchpad.net/faafo/+bug/1679710
-    #
-    # Thanks to Stefan Friedmann for finding this fix ;)
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
 
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i messaging -i faafo -r api
     rabbitmqctl add_user faafo guest
     rabbitmqctl set_user_tags faafo administrator
@@ -205,11 +204,11 @@ def main():
 
     if not unused_floating_ip:
         pool = conn.ex_list_floating_ip_pools()[0]
-        print('Allocating new Floating IP from pool: {}'.format(pool))
+        print(('Allocating new Floating IP from pool: {}'.format(pool)))
         unused_floating_ip = pool.create_floating_ip()
 
     conn.ex_attach_floating_ip_to_node(instance_controller_1, unused_floating_ip)
-    print('Controller Application will be deployed to http://%s' % unused_floating_ip.ip_address)
+    print(('Controller Application will be deployed to http://%s' % unused_floating_ip.ip_address))
 
     ###########################################################################
     #
@@ -231,7 +230,7 @@ def main():
     ###########################################################################
 
     userdata = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(ip_controller)s' -m 'amqp://faafo:guest@%(ip_controller)s:5672/'
     ''' % {'ip_controller': ip_controller}
 
@@ -261,11 +260,11 @@ def main():
 
     if not unused_floating_ip:
         pool = conn.ex_list_floating_ip_pools()[0]
-        print('Allocating new Floating IP from pool: {}'.format(pool))
+        print(('Allocating new Floating IP from pool: {}'.format(pool)))
         unused_floating_ip = pool.create_floating_ip()
 
     conn.ex_attach_floating_ip_to_node(instance_worker_1, unused_floating_ip)
-    print('The worker will be available for SSH at %s' % unused_floating_ip.ip_address)
+    print(('The worker will be available for SSH at %s' % unused_floating_ip.ip_address))
 
     print('You can use ssh to login to the controller using your private key. After login, you can list available '
           'fractals using "faafo list". To request the generation of new fractals, you can use "faafo create". '
diff --git a/demo4-scale-out-add-worker.py b/demo4-scale-out-add-worker.py
index 14b40b1..6d3630c 100644
--- a/demo4-scale-out-add-worker.py
+++ b/demo4-scale-out-add-worker.py
@@ -13,7 +13,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = X
 
 
 # web service endpoint of the private cloud infrastructure
@@ -26,15 +26,16 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
 # id_rsa.pub should look like this (standard sshd pubkey format):
 # ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
 
-keypair_name = 'srieger-pub'
+#keypair_name = 'CloudComp30-keypair'
+keypair_name = "srieger-pub"
 pub_key_file = '~/.ssh/id_rsa.pub'
 
 flavor_name = 'm1.small'
@@ -111,10 +112,10 @@ def main():
     for instance in conn.list_nodes():
         if instance.name == 'app-services':
             services_ip = instance.private_ips[0]
-            print('Found app-services fixed IP to be: ', services_ip) 
+            print(('Found app-services fixed IP to be: ', services_ip)) 
         if instance.name == 'app-api-1':
             api_1_ip = instance.private_ips[0]
-            print('Found app-api-1 fixed IP to be: ', api_1_ip) 
+            print(('Found app-api-1 fixed IP to be: ', api_1_ip)) 
 
     ###########################################################################
     #
@@ -129,7 +130,7 @@ def main():
             keypair_exists = True
 
     if keypair_exists:
-        print('Keypair ' + keypair_name + ' already exists. Skipping import.')
+        print(('Keypair ' + keypair_name + ' already exists. Skipping import.'))
     else:
         print('adding keypair...')
         conn.import_key_pair_from_file(keypair_name, pub_key_file)
@@ -145,10 +146,10 @@ def main():
 
     def get_security_group(connection, security_group_name):
         """A helper function to check if security group already exists"""
-        print('Checking for existing ' + security_group_name + ' security group...')
+        print(('Checking for existing ' + security_group_name + ' security group...'))
         for security_grp in connection.ex_list_security_groups():
             if security_grp.name == security_group_name:
-                print('Security Group ' + security_group_name + ' already exists. Skipping creation.')
+                print(('Security Group ' + security_group_name + ' already exists. Skipping creation.'))
                 return security_grp
         return False
 
@@ -167,13 +168,17 @@ def main():
     #
     ###########################################################################
 
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
+
     userdata_worker = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://faafo: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://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    # curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
     #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
 
@@ -185,6 +190,7 @@ def main():
                                          ex_userdata=userdata_worker,
                                          ex_security_groups=[worker_security_group])
 
+    print(instance_worker_3)
 
 if __name__ == '__main__':
     main()
diff --git a/demo4-scale-out.py b/demo4-scale-out.py
index 86e1a24..4154226 100644
--- a/demo4-scale-out.py
+++ b/demo4-scale-out.py
@@ -13,7 +13,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = 2
 
 
 # web service endpoint of the private cloud infrastructure
@@ -26,15 +26,17 @@ project_name = 'CloudComp' + str(group_number)
 project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
-ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
+#ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
+
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
 # id_rsa.pub should look like this (standard sshd pubkey format):
 # ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
 
-keypair_name = 'srieger-pub'
+#keypair_name = 'CloudComp30-keypair'
+keypair_name = "srieger-pub"
 pub_key_file = '~/.ssh/id_rsa.pub'
 
 flavor_name = 'm1.small'
@@ -113,7 +115,7 @@ def main():
             keypair_exists = True
 
     if keypair_exists:
-        print('Keypair ' + keypair_name + ' already exists. Skipping import.')
+        print(('Keypair ' + keypair_name + ' already exists. Skipping import.'))
     else:
         print('adding keypair...')
         conn.import_key_pair_from_file(keypair_name, pub_key_file)
@@ -131,7 +133,7 @@ def main():
     for instance in conn.list_nodes():
         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']:
-            print('Destroying Instance: %s' % instance.name)
+            print(('Destroying Instance: %s' % instance.name))
             conn.destroy_node(instance)
 
     # wait until all nodes are destroyed to be able to remove depended security groups
@@ -149,7 +151,7 @@ def main():
     # delete security groups
     for group in conn.ex_list_security_groups():
         if group.name in ['control', 'worker', 'api', 'services']:
-            print('Deleting security group: %s' % group.name)
+            print(('Deleting security group: %s' % group.name))
             conn.ex_delete_security_group(group)
 
     ###########################################################################
@@ -160,10 +162,10 @@ def main():
 
     def get_security_group(connection, security_group_name):
         """A helper function to check if security group already exists"""
-        print('Checking for existing ' + security_group_name + ' security group...')
+        print(('Checking for existing ' + security_group_name + ' security group...'))
         for security_grp in connection.ex_list_security_groups():
             if security_grp.name == security_group_name:
-                print('Security Group ' + security_group_name + ' already exists. Skipping creation.')
+                print(('Security Group ' + security_group_name + ' already exists. Skipping creation.'))
                 return worker_security_group
         return False
 
@@ -226,14 +228,12 @@ def main():
     #
     ###########################################################################
 
-    # https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh
-    # is currently broken, hence the "rabbitctl" lines were added in the example
-    # below, see also https://bugs.launchpad.net/faafo/+bug/1679710
-    #
-    # Thanks to Stefan Friedmann for finding this fix ;)
+    #hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh'
+    # testing / faafo dev branch:
+    hsfd_faafo_cloud_init_script = 'https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/branch/dev_faafo/faafo/contrib/install.sh'
 
     userdata_service = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i database -i messaging
     rabbitmqctl add_user faafo guest
     rabbitmqctl set_user_tags faafo administrator
@@ -259,7 +259,7 @@ def main():
     ###########################################################################
 
     userdata_api = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r api -m 'amqp://faafo:guest@%(services_ip)s:5672/' \
         -d 'mysql+pymysql://faafo:password@%(services_ip)s:3306/faafo'
     ''' % {'services_ip': services_ip}
@@ -292,7 +292,7 @@ def main():
     for instance in [instance_api_1, instance_api_2]:
         floating_ip = get_floating_ip(conn)
         conn.ex_attach_floating_ip_to_node(instance, floating_ip)
-        print('allocated %(ip)s to %(host)s' % {'ip': floating_ip.ip_address, 'host': instance.name})
+        print(('allocated %(ip)s to %(host)s' % {'ip': floating_ip.ip_address, 'host': instance.name}))
 
     ###########################################################################
     #
@@ -301,12 +301,12 @@ def main():
     ###########################################################################
 
     userdata_worker = '''#!/usr/bin/env bash
-    curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
         -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
 
     # userdata_api-api-2 = '''#!/usr/bin/env bash
-    # curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
+    # curl -L -s ''' + hsfd_faafo_cloud_init_script + ''' | bash -s -- \
     #     -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
     # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
 
diff --git a/demo5-1-durable-storage.py b/demo5-1-durable-storage.py
index 8ffc581..79d2b8f 100644
--- a/demo5-1-durable-storage.py
+++ b/demo5-1-durable-storage.py
@@ -1,4 +1,4 @@
-from __future__ import print_function
+
 
 import getpass
 import os
@@ -27,12 +27,12 @@ def main():
     if "OS_PROJECT_NAME" in os.environ:
         project_name = os.environ["OS_PROJECT_NAME"]
     else:
-        project_name = input("Enter your OpenStack project:")
+        project_name = eval(input("Enter your OpenStack project:"))
 
     if "OS_USERNAME" in os.environ:
         auth_username = os.environ["OS_USERNAME"]
     else:
-        auth_username = input("Enter your OpenStack username:")
+        auth_username = eval(input("Enter your OpenStack username:"))
 
     if "OS_PASSWORD" in os.environ:
         auth_password = os.environ["OS_PASSWORD"]
diff --git a/demo5-2-backup-fractals.py b/demo5-2-backup-fractals.py
index ff49805..121f551 100644
--- a/demo5-2-backup-fractals.py
+++ b/demo5-2-backup-fractals.py
@@ -1,4 +1,4 @@
-from __future__ import print_function
+
 
 import getpass
 import json
@@ -28,12 +28,12 @@ def main():
     if "OS_PROJECT_NAME" in os.environ:
         project_name = os.environ["OS_PROJECT_NAME"]
     else:
-        project_name = input("Enter your OpenStack project:")
+        project_name = eval(input("Enter your OpenStack project:"))
 
     if "OS_USERNAME" in os.environ:
         auth_username = os.environ["OS_USERNAME"]
     else:
-        auth_username = input("Enter your OpenStack username:")
+        auth_username = eval(input("Enter your OpenStack username:"))
 
     if "OS_PASSWORD" in os.environ:
         auth_password = os.environ["OS_PASSWORD"]
diff --git a/destroy-all-demo-instances.py b/destroy-all-demo-instances.py
index c3b1204..fe4aeb9 100644
--- a/destroy-all-demo-instances.py
+++ b/destroy-all-demo-instances.py
@@ -13,7 +13,7 @@ from libcloud.compute.types import Provider
 # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
 # project etc., as coordinated in the lab sessions)
 
-group_number = 30
+group_number = X
 
 
 # web service endpoint of the private cloud infrastructure
@@ -70,7 +70,7 @@ def main():
     for instance in conn.list_nodes():
         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']:
-            print('Destroying Instance: %s' % instance.name)
+            print(('Destroying Instance: %s' % instance.name))
             conn.destroy_node(instance)
 
     # wait until all nodes are destroyed to be able to remove depended security groups
@@ -89,7 +89,7 @@ def main():
     # delete security groups
     for group in conn.ex_list_security_groups():
         if group.name in ['control', 'worker', 'api', 'services']:
-            print('Deleting security group: %s' % group.name)
+            print(('Deleting security group: %s' % group.name))
             conn.ex_delete_security_group(group)
 
 
diff --git a/faafo/bin/faafo b/faafo/bin/faafo
old mode 100644
new mode 100755
index a12770d..eceee54
--- a/faafo/bin/faafo
+++ b/faafo/bin/faafo
@@ -12,7 +12,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import copy
 import json
 import random
 import uuid
@@ -75,13 +74,19 @@ def get_random_task():
                             float(CONF.command.max_yb))
 
     task = {
-        'uuid': str(uuid.uuid4()),
-        'width': width,
-        'height': height,
-        'iterations': iterations, 'xa': xa,
-        'xb': xb,
-        'ya': ya,
-        'yb': yb
+        'data': {
+            'type': 'fractal',
+            'attributes': {
+                'uuid': str(uuid.uuid4()),
+                'width': width,
+                'height': height,
+                'iterations': iterations,
+                'xa': xa,
+                'xb': xb,
+                'ya': ya,
+                'yb': yb
+            }
+        }
     }
 
     return task
@@ -93,25 +98,31 @@ def do_get_fractal():
 
 def do_show_fractal():
     LOG.info("showing fractal %s" % CONF.command.uuid)
+    headers = {'Content-Type': 'application/vnd.api+json',
+                'Accept': 'application/vnd.api+json'}
     result = requests.get("%s/v1/fractal/%s" %
-                          (CONF.endpoint_url, CONF.command.uuid))
+                          (CONF.endpoint_url, CONF.command.uuid),
+                          headers=headers)
+    LOG.debug("result: %s" % result.text)
+
     if result.status_code == 200:
         data = json.loads(result.text)
+        fractal_data = data['data']['attributes']
         output = PrettyTable(["Parameter", "Value"])
         output.align["Parameter"] = "l"
         output.align["Value"] = "l"
-        output.add_row(["uuid", data['uuid']])
-        output.add_row(["duration", "%f seconds" % data['duration']])
+        output.add_row(["uuid", fractal_data['uuid']])
+        output.add_row(["duration", "%f seconds" % fractal_data['duration']])
         output.add_row(["dimensions", "%d x %d pixels" %
-                                      (data['width'], data['height'])])
-        output.add_row(["iterations", data['iterations']])
-        output.add_row(["xa", data['xa']])
-        output.add_row(["xb", data['xb']])
-        output.add_row(["ya", data['ya']])
-        output.add_row(["yb", data['yb']])
-        output.add_row(["size", "%d bytes" % data['size']])
-        output.add_row(["checksum", data['checksum']])
-        output.add_row(["generated_by", data['generated_by']])
+                                      (fractal_data['width'], fractal_data['height'])])
+        output.add_row(["iterations", fractal_data['iterations']])
+        output.add_row(["xa", fractal_data['xa']])
+        output.add_row(["xb", fractal_data['xb']])
+        output.add_row(["ya", fractal_data['ya']])
+        output.add_row(["yb", fractal_data['yb']])
+        output.add_row(["size", "%d bytes" % fractal_data['size']])
+        output.add_row(["checksum", fractal_data['checksum']])
+        output.add_row(["generated_by", fractal_data['generated_by']])
         print(output)
     else:
         LOG.error("fractal '%s' not found" % CONF.command.uuid)
@@ -123,34 +134,43 @@ def do_list_fractals():
     fractals = get_fractals()
     output = PrettyTable(["UUID", "Dimensions", "Filesize"])
     for fractal in fractals:
+        fractal_data = fractal['attributes']
         output.add_row([
-            fractal["uuid"],
-            "%d x %d pixels" % (fractal["width"], fractal["height"]),
-            "%d bytes" % (fractal["size"] or 0),
+            fractal_data["uuid"],
+            "%d x %d pixels" % (fractal_data["width"], fractal_data["height"]),
+            "%d bytes" % (fractal_data["size"] or 0),
         ])
     print(output)
 
 
 def get_fractals(page=1):
-    result = requests.get("%s/v1/fractal?page=%d" %
-                          (CONF.endpoint_url, page))
+    headers = {'Content-Type': 'application/vnd.api+json',
+                'Accept': 'application/vnd.api+json'}
+    result = requests.get("%s/v1/fractal?page=%d&page[size]=10" %
+                          (CONF.endpoint_url, page),
+                          headers=headers)
+    LOG.debug("result: %s" % result.text)
+
 
     fractals = []
     if result.status_code == 200:
         data = json.loads(result.text)
-        if page < data['total_pages']:
-            fractals = data['objects'] + get_fractals(page + 1)
+        if (page * 10) < data['meta']['total']:
+            fractals = data['data'] + get_fractals(page + 1)
         else:
-            return data['objects']
+            return data['data']
 
     return fractals
 
 
 def do_delete_fractal():
     LOG.info("deleting fractal %s" % CONF.command.uuid)
+    headers = {'Content-Type': 'application/vnd.api+json',
+                'Accept': 'application/vnd.api+json'}
     result = requests.delete("%s/v1/fractal/%s" %
-                             (CONF.endpoint_url, CONF.command.uuid))
-    LOG.debug("result: %s" %result)
+                             (CONF.endpoint_url, CONF.command.uuid),
+                             headers=headers)
+    LOG.debug("result: %s" % result.text)
 
 
 def do_create_fractal():
@@ -161,14 +181,14 @@ def do_create_fractal():
         number = random.randint(int(CONF.command.min_tasks),
                                 int(CONF.command.max_tasks))
     LOG.info("generating %d task(s)" % number)
-    for i in xrange(0, number):
+    for i in range(0, number):
         task = get_random_task()
         LOG.debug("created task %s" % task)
-        # NOTE(berendt): only necessary when using requests < 2.4.2
-        headers = {'Content-type': 'application/json',
-                   'Accept': 'text/plain'}
-        requests.post("%s/v1/fractal" % CONF.endpoint_url,
+        headers = {'Content-Type': 'application/vnd.api+json',
+                   'Accept': 'application/vnd.api+json'}
+        resp = requests.post("%s/v1/fractal" % CONF.endpoint_url,
                       json.dumps(task), headers=headers)
+        LOG.debug("resp: %s" % resp.text)
 
 
 def add_command_parsers(subparsers):
diff --git a/faafo/contrib/install-aws.sh b/faafo/contrib/install-aws.sh
old mode 100644
new mode 100755
index 9f402f1..b7515a5
--- a/faafo/contrib/install-aws.sh
+++ b/faafo/contrib/install-aws.sh
@@ -78,6 +78,7 @@ if [[ -e /etc/os-release ]]; then
     if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
         sudo apt-get update
     elif [[ $ID = 'fedora' ]]; then
+        # fedora currently not tested nor supported
         sudo dnf update -y
     fi
 
@@ -89,6 +90,7 @@ if [[ -e /etc/os-release ]]; then
             #sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
             sudo service mysql restart
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y mariadb-server python-mysql
             printf "[mysqld]\nbind-address = 127.0.0.1\n" | sudo tee /etc/my.cnf.d/faafo.conf
             sudo systemctl enable mariadb
@@ -105,7 +107,12 @@ if [[ -e /etc/os-release ]]; then
     if [[ $INSTALL_MESSAGING -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             sudo apt-get install -y rabbitmq-server
+            # fixes for rabbitmq setup
+            sudo rabbitmqctl add_user faafo guest
+            sudo rabbitmqctl set_user_tags faafo administrator
+            sudo rabbitmqctl set_permissions -p / faafo ".*" ".*" ".*"
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y rabbitmq-server
             sudo systemctl enable rabbitmq-server
             sudo systemctl start rabbitmq-server
@@ -117,6 +124,7 @@ if [[ -e /etc/os-release ]]; then
 
     if [[ $INSTALL_FAAFO -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
+            # TODO: needs to be updated for Ubuntu >= 20.04
             sudo apt-get install -y python-dev python-pip supervisor git zlib1g-dev libmysqlclient-dev python-mysqldb
             # Following is needed because of
             # https://bugs.launchpad.net/ubuntu/+source/supervisor/+bug/1594740
@@ -131,6 +139,7 @@ if [[ -e /etc/os-release ]]; then
                 fi
             fi
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y python-devel python-pip supervisor git zlib-devel mariadb-devel gcc which python-mysql
             sudo systemctl enable supervisord
             sudo systemctl start supervisord
@@ -171,6 +180,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_api" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_api" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
@@ -188,6 +198,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_worker" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_worker" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
diff --git a/faafo/contrib/install.sh b/faafo/contrib/install.sh
old mode 100644
new mode 100755
index 03c9228..90f2fb1
--- a/faafo/contrib/install.sh
+++ b/faafo/contrib/install.sh
@@ -78,26 +78,30 @@ if [[ -e /etc/os-release ]]; then
     if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
         sudo apt-get update
     elif [[ $ID = 'fedora' ]]; then
+        # fedora currently not tested nor supported
         sudo dnf update -y
     fi
 
     if [[ $INSTALL_DATABASE -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
-            sudo DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server python-mysqldb
+            sudo DEBIAN_FRONTEND=noninteractive apt-get install -y mariadb-server python3-mysqldb
             # HSFD changes for Ubuntu 18.04
-            sudo sed -i -e "/bind-address/d" /etc/mysql/mysql.conf.d/mysqld.cnf
-            #sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
-            sudo service mysql restart
+            #sudo sed -i -e "/bind-address/d" /etc/mysql/mysql.conf.d/mysqld.cnf
+            ##sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
+            sudo sed -i -e "s/127.0.0.1/0.0.0.0/g" /etc/mysql/mariadb.conf.d/50-server.cnf
+            sudo mysqladmin password password
+            sudo systemctl restart mariadb
         elif [[ $ID = 'fedora' ]]; then
-            sudo dnf install -y mariadb-server python-mysql
+            # fedora currently not tested nor supported
+            sudo dnf install -y mariadb-server python3-mysql
             printf "[mysqld]\nbind-address = 127.0.0.1\n" | sudo tee /etc/my.cnf.d/faafo.conf
+            sudo mysqladmin password password
             sudo systemctl enable mariadb
             sudo systemctl start mariadb
         else
             echo "error: distribution $ID not supported"
             exit 1
         fi
-        sudo mysqladmin password password
         sudo mysql -uroot -ppassword mysql -e "CREATE DATABASE IF NOT EXISTS faafo; GRANT ALL PRIVILEGES ON faafo.* TO 'faafo'@'%' IDENTIFIED BY 'password';"
         URL_DATABASE='mysql://root:password@localhost/faafo'
     fi
@@ -105,7 +109,12 @@ if [[ -e /etc/os-release ]]; then
     if [[ $INSTALL_MESSAGING -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             sudo apt-get install -y rabbitmq-server
+            # fixes for rabbitmq setup
+            sudo rabbitmqctl add_user faafo guest
+            sudo rabbitmqctl set_user_tags faafo administrator
+            sudo rabbitmqctl set_permissions -p / faafo ".*" ".*" ".*"
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             sudo dnf install -y rabbitmq-server
             sudo systemctl enable rabbitmq-server
             sudo systemctl start rabbitmq-server
@@ -117,7 +126,7 @@ if [[ -e /etc/os-release ]]; then
 
     if [[ $INSTALL_FAAFO -eq 1 ]]; then
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
-            sudo apt-get install -y python-dev python-pip supervisor git zlib1g-dev libmysqlclient-dev python-mysqldb
+            sudo apt-get install -y python3-dev python3-pip supervisor git zlib1g-dev libmysqlclient-dev python3-mysqldb python-is-python3
             # Following is needed because of
             # https://bugs.launchpad.net/ubuntu/+source/supervisor/+bug/1594740
             if [ $(lsb_release --short --codename) = xenial ]; then
@@ -131,7 +140,8 @@ if [[ -e /etc/os-release ]]; then
                 fi
             fi
         elif [[ $ID = 'fedora' ]]; then
-            sudo dnf install -y python-devel python-pip supervisor git zlib-devel mariadb-devel gcc which python-mysql
+            # fedora currently not tested nor supported
+            sudo dnf install -y python3-devel python3-pip supervisor git zlib-devel mariadb-devel gcc which python3-mysql
             sudo systemctl enable supervisord
             sudo systemctl start supervisord
         #elif [[ $ID = 'opensuse' || $ID = 'sles' ]]; then
@@ -142,12 +152,13 @@ if [[ -e /etc/os-release ]]; then
         fi
 
         # HSFD changed to local repo
-        git clone https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
+        #git clone https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
+        git clone --branch dev_faafo https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples
         cd cloud-computing-msc-ai-examples/faafo
         # following line required by bug 1636150
         sudo pip install --upgrade pbr
         sudo pip install -r requirements.txt
-        sudo python setup.py install
+        sudo python3 setup.py install
 
         sudo sed -i -e "s#transport_url = .*#transport_url = $URL_MESSAGING#" /etc/faafo/faafo.conf
         sudo sed -i -e "s#database_url = .*#database_url = $URL_DATABASE#" /etc/faafo/faafo.conf
@@ -165,6 +176,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_api" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_api" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
@@ -182,6 +194,7 @@ startretries=0"
         if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
             echo "$faafo_worker" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
         elif [[ $ID = 'fedora' ]]; then
+            # fedora currently not tested nor supported
             echo "$faafo_worker" | sudo tee -a /etc/supervisord.d/faafo.ini
         else
             echo "error: distribution $ID not supported"
diff --git a/faafo/contrib/test_api.py b/faafo/contrib/test_api.py
index 559ac3d..6dd9823 100644
--- a/faafo/contrib/test_api.py
+++ b/faafo/contrib/test_api.py
@@ -34,11 +34,11 @@ assert response.status_code == 201
 
 response = requests.get(url, headers=headers)
 assert response.status_code == 200
-print(response.json())
+print((response.json()))
 
 response = requests.get(url + '/' + uuid, headers=headers)
 assert response.status_code == 200
-print(response.json())
+print((response.json()))
 
 data = {
     'checksum': 'c6fef4ef13a577066c2281b53c82ce2c7e94e',
@@ -50,7 +50,7 @@ assert response.status_code == 200
 
 response = requests.get(url + '/' + uuid, headers=headers)
 assert response.status_code == 200
-print(response.json())
+print((response.json()))
 
 response = requests.delete(url + '/' + uuid, headers=headers)
 assert response.status_code == 204
diff --git a/faafo/doc/source/conf.py b/faafo/doc/source/conf.py
index d78328c..83d6994 100644
--- a/faafo/doc/source/conf.py
+++ b/faafo/doc/source/conf.py
@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-copyright = u'2015, OpenStack contributors'
+copyright = '2015, OpenStack contributors'
 master_doc = 'index'
-project = u'First App Application for OpenStack'
+project = 'First App Application for OpenStack'
 source_suffix = '.rst'
diff --git a/faafo/doc/source/conf.py.bak b/faafo/doc/source/conf.py.bak
new file mode 100644
index 0000000..d78328c
--- /dev/null
+++ b/faafo/doc/source/conf.py.bak
@@ -0,0 +1,17 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+copyright = u'2015, OpenStack contributors'
+master_doc = 'index'
+project = u'First App Application for OpenStack'
+source_suffix = '.rst'
diff --git a/faafo/faafo/api/service.py b/faafo/faafo/api/service.py
index a3093c7..8843999 100644
--- a/faafo/faafo/api/service.py
+++ b/faafo/faafo/api/service.py
@@ -12,7 +12,8 @@
 
 import base64
 import copy
-import cStringIO
+import io
+import socket
 from pkg_resources import resource_filename
 
 import flask
@@ -60,7 +61,10 @@ template_path = resource_filename(__name__, "templates")
 app = flask.Flask('faafo.api', template_folder=template_path)
 app.config['DEBUG'] = CONF.debug
 app.config['SQLALCHEMY_DATABASE_URI'] = CONF.database_url
-db = SQLAlchemy(app)
+
+with app.app_context():
+    db = SQLAlchemy(app)
+
 Bootstrap(app)
 
 
@@ -95,8 +99,10 @@ class Fractal(db.Model):
         return '<Fractal %s>' % self.uuid
 
 
-db.create_all()
-manager = APIManager(app, flask_sqlalchemy_db=db)
+with app.app_context():
+    db.create_all()
+
+manager = APIManager(app=app, session=db.session)
 connection = Connection(CONF.transport_url)
 
 
@@ -104,10 +110,11 @@ connection = Connection(CONF.transport_url)
 @app.route('/index', methods=['GET'])
 @app.route('/index/<int:page>', methods=['GET'])
 def index(page=1):
+    hostname = socket.gethostname()
     fractals = Fractal.query.filter(
-        (Fractal.checksum != None) & (Fractal.size != None)).paginate(  # noqa
-            page, 5, error_out=False)
-    return flask.render_template('index.html', fractals=fractals)
+        (Fractal.checksum is not None) & (Fractal.size is not None)).paginate(
+            page=page, per_page=5)
+    return flask.render_template('index.html', fractals=fractals, hostname=hostname)
 
 
 @app.route('/fractal/<string:fractalid>', methods=['GET'])
@@ -119,8 +126,8 @@ def get_fractal(fractalid):
         response.status_code = 404
     else:
         image_data = base64.b64decode(fractal.image)
-        image = Image.open(cStringIO.StringIO(image_data))
-        output = cStringIO.StringIO()
+        image = Image.open(io.BytesIO(image_data))
+        output = io.BytesIO()
         image.save(output, "PNG")
         image.seek(0)
         response = flask.make_response(output.getvalue())
@@ -130,6 +137,7 @@ def get_fractal(fractalid):
 
 
 def generate_fractal(**kwargs):
+    LOG.debug("Postprocessor called!" + str(kwargs))
     with producers[connection].acquire(block=True) as producer:
         producer.publish(kwargs['result'],
                          serializer='json',
@@ -138,9 +146,21 @@ def generate_fractal(**kwargs):
                          routing_key='normal')
 
 
+def convert_image_to_binary(**kwargs):
+    LOG.debug("Preprocessor call: " + str(kwargs))
+    if 'image' in kwargs['data']['data']['attributes']:
+        LOG.debug("Converting image to binary...")
+        kwargs['data']['data']['attributes']['image'] = \
+            str(kwargs['data']['data']['attributes']['image']).encode("ascii")
+
+
 def main():
-    manager.create_api(Fractal, methods=['GET', 'POST', 'DELETE', 'PUT'],
-                       postprocessors={'POST': [generate_fractal]},
-                       exclude_columns=['image'],
-                       url_prefix='/v1')
-    app.run(host=CONF.listen_address, port=CONF.bind_port)
+    print("Starting API server - new...")
+    with app.app_context():
+        manager.create_api(Fractal, methods=['GET', 'POST', 'DELETE', 'PATCH'],
+                           postprocessors={'POST_RESOURCE': [generate_fractal]},
+                           preprocessors={'PATCH_RESOURCE': [convert_image_to_binary]},
+                           exclude=['image'],
+                           url_prefix='/v1',
+                           allow_client_generated_ids=True)
+    app.run(host=CONF.listen_address, port=CONF.bind_port, debug=True)
diff --git a/faafo/faafo/api/templates/index.html b/faafo/faafo/api/templates/index.html
index cc4a44a..8a7a142 100644
--- a/faafo/faafo/api/templates/index.html
+++ b/faafo/faafo/api/templates/index.html
@@ -57,4 +57,14 @@ yb = {{ fractal.yb }}</pre>
 </div>
 {% endfor %}
 {{render_pagination(fractals)}}
+<!-- requires POST request to have Content-Type: "application/vnd.api+json" header, would require Fetch API or XMLHTTPRequest etc.
+<div>
+  <form action="/v1/fractal" method="POST">
+    <input type="submit" value="Create new fractals">
+  </form>
+</div>
+-->
+<div>
+  Rendered by server: {{hostname}}
+</div>
 {% endblock %}
diff --git a/faafo/faafo/worker/service.py b/faafo/faafo/worker/service.py
index d1bb193..edd4784 100644
--- a/faafo/faafo/worker/service.py
+++ b/faafo/faafo/worker/service.py
@@ -19,12 +19,13 @@ import copy
 import hashlib
 import json
 import os
-from PIL import Image
 import random
 import socket
 import tempfile
 import time
 
+from PIL import Image
+
 from kombu.mixins import ConsumerMixin
 from oslo_config import cfg
 from oslo_log import log
@@ -110,7 +111,8 @@ class Worker(ConsumerMixin):
                          accept=['json'],
                          callbacks=[self.process])]
 
-    def process(self, task, message):
+    def process(self, task_def, message):
+        task = task_def['data']['attributes']
         LOG.info("processing task %s" % task['uuid'])
         LOG.debug(task)
         start_time = time.time()
@@ -136,21 +138,29 @@ class Worker(ConsumerMixin):
         LOG.debug("removed temporary file %s" % filename)
 
         result = {
-            'uuid': task['uuid'],
-            'duration': elapsed_time,
-            'image': image,
-            'checksum': checksum,
-            'size': size,
-            'generated_by': socket.gethostname()
+            'data': {
+                'type': 'fractal',             
+                'id': task['uuid'],
+                'attributes': {
+                    'uuid': task['uuid'],
+                    'duration': elapsed_time,
+                    'image': image.decode("ascii"),
+                    'checksum': checksum,
+                    'size': size,
+                    'generated_by': socket.gethostname()
+                }
+            }
         }
 
-        # NOTE(berendt): only necessary when using requests < 2.4.2
-        headers = {'Content-type': 'application/json',
-                   'Accept': 'text/plain'}
+        headers = {'Content-Type': 'application/vnd.api+json',
+                   'Accept': 'application/vnd.api+json'}
 
-        requests.put("%s/v1/fractal/%s" %
-                     (CONF.endpoint_url, str(task['uuid'])),
-                     json.dumps(result), headers=headers)
+        resp = requests.patch("%s/v1/fractal/%s" %
+                              (CONF.endpoint_url, str(task['uuid'])),
+                              json.dumps(result), 
+                              headers=headers,
+                              timeout=30)
+        LOG.debug("Result: %s" % resp.text)
 
         message.ack()
         return result
diff --git a/faafo/requirements.txt b/faafo/requirements.txt
index d2c9d2c..fd17007 100644
--- a/faafo/requirements.txt
+++ b/faafo/requirements.txt
@@ -1,18 +1,31 @@
-pbr>=1.6
+#pbr>=1.6
+pbr
 pytz
 positional
 iso8601
-anyjson>=0.3.3
-eventlet>=0.17.4
-PyMySQL>=0.6.2,<0.7  # 0.7 design change breaks faafo, MIT License
-SQLAlchemy>1.3,<1.4  # 1.4 breaks faafo list
-Pillow==2.4.0 # MIT
-requests>=2.5.2
+#anyjson>=0.3.3
+#anyjson
+#eventlet>=0.17.4
+eventlet
+#PyMySQL>=0.6.2,<0.7  # 0.7 design change breaks faafo, MIT License
+#PyMySQL>=0.6.2
+PyMySQL
+#SQLAlchemy>1.3,<1.4  # 1.4 breaks faafo list
+#SQLAlchemy>=2.0.16
+SQLAlchemy
+#Pillow==2.4.0 # MIT
+Pillow
+#requests>=2.5.2
+requests
 Flask-Bootstrap
 Flask
-flask-restless
+flask-restless-ng
 flask-sqlalchemy
-oslo.config>=2.3.0  # Apache-2.0
-oslo.log>=1.8.0  # Apache-2.0
-PrettyTable>=0.7,<0.8
-kombu>=3.0.7
+#oslo.config>=2.3.0  # Apache-2.0
+#oslo.log>=1.8.0  # Apache-2.0
+#PrettyTable>=0.7,<0.8
+#kombu>=3.0.7
+oslo.config
+oslo.log
+PrettyTable
+kombu
\ No newline at end of file
diff --git a/faafo/setup.cfg b/faafo/setup.cfg
index 47e621e..df7cb1b 100644
--- a/faafo/setup.cfg
+++ b/faafo/setup.cfg
@@ -13,8 +13,7 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
 
 [files]
 packages =