updated demo4 to support AWS Academy lab setup

example-projects/demo3-microservice-in-aws-destroy.py

@@ -10,20 +10,15 @@ from libcloud.compute.types import Provider, NodeState
 
 home = expanduser("~")
 
-# reqs:
-#   services: EC2 (nova, glance, neutron)
-#   resources: 2 instances (m1.small), 2 elastic ips (1 keypair, 2 security groups)
-
-
 # default region
 # region_name = 'eu-central-1'
 # region_name = 'ap-south-1'
 
-# AWS Educate only allows us-east-1 see our AWS classroom at https://www.awseducate.com
-# e.g., https://www.awseducate.com/student/s/launch-classroom?classroomId=a1v3m000005mNm6AAE
-
+# AWS Academy Labs only allow us-east-1 see our AWS Academy Lab Guide, https://awsacademy.instructure.com/login/
 region_name = 'us-east-1'
 
+# keypairs are kept and not deleted, they do not cost anything anyway
+
 
 def main():
     ###########################################################################

example-projects/demo3-microservice-in-aws.py

@@ -7,9 +7,11 @@ from libcloud.compute.types import Provider
 
 home = expanduser("~")
 
-# reqs:
-#   services: EC2 (nova, glance, neutron)
-#   resources: 2 instances, 2 elastic ips (1 keypair, 2 security groups)
+# requirements:
+#   services: EC2
+#   resources: 2 instances (1 keypair, 2 security groups)
+#              optionally also elastic ip (comparable to floating ip) offering a persistent public
+#              IP, but elastic ips are expensive - make sure to delete them after you used them
 
 # The image to look for and use for the started instance
 ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20210128'
@@ -33,7 +35,7 @@ flavor_name = 't2.nano'
 region_name = 'us-east-1'
 
 # starting instances in AWS Academy takes significantly longer compared to paid AWS accounts, allow ~ >2 minutes timeout
-timeout = 300
+timeout = 600
 
 
 def main():

example-projects/demo4-scale-out-lb-in-aws-destroy.py

@@ -1,3 +1,6 @@
+import configparser
+from os.path import expanduser
+
 # import getpass
 # import os
 # import libcloud.security
@@ -12,33 +15,17 @@ from libcloud.loadbalancer.base import Member, Algorithm
 from libcloud.loadbalancer.types import Provider as loadbalancer_Provider
 from libcloud.loadbalancer.providers import get_driver as loadbalancer_get_driver
 
-# reqs:
-#   services: EC2 (nova, glance, neutron)
-#   resources: 2 instances, 2 elastic ips (1 keypair, 2 security groups)
-
-# The image to look for and use for the started instance
-# ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20200408'
-ubuntu_image_id = "ami-085925f297f89fce1"  # local ami id for resent ubuntu 18.04 20200408 in us-west-1
-
-# 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'
-pub_key_file = '~/.ssh/id_rsa.pub'
-
-flavor_name = 't2.nano'
+home = expanduser("~")
 
 # default region
 # region_name = 'eu-central-1'
 # region_name = 'ap-south-1'
 
-# AWS Educate only allows us-east-1 see our AWS classroom at https://www.awseducate.com
-# e.g., https://www.awseducate.com/student/s/launch-classroom?classroomId=a1v3m000005mNm6AAE
-
+# AWS Academy Labs only allow us-east-1 see our AWS Academy Lab Guide, https://awsacademy.instructure.com/login/
 region_name = 'us-east-1'
 
+# keypairs are kept and not deleted, they do not cost anything anyway
+
 
 def main():
     ###########################################################################
@@ -47,17 +34,18 @@ def main():
     #
     ###########################################################################
 
-    # see AWS Educate classroom, Account Details
+    # see AWS Academy Lab for Account Details
+    # read credentials from file
+    config = configparser.ConfigParser()
+    config.read_file(open(home + '/.aws/credentials'))
+    aws_access_key_id = config['default']['aws_access_key_id']
+    aws_secret_access_key = config['default']['aws_secret_access_key']
+    aws_session_token = config['default']['aws_session_token']
+
+    # aws_access_key_id = "ASIAX..."
+    # aws_secret_access_key = "eGwE12j..."
+    # aws_session_token = "FwoGZXIvYXdzEK///////////wEaDE..."
 
-    # access_id = getpass.win_getpass("Enter your access_id:")
-    # secret_key = getpass.win_getpass("Enter your secret_key:")
-    # session_token = getpass.win_getpass("Enter your session_token:")
-    # access_id = "ASIAU..."
-    # secret_key = "7lafW..."
-    # session_token = "IQoJb3JpZ...EMb//..."
-    access_id = "ASIA5ML7..."
-    secret_key = "76lAjn..."
-    session_token = "IQoJb3JpZ2luX2VjEBc..."
 
     ###########################################################################
     #
@@ -66,9 +54,9 @@ def main():
     ###########################################################################
 
     elb_provider = loadbalancer_get_driver(loadbalancer_Provider.ELB)
-    elb_conn = elb_provider(access_id,
-                            secret_key,
-                            token=session_token,
+    elb_conn = elb_provider(aws_access_key_id,
+                            aws_secret_access_key,
+                            token=aws_session_token,
                             region=region_name)
 
     print("Deleting previously created load balancers in: " + str(elb_conn.list_balancers()))
@@ -83,9 +71,9 @@ def main():
     ###########################################################################
 
     provider = compute_get_driver(compute_Provider.EC2)
-    conn = provider(key=access_id,
-                    secret=secret_key,
-                    token=session_token,
+    conn = provider(key=aws_access_key_id,
+                    secret=aws_secret_access_key,
+                    token=aws_session_token,
                     region=region_name)
 
     ###########################################################################
@@ -102,7 +90,7 @@ def main():
                 print('Destroying Instance: %s' % instance.name)
                 conn.destroy_node(instance)
 
-    # wait until all nodes are destroyed to be able to remove depended security groups
+    # wait until all nodes are destroyed to be able to remove dependent security groups
     nodes_still_running = True
     while nodes_still_running:
         nodes_still_running = False
@@ -115,19 +103,30 @@ def main():
                     nodes_still_running = True
         print('There are still instances running, waiting for them to be destroyed...')
 
-    # delete security groups, respecting dependencies (hence deleting 'control' and 'services' first)
+    # delete security groups
+    for group in conn.ex_list_security_groups():
+        # services depends on worker and api, so delete services first...
+        if group in ['services']:
+            print('Deleting security group: %s' % group)
+            conn.ex_delete_security_group(group)
+
     for group in conn.ex_list_security_groups():
-        if group in ['control', 'services']:
+        # control depends on worker, so delete control before worker...
+        if group in ['control']:
             print('Deleting security group: %s' % group)
             conn.ex_delete_security_group(group)
 
-    # now we can delete security groups 'api' and 'worker', as 'control' and 'api' depended on them, otherwise AWS will
-    # throw DependencyViolation: resource has a dependent object
     for group in conn.ex_list_security_groups():
-        if group in ['api', 'worker']:
+        if group in ['worker', 'api']:
             print('Deleting security group: %s' % group)
             conn.ex_delete_security_group(group)
 
+    # release elastic ips
+    for elastic_ip in conn.ex_describe_all_addresses():
+        if elastic_ip.instance_id is None:
+            print('Releasing unused elastic ip %s' % elastic_ip)
+            conn.ex_release_address(elastic_ip, domain=elastic_ip.domain)
+
 
 if __name__ == '__main__':
     main()

example-projects/demo4-scale-out-lb-in-aws.py

@@ -1,5 +1,6 @@
-# import getpass
-# import os
+import configparser
+from os.path import expanduser
+
 # import libcloud.security
 import time
 
@@ -12,13 +13,16 @@ from libcloud.loadbalancer.base import Member, Algorithm
 from libcloud.loadbalancer.types import Provider as loadbalancer_Provider
 from libcloud.loadbalancer.providers import get_driver as loadbalancer_get_driver
 
-# reqs:
-#   services: EC2 (nova, glance, neutron)
-#   resources: 2 instances, 2 elastic ips (1 keypair, 2 security groups)
+home = expanduser("~")
+
+# requirements:
+#   services: EC2, ELB
+#   resources: 2 instances, (1 keypair, 2 security groups),
+#              1 (Classic) Elastic Load Balancer, expensive! delete it after you used it!
 
 # The image to look for and use for the started instance
-# ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20200408'
-ubuntu_image_id = "ami-085925f297f89fce1" # local ami id for resent ubuntu 18.04 20200408 in us-west-1
+ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20210128'
+# TODO: 18.04, currently still needed for faafo, need to port faafo demo app to 20.04 or higher and python3...
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
@@ -26,7 +30,7 @@ ubuntu_image_id = "ami-085925f297f89fce1" # local ami id for resent ubuntu 18.04
 # ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
 
 keypair_name = 'srieger-pub'
-pub_key_file = '~/.ssh/id_rsa.pub'
+pub_key_file = home + '/.ssh/id_rsa.pub'
 
 flavor_name = 't2.nano'
 
@@ -34,11 +38,12 @@ flavor_name = 't2.nano'
 # region_name = 'eu-central-1'
 # region_name = 'ap-south-1'
 
-# AWS Educate only allows us-east-1 see our AWS classroom at https://www.awseducate.com
-# e.g., https://www.awseducate.com/student/s/launch-classroom?classroomId=a1v3m000005mNm6AAE
-
+# AWS Academy Labs only allow us-east-1 see our AWS Academy Lab Guide, https://awsacademy.instructure.com/login/
 region_name = 'us-east-1'
 
+# starting instances in AWS Academy takes significantly longer compared to paid AWS accounts, allow ~ >2 minutes timeout
+timeout = 600
+
 
 def main():
     ###########################################################################
@@ -47,17 +52,19 @@ def main():
     #
     ###########################################################################
 
-    # see AWS Educate classroom, Account Details
+    # see AWS Academy Lab for Account Details
+    # read credentials from file
+    config = configparser.ConfigParser()
+    config.read_file(open(home + '/.aws/credentials'))
+    aws_access_key_id = config['default']['aws_access_key_id']
+    aws_secret_access_key = config['default']['aws_secret_access_key']
+    aws_session_token = config['default']['aws_session_token']
+
+    # hard coded AWS credentials using vars
+    # aws_access_key_id = "ASIAX..."
+    # aws_secret_access_key = "WLxxXK+..."
+    # aws_session_token = "FwoGZXIvYXdzEMb//////////wEaDE5rX.......0SleZ+L75I9iEri9LA4hovWul8HvexhCBK8.......................Ae/T+VkUbcQRtJEDwg+gYCABuk0JlSj5Wk7YA65r3BSNJXZFpkhbek6VBjvE/cEt5fKZEhENcdFxjAcAJLd6bOWi/oGXU5e3PX3mcXgm0oJpz6h3wqD1LvSDtw5GDwn0BHiF1Mu.......................cm/VukK5F"
 
-    # access_id = getpass.win_getpass("Enter your access_id:")
-    # secret_key = getpass.win_getpass("Enter your secret_key:")
-    # session_token = getpass.win_getpass("Enter your session_token:")
-    # access_id = "ASIAU..."
-    # secret_key = "7lafW..."
-    # session_token = "IQoJb3JpZ...EMb//..."
-    access_id = "ASIA..."
-    secret_key = "76lAj..."
-    session_token = "IQoJ..."
 
     ###########################################################################
     #
@@ -66,9 +73,9 @@ def main():
     ###########################################################################
 
     provider = compute_get_driver(compute_Provider.EC2)
-    conn = provider(key=access_id,
-                    secret=secret_key,
-                    token=session_token,
+    conn = provider(key=aws_access_key_id,
+                    secret=aws_secret_access_key,
+                    token=aws_session_token,
                     region=region_name)
 
     ###########################################################################
@@ -77,15 +84,32 @@ def main():
     #
     ###########################################################################
 
+    print("Search for AMI...")
+    image = conn.list_images(ex_filters={"name": ubuntu_image_name})[0]
+    print("Using image: %s" % image)
+
     # print("Fetching images (AMI) list from AWS region. This will take a lot of seconds (AWS has a very long list of "
     #       "supported operating systems and versions)... please be patient...")
-    # images = conn.list_images()
+    # image = ''
+    # for img in images:
+    #   # if img.name == ubuntu_image_name:
+    #   if img.extra['owner_alias'] == 'amazon':
+    #       print(img)
+    #   if img.id == ubuntu_image_name:
+    #       image = img
+
     # fetch/select the image referenced with ubuntu_image_name above
     # image = [i for i in images if i.name == ubuntu_image_name][0]
     # print(image)
 
-    # selecting the image based on defined AMI id
-    image = NodeImage(id=ubuntu_image_id, name=None, driver=conn)
+    # select image directly to save time, as retrieving the image list takes several minutes now,
+    # need to change ami id here if updated or for other regions, id is working for course in
+    # summer term 2022, in region: us-east-1 and pointing to ubuntu 18.04 used in the instance wizard,
+    # to update AMI id use the create instance wizard and copy amd64 image id for ubuntu 18.04 in the
+    # desired region
+    # image = NodeImage(id="ami-0e472ba40eb589f49",
+    #                   name=ubuntu_image_name,
+    #                   driver="hvm")
 
     flavors = conn.list_sizes()
     flavor = [s for s in flavors if s.id == flavor_name][0]
@@ -132,7 +156,7 @@ def main():
                 print('Destroying Instance: %s' % instance.name)
                 conn.destroy_node(instance)
 
-    # wait until all nodes are destroyed to be able to remove depended security groups
+    # wait until all nodes are destroyed to be able to remove dependent security groups
     nodes_still_running = True
     while nodes_still_running:
         nodes_still_running = False
@@ -234,7 +258,7 @@ def main():
     # Thanks to Stefan Friedmann for finding this fix ;)
 
     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 https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install-aws.sh | bash -s -- \
         -i database -i messaging
     rabbitmqctl add_user faafo guest
     rabbitmqctl set_user_tags faafo administrator
@@ -258,7 +282,7 @@ 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 https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install-aws.sh | 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}
@@ -291,7 +315,7 @@ 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 https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install-aws.sh | 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}
 
@@ -335,9 +359,9 @@ def main():
     ###########################################################################
 
     elb_provider = loadbalancer_get_driver(loadbalancer_Provider.ELB)
-    elb_conn = elb_provider(access_id,
-                            secret_key,
-                            token=session_token,
+    elb_conn = elb_provider(aws_access_key_id,
+                            aws_secret_access_key,
+                            token=aws_session_token,
                             region=region_name)
 
     print("Deleting previously created load balancers in: " + str(elb_conn.list_balancers()))