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449 lines
21 KiB
449 lines
21 KiB
import configparser
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from os.path import expanduser
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# import libcloud.security
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import time
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from libcloud.compute.base import NodeImage
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from libcloud.compute.base import NodeState
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from libcloud.compute.providers import get_driver as compute_get_driver
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from libcloud.compute.types import Provider as compute_Provider
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from libcloud.loadbalancer.base import Member, Algorithm
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from libcloud.loadbalancer.types import Provider as loadbalancer_Provider
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from libcloud.loadbalancer.providers import get_driver as loadbalancer_get_driver
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home = expanduser("~")
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# requirements:
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# services: EC2, ELB
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# resources: 2 instances, (1 keypair, 2 security groups),
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# 1 (Classic) Elastic Load Balancer, expensive! delete it after you used it!
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# The image to look for and use for the started instance
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ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20210128'
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# ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20210128'
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# TODO: 18.04, currently still needed for faafo, need to port faafo demo app to 20.04 or higher and python3...
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# The public key to be used for SSH connection, please make sure, that you have the corresponding private key
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# use existing vockey in AWS Lab env from vocareum, enables login directly
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# from the lab's terminal:
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#
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# ssh -i ~/.ssh/labuser.pem ubuntu@<public-ip>
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keypair_name = "vockey"
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# keypair_name = 'srieger-pub'
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# pub_key_file = home + '/.ssh/id_rsa.pub'
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# id_rsa.pub should look like this (standard sshd pubkey format):
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# ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
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# flavor_name = 't2.nano'
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# t2.nano only has 512 MB RAM, pip install will cause out of memory (OOM), install-aws.sh cloud-init script uses swap
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# to circumvent this issue, but t2.micro is also cheap and has 1 GB RAM which is sufficient for faafo example
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flavor_name = 't2.micro'
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# default region
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# region_name = 'eu-central-1'
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# region_name = 'ap-south-1'
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# AWS Academy Labs only allow us-east-1 and us-west-1 see our AWS Academy Lab Guide, https://awsacademy.instructure.com/login/
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region_name = 'us-east-1'
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# region_name = 'us-west-1'
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# starting instances in AWS Academy takes significantly longer compared to paid AWS accounts, allow ~ >2 minutes timeout
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timeout = 600
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def main():
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###########################################################################
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#
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# get credentials
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#
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###########################################################################
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# see AWS Academy Lab for Account Details
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# read credentials from file
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config = configparser.ConfigParser()
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config.read_file(open(home + '/.aws/credentials'))
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aws_access_key_id = config['default']['aws_access_key_id']
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aws_secret_access_key = config['default']['aws_secret_access_key']
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aws_session_token = config['default']['aws_session_token']
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# hard coded AWS credentials using vars
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# aws_access_key_id = "ASIAX..."
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# aws_secret_access_key = "WLxxXK+..."
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# aws_session_token = "FwoGZXIvYXdzEMb//////////wEaDE5rX.......0SleZ+L75I9iEri9LA4hovWul8HvexhCBK8.......................Ae/T+VkUbcQRtJEDwg+gYCABuk0JlSj5Wk7YA65r3BSNJXZFpkhbek6VBjvE/cEt5fKZEhENcdFxjAcAJLd6bOWi/oGXU5e3PX3mcXgm0oJpz6h3wqD1LvSDtw5GDwn0BHiF1Mu.......................cm/VukK5F"
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###########################################################################
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#
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# create connection
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#
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###########################################################################
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provider = compute_get_driver(compute_Provider.EC2)
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conn = provider(key=aws_access_key_id,
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secret=aws_secret_access_key,
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token=aws_session_token,
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region=region_name)
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###########################################################################
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#
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# get image, flavor, network for instance creation
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#
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###########################################################################
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# print("Search for AMI...")
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# image = conn.list_images(ex_filters={"name": ubuntu_image_name})[0]
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# print("Using image: %s" % image)
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# print("Fetching images (AMI) list from AWS region. This will take a lot of seconds (AWS has a very long list of "
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# "supported operating systems and versions)... please be patient...")
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# image = ''
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# for img in images:
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# # if img.name == ubuntu_image_name:
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# if img.extra['owner_alias'] == 'amazon':
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# print(img)
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# if img.id == ubuntu_image_name:
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# image = img
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# select image directly to save time, as retrieving the image list takes several minutes now,
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# need to change ami id here if updated or for other regions, id is working for course in
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# summer term 2022, in region: us-east-1 and pointing to ubuntu 18.04 used in the instance wizard,
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# to update AMI id use the create instance wizard and copy amd64 image id for ubuntu 18.04 in the
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# desired region
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#
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print("Selecting AMI...")
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# us-east-1 examples as of 9.5.2022:
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#
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# Canonical, Ubuntu, 18.04 LTS, amd64 bionic image build on 2022-04-11
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image_id = "ami-005de95e8ff495156"
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#
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# Canonical, Ubuntu, 20.04 LTS, amd64 focal image build on 2022-04-19
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# image_id = "ami-0c4f7023847b90238"
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#
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# Canonical, Ubuntu, 22.04 LTS, amd64 jammy image build on 2022-04-20
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# image_id = "ami-09d56f8956ab235b3"
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#
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image = conn.list_images(ex_image_ids=[image_id])[0]
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print("Using image: %s" % image)
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flavors = conn.list_sizes()
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flavor = [s for s in flavors if s.id == flavor_name][0]
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print(flavor)
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# networks = conn.ex_list_networks()
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# network = ''
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# for net in networks:
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# if net.name == project_network:
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# network = net
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###########################################################################
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#
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# create keypair dependency
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#
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###########################################################################
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print('Checking for existing SSH key pair...')
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keypair_exists = False
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for keypair in conn.list_key_pairs():
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if keypair.name == keypair_name:
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keypair_exists = True
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if keypair_exists:
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print('Keypair ' + keypair_name + ' already exists. Skipping import.')
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else:
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print('adding keypair...')
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conn.import_key_pair_from_file(keypair_name, pub_key_file)
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for keypair in conn.list_key_pairs():
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print(keypair)
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###########################################################################
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#
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# clean up resources from previous demos
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#
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###########################################################################
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# destroy running demo instances
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for instance in conn.list_nodes():
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if instance.name in ['all-in-one', 'app-worker-1', 'app-worker-2', 'app-worker-3', 'app-controller',
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'app-services', 'app-api-1', 'app-api-2']:
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if instance.state is not NodeState.TERMINATED:
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print('Destroying Instance: %s' % instance.name)
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conn.destroy_node(instance)
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# wait until all nodes are destroyed to be able to remove dependent security groups
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nodes_still_running = True
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while nodes_still_running:
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nodes_still_running = False
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time.sleep(3)
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instances = conn.list_nodes()
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for instance in instances:
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# if we see any demo instances still running continue to wait for them to stop
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if instance.name in ['all-in-one', 'app-worker-1', 'app-worker-2', 'app-worker-3', 'app-controller',
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'app-services', 'app-api-1', 'app-api-2']:
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if instance.state is not NodeState.TERMINATED:
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nodes_still_running = True
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if nodes_still_running is True:
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print('There are still instances running, waiting for them to be destroyed...')
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else:
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print('No instances running')
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# delete security groups, respecting dependencies (hence deleting 'control' and 'services' first)
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for group in conn.ex_list_security_groups():
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if group in ['control', 'services']:
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print('Deleting security group: %s' % group)
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conn.ex_delete_security_group(group)
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# now we can delete security groups 'api' and 'worker', as 'control' and 'api' depended on them, otherwise AWS will
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# throw DependencyViolation: resource has a dependent object
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for group in conn.ex_list_security_groups():
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if group in ['api', 'worker']:
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print('Deleting security group: %s' % group)
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conn.ex_delete_security_group(group)
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###########################################################################
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#
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# create security group dependency
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#
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###########################################################################
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def get_security_group(connection, security_group_name):
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"""A helper function to check if security group already exists"""
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print('Checking for existing ' + security_group_name + ' security group...')
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for security_grp in connection.ex_list_security_groups():
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if security_grp == security_group_name:
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print('Security Group ' + security_group_name + ' already exists. Skipping creation.')
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return security_grp['group_id']
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return False
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if not get_security_group(conn, "api"):
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api_security_group_result = conn.ex_create_security_group('api', 'for API services only')
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api_security_group_id = api_security_group_result['group_id']
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conn.ex_authorize_security_group_ingress(api_security_group_id, 22, 22, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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conn.ex_authorize_security_group_ingress(api_security_group_id, 80, 80, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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else:
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api_security_group_id = get_security_group(conn, "api")
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if not get_security_group(conn, "worker"):
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worker_security_group_result = conn.ex_create_security_group('worker', 'for services that run on a worker node')
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worker_security_group_id = worker_security_group_result['group_id']
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conn.ex_authorize_security_group_ingress(worker_security_group_id, 22, 22, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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else:
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worker_security_group_id = get_security_group(conn, "worker")
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if not get_security_group(conn, "control"):
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controller_security_group_result = conn.ex_create_security_group('control',
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'for services that run on a control node')
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controller_security_group_id = controller_security_group_result['group_id']
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conn.ex_authorize_security_group_ingress(controller_security_group_id, 22, 22, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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conn.ex_authorize_security_group_ingress(controller_security_group_id, 80, 80, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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conn.ex_authorize_security_group_ingress(controller_security_group_id, 5672, 5672,
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group_pairs=[{'group_id': worker_security_group_id}], protocol='tcp')
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else:
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controller_security_group_id = get_security_group(conn, "control")
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if not get_security_group(conn, "services"):
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services_security_group_result = conn.ex_create_security_group('services', 'for DB and AMQP services only')
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services_security_group_id = services_security_group_result['group_id']
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conn.ex_authorize_security_group_ingress(services_security_group_id, 22, 22, cidr_ips=['0.0.0.0/0'],
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protocol='tcp')
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# conn.ex_authorize_security_group_ingress(services_security_group_id, 3306, 3306, cidr_ips=['0.0.0.0/0'],
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# group_pairs=[{'group_id': api_security_group_id}], protocol='tcp')
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conn.ex_authorize_security_group_ingress(services_security_group_id, 3306, 3306,
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group_pairs=[{'group_id': api_security_group_id}], protocol='tcp')
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conn.ex_authorize_security_group_ingress(services_security_group_id, 5672, 5672,
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group_pairs=[{'group_id': worker_security_group_id}], protocol='tcp')
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conn.ex_authorize_security_group_ingress(services_security_group_id, 5672, 5672,
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group_pairs=[{'group_id': api_security_group_id}], protocol='tcp')
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else:
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services_security_group_id = get_security_group(conn, "services")
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for security_group in conn.ex_list_security_groups():
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print(security_group)
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# get availability zones
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az = conn.list_locations()
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print(az)
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###########################################################################
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#
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# create app-services instance (database & messaging) (Amazon AWS EC2)
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#
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###########################################################################
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# https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh
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# is currently broken, hence the "rabbitctl" lines were added in the example
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# below, see also https://bugs.launchpad.net/faafo/+bug/1679710
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#
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# Thanks to Stefan Friedmann for finding this fix ;)
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userdata_service = '''#!/usr/bin/env bash
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curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
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-i database -i messaging
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rabbitmqctl add_user faafo guest
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rabbitmqctl set_user_tags faafo administrator
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rabbitmqctl set_permissions -p / faafo ".*" ".*" ".*"
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'''
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print('Starting new app-services instance and wait until it is running...')
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instance_services = conn.create_node(location=az[0],
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name='app-services',
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image=image,
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size=flavor,
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ex_keyname=keypair_name,
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ex_userdata=userdata_service,
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ex_security_groups=["services"])
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instance_services = conn.wait_until_running(nodes=[instance_services], timeout=timeout, ssh_interface='public_ips')
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services_ip = instance_services[0][0].private_ips[0]
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print(instance_services)
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###########################################################################
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#
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# create app-api instances (Amazon AWS EC2)
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#
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###########################################################################
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userdata_api = '''#!/usr/bin/env bash
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curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
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-i faafo -r api -m 'amqp://faafo:guest@%(services_ip)s:5672/' \
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-d 'mysql+pymysql://faafo:password@%(services_ip)s:3306/faafo'
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''' % {'services_ip': services_ip}
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print('Starting new app-api-1 instance and wait until it is running...')
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instance_api_1 = conn.create_node(location=az[0],
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name='app-api-1',
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image=image,
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size=flavor,
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ex_keyname=keypair_name,
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ex_userdata=userdata_api,
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ex_security_groups=["api"])
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print('Starting new app-api-2 instance and wait until it is running...')
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instance_api_2 = conn.create_node(location=az[1],
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name='app-api-2',
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image=image,
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size=flavor,
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ex_keyname=keypair_name,
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ex_userdata=userdata_api,
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ex_security_groups=["api"])
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instance_api_1 = conn.wait_until_running(nodes=[instance_api_1], timeout=timeout, ssh_interface='public_ips')
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api_1_ip = instance_api_1[0][0].private_ips[0]
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print("app-api-1 public ip: " + instance_api_1[0][1][0])
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instance_api_2 = conn.wait_until_running(nodes=[instance_api_2], timeout=timeout, ssh_interface='public_ips')
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# currently only api_1_ip is used
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api_2_ip = instance_api_2[0][0].private_ips[0]
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print("app-api-2 public ip: " + instance_api_2[0][1][0])
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###########################################################################
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#
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# create worker instances (Amazon AWS EC2)
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#
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###########################################################################
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userdata_worker = '''#!/usr/bin/env bash
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curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
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-i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
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''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip}
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# userdata_api-api-2 = '''#!/usr/bin/env bash
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# curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
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# -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://faafo:guest@%(services_ip)s:5672/'
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# ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip}
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print('Starting new app-worker-1 instance and wait until it is running...')
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instance_worker_1 = conn.create_node(location=az[0],
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name='app-worker-1',
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image=image, size=flavor,
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ex_keyname=keypair_name,
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ex_userdata=userdata_worker,
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ex_security_groups=["worker"])
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print('Starting new app-worker-2 instance and wait until it is running...')
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instance_worker_2 = conn.create_node(location=az[1],
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name='app-worker-2',
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image=image, size=flavor,
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ex_keyname=keypair_name,
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ex_userdata=userdata_worker,
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ex_security_groups=["worker"])
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# do not start worker 3 initially, can be started using scale-out-add-worker.py demo
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# print('Starting new app-worker-3 instance and wait until it is running...')
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# instance_worker_3 = conn.create_node(name='app-worker-3',
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# image=image, size=flavor,
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# networks=[network],
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# ex_keyname=keypair_name,
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# ex_userdata=userdata_worker,
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# ex_security_groups=[worker_security_group])
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print(instance_worker_1)
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print(instance_worker_2)
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# print(instance_worker_3)
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###########################################################################
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#
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# create load balancer (Amazon AWS ELB)
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#
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###########################################################################
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elb_provider = loadbalancer_get_driver(loadbalancer_Provider.ELB)
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elb_conn = elb_provider(aws_access_key_id,
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aws_secret_access_key,
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token=aws_session_token,
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region=region_name)
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print("Deleting previously created load balancers in: " + str(elb_conn.list_balancers()))
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for loadbalancer in elb_conn.list_balancers():
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if loadbalancer.name == "lb1":
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print("Deleting Load Balancer: " + str(loadbalancer))
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elb_conn.destroy_balancer(loadbalancer)
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# get suffix (a, b, c, ...) from all availability zones, available in the selected region
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all_availability_zones_in_region = []
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for az in conn.ex_list_availability_zones():
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all_availability_zones_in_region.append(az.name[-1])
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# create new load balancer
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# example uses "classic" ELB with default HTTP health. monitor, you can see the result in the EC2 console, after
|
|
# running this script
|
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new_load_balancer = elb_conn.create_balancer(
|
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name='lb1',
|
|
algorithm=Algorithm.ROUND_ROBIN,
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port=80,
|
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protocol='http',
|
|
members=[],
|
|
ex_members_availability_zones=all_availability_zones_in_region)
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|
|
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# attach api instances as members to load balancer
|
|
elb_conn.balancer_attach_compute_node(balancer=new_load_balancer, node=instance_api_1[0][0])
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elb_conn.balancer_attach_compute_node(balancer=new_load_balancer, node=instance_api_2[0][0])
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|
|
|
print("Created load balancer: " + str(new_load_balancer))
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|
|
|
# wait for the load balancer to be ready
|
|
while new_load_balancer.state != 2:
|
|
time.sleep(3)
|
|
new_load_balancer = elb_conn.get_balancer(new_load_balancer.id)
|
|
|
|
print("\n\nYou can see the instances created in EC2 in AWS Console. You'll also find the load balancer under ELB "
|
|
"there.\n"
|
|
" You can access the faafo application deployed to the loadbalancer at: http://" + new_load_balancer.ip +
|
|
" as soon as instances are detected to be deployed and healthy by the load balancer.")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|