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382 lines
18 KiB
382 lines
18 KiB
# import getpass
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# import os
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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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# reqs:
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# services: EC2 (nova, glance, neutron)
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# resources: 2 instances, 2 elastic ips (1 keypair, 2 security groups)
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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-20200408'
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ubuntu_image_id = "ami-085925f297f89fce1" # local ami id for resent ubuntu 18.04 20200408 in us-west-1
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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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#
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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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keypair_name = 'srieger-pub'
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pub_key_file = '~/.ssh/id_rsa.pub'
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flavor_name = 't2.nano'
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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 Educate only allows us-east-1 see our AWS classroom at https://www.awseducate.com
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# e.g., https://www.awseducate.com/student/s/launch-classroom?classroomId=a1v3m000005mNm6AAE
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region_name = 'us-east-1'
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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 Educate classroom, Account Details
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# access_id = getpass.win_getpass("Enter your access_id:")
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# secret_key = getpass.win_getpass("Enter your secret_key:")
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# session_token = getpass.win_getpass("Enter your session_token:")
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# access_id = "ASIAU..."
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# secret_key = "7lafW..."
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# session_token = "IQoJb3JpZ...EMb//..."
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access_id = "ASIA..."
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secret_key = "76lAj..."
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session_token = "IQoJ..."
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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=access_id,
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secret=secret_key,
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token=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("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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# images = conn.list_images()
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# fetch/select the image referenced with ubuntu_image_name above
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# image = [i for i in images if i.name == ubuntu_image_name][0]
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# print(image)
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# selecting the image based on defined AMI id
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image = NodeImage(id=ubuntu_image_id, name=None, driver=conn)
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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 depended 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-controller', 'app-services']:
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if instance.state is not NodeState.TERMINATED:
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nodes_still_running = True
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print('There are still instances running, waiting for them to be destroyed...')
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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, 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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###########################################################################
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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(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=120, ssh_interface='public_ips')
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services_ip = instance_services[0][0].private_ips[0]
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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(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(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=120, ssh_interface='public_ips')
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api_1_ip = instance_api_1[0][0].private_ips[0]
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instance_api_2 = conn.wait_until_running(nodes=[instance_api_2], timeout=120, ssh_interface='public_ips')
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api_2_ip = instance_api_2[0][0].private_ips[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(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(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(access_id,
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secret_key,
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token=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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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
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# running this script
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new_load_balancer = elb_conn.create_balancer(
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name='lb1',
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algorithm=Algorithm.ROUND_ROBIN,
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port=80,
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protocol='http',
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members=[],
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ex_members_availability_zones=all_availability_zones_in_region)
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# attach api instances as members to load balancer
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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
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while new_load_balancer.state != 2:
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time.sleep(3)
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new_load_balancer = elb_conn.get_balancer(new_load_balancer.id)
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print("\n\nYou can see the instances created in EC2 in AWS Console. You'll also find the load balancer under ELB "
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"there.\n"
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" You can access the faafo application deployed to the loadbalancer at: http://" + new_load_balancer.ip +
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" as soon as instances are detected to be deployed and healthy by the load balancer.")
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if __name__ == '__main__':
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main()
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