import getpass import os import libcloud.security import time from libcloud.compute.providers import get_driver from libcloud.compute.types import Provider # reqs: # services: nova, glance, neutron # resources: 2 instances (m1.small), 2 floating ips (1 keypair, 2 security groups) # Please use 1-25 for X in username, project etc., as coordinated in the lab sessions # web service endpoint of the private cloud infrastructure auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000' # your username in OpenStack auth_username = 'CloudCompX' # your project in OpenStack project_name = 'CloudCompGrpX' # default region region_name = 'RegionOne' # domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username domain_name = "default" ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image" flavor_name = 'm1.small' network_name = "ai-netlab-pro-net" keypair_name = 'srieger-pub' pub_key_file = '~/.ssh/id_rsa.pub' def main(): ########################################################################### # # get credentials # ########################################################################### if "OS_PASSWORD" in os.environ: auth_password = os.environ["OS_PASSWORD"] else: auth_password = getpass.getpass("Enter your OpenStack password:") ########################################################################### # # create connection # ########################################################################### libcloud.security.VERIFY_SSL_CERT = False provider = get_driver(Provider.OPENSTACK) conn = provider(auth_username, auth_password, ex_force_auth_url=auth_url, ex_force_auth_version='3.x_password', ex_tenant_name=project_name, ex_force_service_region=region_name, ex_domain_name=domain_name) ########################################################################### # # get image, flavor, network for instance creation # ########################################################################### images = conn.list_images() image = '' for img in images: if img.name == ubuntu_image_name: image = img flavors = conn.list_sizes() flavor = '' for flav in flavors: if flav.name == flavor_name: flavor = conn.ex_get_size(flav.id) networks = conn.ex_list_networks() network = '' for net in networks: if net.name == network_name: network = net ########################################################################### # # create keypair dependency # ########################################################################### print('Checking for existing SSH key pair...') keypair_exists = False for keypair in conn.list_key_pairs(): if keypair.name == keypair_name: keypair_exists = True if keypair_exists: print('Keypair ' + keypair_name + ' already exists. Skipping import.') else: print('adding keypair...') conn.import_key_pair_from_file(keypair_name, pub_key_file) for keypair in conn.list_key_pairs(): print(keypair) ########################################################################### # # clean up resources from previous demos # ########################################################################### # destroy running demo instances 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) conn.destroy_node(instance) # wait until all nodes are destroyed to be able to remove depended security groups nodes_still_running = True while nodes_still_running: nodes_still_running = False time.sleep(3) instances = conn.list_nodes() for instance in instances: # if we see any demo instances still running continue to wait for them to stop if instance.name in ['all-in-one', 'app-worker-1', 'app-worker-2', 'app-controller']: nodes_still_running = True print('There are still instances running, waiting for them to be destroyed...') # 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) conn.ex_delete_security_group(group) ########################################################################### # # create security group dependency # ########################################################################### 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...') 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.') return worker_security_group return False if not get_security_group(conn, "api"): api_security_group = conn.ex_create_security_group('api', 'for API services only') conn.ex_create_security_group_rule(api_security_group, 'TCP', 80, 80) conn.ex_create_security_group_rule(api_security_group, 'TCP', 22, 22) else: api_security_group = get_security_group(conn, "api") if not get_security_group(conn, "worker"): 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) else: worker_security_group = get_security_group(conn, "worker") if not get_security_group(conn, "control"): 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) conn.ex_create_security_group_rule(controller_security_group, 'TCP', 80, 80) conn.ex_create_security_group_rule(controller_security_group, 'TCP', 5672, 5672, source_security_group=worker_security_group) if not get_security_group(conn, "services"): services_security_group = conn.ex_create_security_group('services', 'for DB and AMQP services only') conn.ex_create_security_group_rule(services_security_group, 'TCP', 22, 22) conn.ex_create_security_group_rule(services_security_group, 'TCP', 3306, 3306, source_security_group=api_security_group) conn.ex_create_security_group_rule(services_security_group, 'TCP', 5672, 5672, source_security_group=worker_security_group) conn.ex_create_security_group_rule(services_security_group, 'TCP', 5672, 5672, source_security_group=api_security_group) else: services_security_group = get_security_group(conn, "services") for security_group in conn.ex_list_security_groups(): print(security_group) ########################################################################### # # get floating ip helper function # ########################################################################### def get_floating_ip(connection): """A helper function to re-use available Floating IPs""" unused_floating_ip = None for float_ip in connection.ex_list_floating_ips(): if not float_ip.node_id: unused_floating_ip = float_ip break if not unused_floating_ip: pool = connection.ex_list_floating_ip_pools()[0] unused_floating_ip = pool.create_floating_ip() return unused_floating_ip ########################################################################### # # create app-services instance (database & messaging) # ########################################################################### userdata = '''#!/usr/bin/env bash curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \ -i database -i messaging ''' print('Starting new app-services instance and wait until it is running...') instance_services = conn.create_node(name='app-services', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata, ex_security_groups=[services_security_group]) instance_services = conn.wait_until_running(nodes=[instance_services], timeout=120, ssh_interface='private_ips')[0][0] services_ip = instance_services.private_ips[0] ########################################################################### # # create app-api instances # ########################################################################### userdata = '''#!/usr/bin/env bash curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \ -i faafo -r api -m 'amqp://guest:guest@%(services_ip)s:5672/' \ -d 'mysql+pymysql://faafo:password@%(services_ip)s:3306/faafo' ''' % {'services_ip': services_ip} print('Starting new app-api-1 instance and wait until it is running...') instance_api_1 = conn.create_node(name='app-api-1', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata, ex_security_groups=[api_security_group]) print('Starting new app-api-2 instance and wait until it is running...') instance_api_2 = conn.create_node(name='app-api-2', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata, ex_security_groups=[api_security_group]) instance_api_1 = conn.wait_until_running(nodes=[instance_api_1], timeout=120, ssh_interface='private_ips')[0][0] api_1_ip = instance_api_1.private_ips[0] instance_api_2 = conn.wait_until_running(nodes=[instance_api_2], timeout=120, ssh_interface='private_ips')[0][0] # api_2_ip = instance_api_2.private_ips[0] 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}) ########################################################################### # # create worker instances # ########################################################################### userdata_api_1 = '''#!/usr/bin/env bash curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \ -i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/' ''' % {'api_1_ip': api_1_ip, 'services_ip': services_ip} # userdata-api-2 = '''#!/usr/bin/env bash # curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \ # -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://guest:guest@%(services_ip)s:5672/' # ''' % {'api_2_ip': api_2_ip, 'services_ip': services_ip} print('Starting new app-worker-1 instance and wait until it is running...') instance_worker_1 = conn.create_node(name='app-worker-1', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata_api_1, ex_security_groups=[worker_security_group]) print('Starting new app-worker-1 instance and wait until it is running...') instance_worker_2 = conn.create_node(name='app-worker-2', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata_api_1, ex_security_groups=[worker_security_group]) print('Starting new app-worker-1 instance and wait until it is running...') instance_worker_3 = conn.create_node(name='app-worker-3', image=image, size=flavor, networks=[network], ex_keyname=keypair_name, ex_userdata=userdata_api_1, ex_security_groups=[worker_security_group]) print(instance_worker_1) print(instance_worker_2) print(instance_worker_3) if __name__ == '__main__': main()