180 lines
6.5 KiB
Python
180 lines
6.5 KiB
Python
# 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.providers import get_driver
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from libcloud.compute.types import Provider
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# reqs:
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# services: nova, glance, neutron
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# resources: 2 instances (m1.small), 2 floating ips (1 keypair, 2 security groups)
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# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions
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# web service endpoint of the private cloud infrastructure
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auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
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# your username in OpenStack
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auth_username = 'CloudCompX'
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# your project in OpenStack
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project_name = 'CloudCompGrpX'
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# default region
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region_name = 'RegionOne'
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# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
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domain_name = "default"
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ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
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#ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
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flavor_name = 'm1.small'
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network_name = "CloudCompGrpX-net"
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keypair_name = 'srieger-pub'
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pub_key_file = '~/.ssh/id_rsa.pub'
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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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# if "OS_PASSWORD" in os.environ:
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# auth_password = os.environ["OS_PASSWORD"]
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# else:
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# auth_password = getpass.getpass("Enter your OpenStack password:")
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auth_password = "demo"
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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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# libcloud.security.VERIFY_SSL_CERT = False
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provider = get_driver(Provider.OPENSTACK)
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conn = provider(auth_username,
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auth_password,
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ex_force_auth_url=auth_url,
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ex_force_auth_version='3.x_password',
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ex_tenant_name=project_name,
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ex_force_service_region=region_name,
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ex_domain_name=domain_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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images = conn.list_images()
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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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image = img
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flavors = conn.list_sizes()
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flavor = ''
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for flav in flavors:
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if flav.name == flavor_name:
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flavor = conn.ex_get_size(flav.id)
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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 == network_name:
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network = net
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###########################################################################
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#
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# get fixed a ip for serivice and api instance
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# (better would be shared IP for the cluster etc.)
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#
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###########################################################################
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# find service instance
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for instance in conn.list_nodes():
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if instance.name == 'app-services':
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services_ip = instance.private_ips[0]
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print('Found app-services fixed IP to be: ', services_ip)
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if instance.name == 'app-api-1':
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api_1_ip = instance.private_ips[0]
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print('Found app-api-1 fixed IP to be: ', api_1_ip)
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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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# 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.name == security_group_name:
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print('Security Group ' + security_group_name + ' already exists. Skipping creation.')
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return security_grp
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return False
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if not get_security_group(conn, "worker"):
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worker_security_group = conn.ex_create_security_group('worker', 'for services that run on a worker node')
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conn.ex_create_security_group_rule(worker_security_group, 'TCP', 22, 22)
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else:
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worker_security_group = get_security_group(conn, "worker")
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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 worker instances
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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://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
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-i faafo -r worker -e 'http://%(api_1_ip)s' -m 'amqp://guest: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-2 = '''#!/usr/bin/env bash
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# curl -L -s https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh | bash -s -- \
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# -i faafo -r worker -e 'http://%(api_2_ip)s' -m 'amqp://guest: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-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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if __name__ == '__main__':
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main()
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