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# import getpass
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# import os
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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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# Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
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# project etc., as coordinated in the lab sessions)
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group_number = 30
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# web service endpoint of the private cloud infrastructure
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auth_url = 'https://private-cloud.informatik.hs-fulda.de:5000'
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# your username in OpenStack
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auth_username = 'CloudComp' + str(group_number)
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# your project in OpenStack
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project_name = 'CloudComp' + str(group_number)
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# A network in the project the started instance will be attached to
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project_network = 'CloudComp' + str(group_number) + '-net'
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# The image to look for and use for the started instance
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ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
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# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
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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 = 'CloudComp30-keypair'
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pub_key_file = '~/.ssh/id_rsa.pub'
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flavor_name = 'm1.small'
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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 RZ LDAP, e.g., using fdaiXXXX as auth_username
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# domain_name = "default"
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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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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 == 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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# create security group dependency
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#
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###########################################################################
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print('Checking for existing security group...')
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security_group_name = 'all-in-one'
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security_group_exists = False
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all_in_one_security_group = ''
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for security_group in conn.ex_list_security_groups():
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if security_group.name == security_group_name:
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all_in_one_security_group = security_group
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security_group_exists = True
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if security_group_exists:
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print(('Security Group ' + all_in_one_security_group.name + ' already exists. Skipping creation.'))
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else:
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all_in_one_security_group = conn.ex_create_security_group(security_group_name,
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'network access for all-in-one application.')
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conn.ex_create_security_group_rule(all_in_one_security_group, 'TCP', 80, 80)
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conn.ex_create_security_group_rule(all_in_one_security_group, 'TCP', 22, 22)
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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 all-in-one instance
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#
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###########################################################################
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userdata = '''#!/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 -i messaging -r api -r worker -r demo
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'''
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print('Checking for existing instance...')
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instance_name = 'all-in-one'
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instance_exists = False
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testing_instance = ''
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for instance in conn.list_nodes():
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if instance.name == instance_name:
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testing_instance = instance
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instance_exists = True
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if instance_exists:
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print(('Instance ' + testing_instance.name + ' already exists. Skipping creation.'))
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exit()
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else:
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print('Starting new all-in-one instance and wait until it is running...')
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testing_instance = conn.create_node(name=instance_name,
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image=image,
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size=flavor,
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networks=[network],
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ex_keyname=keypair_name,
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ex_userdata=userdata,
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ex_security_groups=[all_in_one_security_group])
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conn.wait_until_running(nodes=[testing_instance], timeout=120, ssh_interface='private_ips')
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###########################################################################
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#
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# assign all-in-one instance floating ip
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#
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###########################################################################
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private_ip = None
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if len(testing_instance.private_ips):
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private_ip = testing_instance.private_ips[0]
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print(('Private IP found: {}'.format(private_ip)))
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public_ip = None
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if len(testing_instance.public_ips):
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public_ip = testing_instance.public_ips[0]
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print(('Public IP found: {}'.format(public_ip)))
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print('Checking for unused Floating IP...')
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unused_floating_ip = None
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for floating_ip in conn.ex_list_floating_ips():
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if not floating_ip.node_id:
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unused_floating_ip = floating_ip
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break
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if not unused_floating_ip and len(conn.ex_list_floating_ip_pools()):
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pool = conn.ex_list_floating_ip_pools()[0]
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print(('Allocating new Floating IP from pool: {}'.format(pool)))
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unused_floating_ip = pool.create_floating_ip()
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if public_ip:
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print(('Instance ' + testing_instance.name + ' already has a public ip. Skipping attachment.'))
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elif unused_floating_ip:
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conn.ex_attach_floating_ip_to_node(testing_instance, unused_floating_ip)
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actual_ip_address = None
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if public_ip:
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actual_ip_address = public_ip
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elif unused_floating_ip:
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actual_ip_address = unused_floating_ip.ip_address
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elif private_ip:
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actual_ip_address = private_ip
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print('\n')
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print(('The Fractals app will be deployed to http://{}\n'.format(actual_ip_address)))
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print('You can use ssh to login to the instance using your private key. Default user name for official Ubuntu\n'
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'Cloud Images is: ubuntu, so you can use, e.g.: "ssh -i ~/.ssh/id_rsa ubuntu@<floating-ip>" if your private\n'
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'key is in the default location.\n\n'
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'After login, you can list or "ssh ubuntu@<floating-ip>" available fractals using "faafo list". To request\n'
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'the generation of new fractals, you can use "faafo create".\n\n'
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'You can also see other options to use the faafo example cloud service using "faafo -h".\n\n'
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'If you cannot start faafo command and/or do not see the webpage, you can check the Instance Console Log of\n'
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'the instance, e.g., in OpenStack web interface.')
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if __name__ == '__main__':
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main()
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Sebastian Rieger