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updated demo1

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Sebastian Rieger 2020-04-21 15:47:51 +02:00
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demo1-getting-started.py
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@ -1,34 +1,43 @@
# Example for Cloud Computing Course Master AI / GSD # Example for Cloud Computing Course Master AI / GSD
# #
# based on the tutorial: https://developer.openstack.org/firstapp-libcloud/
# uses libCloud: https://libcloud.apache.org/ # uses libCloud: https://libcloud.apache.org/
# libCloud API documentation: https://libcloud.readthedocs.io/en/latest/ # libCloud API documentation: https://libcloud.readthedocs.io/en/latest/
# OpenStack API documentation: https://developer.openstack.org/ # OpenStack API documentation: https://developer.openstack.org/
# this code was initially based on the former tutorial: https://developer.openstack.org/firstapp-libcloud/
import getpass import getpass
from libcloud.compute.providers import get_driver from libcloud.compute.providers import get_driver
from libcloud.compute.types import Provider from libcloud.compute.types import Provider
# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions # Please use 1-29 for X in the following variable to specify your group number. (will be used for the username,
# project etc., as coordinated in the lab sessions)
group_number = 30
########################################################################################################################
#
# no changes necessary below this line
#
########################################################################################################################
# web service endpoint of the private cloud infrastructure # web service endpoint of the private cloud infrastructure
auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000' auth_url = 'https://private-cloud.informatik.hs-fulda.de:5000'
# your username in OpenStack # your username in OpenStack
auth_username = 'CloudCompX' auth_username = 'CloudComp' + str(group_number)
# your project in OpenStack # your project in OpenStack
project_name = 'CloudCompGrpX' project_name = 'CloudComp' + str(group_number)
# A network in the project the started instance will be attached to
project_network = 'CloudComp' + str(group_number) + '-net'
# The image to look for and use for the started instance
ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
# default region # default region
region_name = 'RegionOne' region_name = 'RegionOne'
# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username # domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
domain_name = "default" domain_name = "default"
# The image to look for and use for the started instance
ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
# A network in the project the started instance will be attached to
project_network = "CloudCompGrpX-net"
def main(): def main():
# get the password from user # get the password from user
@ -39,6 +48,9 @@ def main():
# make sure to include ex_domain_name and ex_force_auth_version='3.x_password', as they are needed in our # make sure to include ex_domain_name and ex_force_auth_version='3.x_password', as they are needed in our
# environment # environment
provider = get_driver(Provider.OPENSTACK) provider = get_driver(Provider.OPENSTACK)
print("Opening connection to %s as %s..." % (auth_url, auth_username))
conn = provider(auth_username, conn = provider(auth_username,
auth_password, auth_password,
ex_force_auth_url=auth_url, ex_force_auth_url=auth_url,
@ -47,6 +59,9 @@ def main():
ex_force_service_region=region_name, ex_force_service_region=region_name,
ex_domain_name=domain_name) ex_domain_name=domain_name)
print("Getting images and selecting desired one...")
print("=========================================================================")
# get a list of images offered in the cloud context (e.g. Ubuntu 14.04, Ubuntu 16.04, cirros, ...) # get a list of images offered in the cloud context (e.g. Ubuntu 14.04, Ubuntu 16.04, cirros, ...)
images = conn.list_images() images = conn.list_images()
image = '' image = ''
@ -55,16 +70,25 @@ def main():
image = img image = img
print(img) print(img)
print("Getting flavors...")
print("=========================================================================")
# get a list of flavors offered in the cloud context (e.g. m1.small, m1.medium, ...) # get a list of flavors offered in the cloud context (e.g. m1.small, m1.medium, ...)
flavors = conn.list_sizes() flavors = conn.list_sizes()
for flavor in flavors: for flavor in flavors:
print(flavor) print(flavor)
print("Selecting desired flavor...")
print("=========================================================================")
# get the flavor with id 2 # get the flavor with id 2
flavor_id = '2' flavor_id = '2'
flavor = conn.ex_get_size(flavor_id) flavor = conn.ex_get_size(flavor_id)
print(flavor) print(flavor)
print("Selecting desired network...")
print("=========================================================================")
# get a list of networks in the cloud context # get a list of networks in the cloud context
networks = conn.ex_list_networks() networks = conn.ex_list_networks()
network = '' network = ''
@ -72,17 +96,26 @@ def main():
if net.name == project_network: if net.name == project_network:
network = net network = net
print("Create instance 'testing'...")
print("=========================================================================")
# create a new instance with the name "testing" # create a new instance with the name "testing"
# make sure to provide networks (networks={network}) the instance should be attached to # make sure to provide networks (networks={network}) the instance should be attached to
instance_name = 'testing' instance_name = 'testing'
testing_instance = conn.create_node(name=instance_name, image=image, size=flavor, networks={network}) testing_instance = conn.create_node(name=instance_name, image=image, size=flavor, networks={network})
print(testing_instance) print(testing_instance)
print("Showing all running instances...")
print("=========================================================================")
# show all instances (running nodes) in the cloud context # show all instances (running nodes) in the cloud context
instances = conn.list_nodes() instances = conn.list_nodes()
for instance in instances: for instance in instances:
print(instance) print(instance)
print("Destroying instance...")
print("=========================================================================")
# destroy the instance we have just created # destroy the instance we have just created
conn.destroy_node(testing_instance) conn.destroy_node(testing_instance)