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DisplayClusterInputDevice.cpp
demo3-microservice.py 10.84 KiB
# import getpass
# import os
from libcloud.compute.providers import get_driver
from libcloud.compute.types import Provider
# reqs:
# services: nova, glance, neutron
# resources: 2 instances, 2 floating ips (1 keypair, 2 security groups)
# 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
# web service endpoint of the private cloud infrastructure
auth_url = 'https://private-cloud.informatik.hs-fulda.de:5000'
# your username in OpenStack
auth_username = 'CloudComp' + str(group_number)
# your project in OpenStack
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"
# The public key to be used for SSH connection, please make sure, that you have the corresponding private key
#
# id_rsa.pub should look like this (standard sshd pubkey format):
# ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
keypair_name = 'srieger-pub'
pub_key_file = '~/.ssh/id_rsa.pub'
flavor_name = 'm1.small'
# default region
region_name = 'RegionOne'
# domain to use, "default" for local accounts, "hsfulda" for RZ LDAP, e.g., using fdaiXXXX as auth_username
domain_name = "default"
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:")
auth_password = "demo"
###########################################################################
#
# create connection
#
###########################################################################
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 == project_network:
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)
###########################################################################
#
# create security group dependency
#
###########################################################################
print('Checking for existing worker security group...')
security_group_name = 'worker'
security_group_exists = False
worker_security_group = ''
for security_group in conn.ex_list_security_groups():
if security_group.name == security_group_name:
worker_security_group = security_group
security_group_exists = True
if security_group_exists:
print('Worker Security Group ' + worker_security_group.name + ' already exists. Skipping creation.')
else:
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)
print('Checking for existing controller security group...')
security_group_name = 'control'
security_group_exists = False
controller_security_group = ''
for security_group in conn.ex_list_security_groups():
if security_group.name == security_group_name:
controller_security_group = security_group
security_group_exists = True
if security_group_exists:
print('Controller Security Group ' + controller_security_group.name + ' already exists. Skipping creation.')
else:
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)
for security_group in conn.ex_list_security_groups():
print(security_group)
###########################################################################
#
# create app-controller
#
###########################################################################
# https://git.openstack.org/cgit/openstack/faafo/plain/contrib/install.sh
# is currently broken, hence the "rabbitctl" lines were added in the example
# below, see also https://bugs.launchpad.net/faafo/+bug/1679710
#
# Thanks to Stefan Friedmann for finding this fix ;)
userdata = '''#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i messaging -i faafo -r api
rabbitmqctl add_user faafo guest
rabbitmqctl set_user_tags faafo administrator
rabbitmqctl set_permissions -p / faafo ".*" ".*" ".*"
'''
print('Starting new app-controller instance and wait until it is running...')
instance_controller_1 = conn.create_node(name='app-controller',
image=image,
size=flavor,
networks=[network],
ex_keyname=keypair_name,
ex_userdata=userdata,
ex_security_groups=[controller_security_group])
conn.wait_until_running(nodes=[instance_controller_1], timeout=120, ssh_interface='private_ips')
###########################################################################
#
# assign app-controller floating ip
#
###########################################################################
print('Checking for unused Floating IP...')
unused_floating_ip = None
for floating_ip in conn.ex_list_floating_ips():
if not floating_ip.node_id:
unused_floating_ip = floating_ip
break
if not unused_floating_ip:
pool = conn.ex_list_floating_ip_pools()[0]
print('Allocating new Floating IP from pool: {}'.format(pool))
unused_floating_ip = pool.create_floating_ip()
conn.ex_attach_floating_ip_to_node(instance_controller_1, unused_floating_ip)
print('Controller Application will be deployed to http://%s' % unused_floating_ip.ip_address)
###########################################################################
#
# getting id and ip address of app-controller instance
#
###########################################################################
# instance should not have a public ip? floating ips are assigned later
instance_controller_1 = conn.ex_get_node_details(instance_controller_1.id)
if instance_controller_1.public_ips:
ip_controller = instance_controller_1.public_ips[0]
else:
ip_controller = instance_controller_1.private_ips[0]
###########################################################################
#
# create app-worker-1
#
###########################################################################
userdata = '''#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i faafo -r worker -e 'http://%(ip_controller)s' -m 'amqp://faafo:guest@%(ip_controller)s:5672/'
''' % {'ip_controller': ip_controller}
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,
ex_security_groups=[worker_security_group])
conn.wait_until_running(nodes=[instance_worker_1], timeout=120, ssh_interface='private_ips')
###########################################################################
#
# assign app-worker floating ip
#
###########################################################################
print('Checking for unused Floating IP...')
unused_floating_ip = None
for floating_ip in conn.ex_list_floating_ips():
if not floating_ip.node_id:
unused_floating_ip = floating_ip
break
if not unused_floating_ip:
pool = conn.ex_list_floating_ip_pools()[0]
print('Allocating new Floating IP from pool: {}'.format(pool))
unused_floating_ip = pool.create_floating_ip()
conn.ex_attach_floating_ip_to_node(instance_worker_1, unused_floating_ip)
print('The worker will be available for SSH at %s' % unused_floating_ip.ip_address)
print('You can use ssh to login to the controller using your private key. After login, you can list available '
'fractals using "faafo list". To request the generation of new fractals, you can use "faafo create". '
'You can also see other options to use the faafo example cloud service using "faafo -h".')
if __name__ == '__main__':
main()