You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
307 lines
12 KiB
307 lines
12 KiB
"""Example for Cloud Computing Course Master AI / GSD"""
|
|
|
|
# This script demonstrates how to use libcloud to start an instance in an OpenStack environment.
|
|
# The script will create start multiple instances splitting up the faafo monolithic application into
|
|
# a (minimalistic but already scalable) microservice architecture.
|
|
# Also introduces the concept of different security groups and corresponding frontend/backend
|
|
# separation.
|
|
|
|
# Needed if the password should be prompted for:
|
|
# import getpass
|
|
import os
|
|
import sys
|
|
|
|
from libcloud.compute.providers import get_driver
|
|
from libcloud.compute.types import Provider
|
|
|
|
# For our new Charmed OpenStack private cloud, we need to specify the path to the root
|
|
# CA certificate
|
|
import libcloud.security
|
|
libcloud.security.CA_CERTS_PATH = ['./root-ca.crt']
|
|
# Disable SSL certificate verification (not recommended for production)
|
|
# libcloud.security.VERIFY_SSL_CERT = False
|
|
|
|
# Please use 1-29 as environment variable GROUP_NUMBER to specify your group number.
|
|
# (will be used for the username, project etc., as coordinated in the lab sessions)
|
|
|
|
group_number = os.environ.get('GROUP_NUMBER')
|
|
if group_number is None:
|
|
sys.exit('Please set the GROUP_NUMBER environment variable to your group number,\n'
|
|
'e.g., on Windows:\n'
|
|
' "$env:GROUP_NUMBER=0" or "set GROUP_NUMBER=0"\n'
|
|
'or on Linux/MacOS:\n'
|
|
' "export GROUP_NUMBER=0" or "set GROUP_NUMBER=0"')
|
|
|
|
|
|
# web service endpoint of the private cloud infrastructure
|
|
# auth_url = 'https://private-cloud.informatik.hs-fulda.de:5000'
|
|
AUTH_URL = 'https://10.32.4.182:5000'
|
|
# auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
|
|
# your username in OpenStack
|
|
AUTH_USERNAME = 'CloudComp' + str(group_number)
|
|
print(f'Using username: {AUTH_USERNAME}\n')
|
|
# 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"
|
|
UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
|
|
|
|
# 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, formerly "hsfulda" for LDAP accounts etc.
|
|
# domain_name = "default"
|
|
|
|
|
|
def main(): # noqa: C901 pylint: disable=too-many-branches,too-many-statements,too-many-locals,missing-function-docstring
|
|
###########################################################################
|
|
#
|
|
# 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
|
|
#
|
|
###########################################################################
|
|
|
|
userdata = '#!/usr/bin/env bash\n' \
|
|
'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\n'
|
|
print('\nUsing cloud-init userdata for controller:\n"' + userdata + '"\n')
|
|
|
|
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(f'Allocating new Floating IP from pool: {pool}')
|
|
unused_floating_ip = pool.create_floating_ip()
|
|
|
|
conn.ex_attach_floating_ip_to_node(instance_controller_1, unused_floating_ip)
|
|
print(f'Controller Application will be deployed to http://{unused_floating_ip.ip_address}')
|
|
actual_ip_address = 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)
|
|
ip_controller = ''
|
|
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\n' \
|
|
'curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-' \
|
|
'examples/raw/master/faafo/contrib/install.sh | bash -s -- ' \
|
|
f'-i faafo -r worker -e "http://{ip_controller}" -m "amqp://faafo:guest@' \
|
|
f'{ip_controller}:5672/"\n'
|
|
print('\nUsing cloud-init userdata for worker:\n"' + userdata + '"\n')
|
|
|
|
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(f'Allocating new Floating IP from pool: {pool}')
|
|
unused_floating_ip = pool.create_floating_ip()
|
|
|
|
conn.ex_attach_floating_ip_to_node(instance_worker_1, unused_floating_ip)
|
|
print(f'The worker will be available for SSH at {unused_floating_ip.ip_address}')
|
|
|
|
print('\n\n#### Deployment finished\n\n')
|
|
print('After some minutes, as soon as cloud-init installed required packages and the\n'
|
|
'faafo app, (First App Application For OpenStack) fractals demo will be available\n'
|
|
f'at http://{actual_ip_address}\n')
|
|
|
|
print('You can use ssh to login to the controller using your private key.\n'
|
|
f'E.g., "ssh -i ~/.ssh/id_rsa ubuntu@{actual_ip_address}". After login,\n'
|
|
'you can list available fractals using "faafo list". To request the generation of\n'
|
|
'new fractals, you can use "faafo create". \n'
|
|
'You can also see other options to use the faafo example cloud service using '
|
|
'"faafo -h".')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|