Michał Smereczyński | Cloudeon ASCloud Solution Architect

Aplikacje Python na platformie Microsoft Azurei platforma Microsoft Azure w aplikacjach Python

@smereczynskihttps://lnx.azurewebites.net

Michał Smereczyński

Linux GuyDevOps(czasami) DevArchitektKonsultant

Aplikacje Python na platformie Microsoft Azure

Opcje:IaaS VM Linux WindowsPaaS WebApp Windows Linux Service Fabric Guest exec Container Container Services DC/OS Swarm Kubernetes

PaaS WebApp Windows Linux

PaaS WebApp Windows

WSGI

Projekt

app.pyrequirements.txtruntime.txtweb.configptvs_virtualenv_proxy.py

WSGI HandlerPackage ManagementVirtual Env + Python versionApp + Server configVirtual Environment Proxy

App.py

def wsgi_app(environ, start_response): status = '200 OK’ response_headers = [('Content-type', 'text/plain')] start_response(status, response_headers) response_body = 'Hello World’ yield response_body.encode()

if __name__ == '__main__': from wsgiref.simple_server import make_server httpd = make_server('localhost', 5555, wsgi_app) httpd.serve_forever()

requirements.txt

flask<1requests==2.12.3

runtime.txt

python-3.4

web.config <?xml version="1.0"?><configuration> <appSettings> <add key="WSGI_ALT_VIRTUALENV_HANDLER" value="app.wsgi_app" /> <add key="WSGI_ALT_VIRTUALENV_ACTIVATE_THIS" value="D:\home\site\wwwroot\env\Scripts\python.exe" /> <add key="WSGI_HANDLER" value="ptvs_virtualenv_proxy.get_venv_handler()" /> <add key="PYTHONPATH" value="D:\home\site\wwwroot" /> </appSettings> <system.webServer> <modules runAllManagedModulesForAllRequests="true" /> <handlers> <remove name="Python27_via_FastCGI" /> <remove name="Python34_via_FastCGI" /> <add name="Python FastCGI" path="handler.fcgi" verb="*" modules="FastCgiModule" scriptProcessor="D:\Python34\python.exe|D:\Python34\Scripts\wfastcgi.py" resourceType="Unspecified" requireAccess="Script" /> </handlers> </system.webServer></configuration>

ptvs_virtualenv_proxy.py

„The following script is used to retrieve the WSGI handler, activate the virtual environment and log errors. It is designed to be generic and used without modifications.”

Wdrożenie

push

1. KuduSync 2. Select Python version 3. Create virtual environment

4. Install packages5. Copy web.config6. Django collectstatic

aplikacja.azurewebsites.net

DEMO

Platforma Microsoft Azure w aplikacjach Python

Azure Resource Manager

CONSISTENT MANAGEMENT LAYER

AZURE RESOURCE MANAGER API

Azure SDK for Pythonhttps://github.com/Azure/azure-sdk-for-python

pip install azure

from azure.mgmt.common import SubscriptionCloudCredentialsimport azure.mgmt.computeimport azure.mgmt.networkimport azure.mgmt.resourceimport azure.mgmt.storage

import requests

def get_token_from_client_credentials(endpoint, client_id, client_secret): payload = { 'grant_type': 'client_credentials', 'client_id': client_id, 'client_secret': client_secret, 'resource': 'https://management.core.windows.net/' } response = requests.post(endpoint, data=payload).json() return response['access_token']

auth_token = get_token_from_client_credentials( endpoint='https://login.microsoftonline.com/160012ea-8f27-427f-9d00-030d66b90d0f/oauth2/token', client_id='47bb44d3-c6da-4974-9df8-88598a10eb55', client_secret='ijoijoufo2')

subscription_id = '420288c3-b6f0-45e4-a3f6-e70fe2c18f50'creds = SubscriptionCloudCredentials(subscription_id, auth_token)

result = compute_client.virtual_machines.create_or_update( GROUP_NAME, azure.mgmt.compute.VirtualMachine( location=REGION, name=VM_NAME, os_profile=azure.mgmt.compute.OSProfile( admin_username=ADMIN_USERNAME, admin_password=ADMIN_PASSWORD, computer_name=COMPUTER_NAME, ), hardware_profile=azure.mgmt.compute.HardwareProfile( virtual_machine_size=azure.mgmt.compute.VirtualMachineSizeTypes.standard_a0 ), network_profile=azure.mgmt.compute.NetworkProfile( network_interfaces=[ azure.mgmt.compute.NetworkInterfaceReference( reference_uri=nic_id, ), ], ), storage_profile=azure.mgmt.compute.StorageProfile( os_disk=azure.mgmt.compute.OSDisk( caching=azure.mgmt.compute.CachingTypes.none, create_option=azure.mgmt.compute.DiskCreateOptionTypes.from_image, name=OS_DISK_NAME, virtual_hard_disk=azure.mgmt.compute.VirtualHardDisk( uri='https://{0}.blob.core.windows.net/vhds/{1}.vhd'.format( STORAGE_NAME, OS_DISK_NAME, ), ), ), image_reference = azure.mgmt.compute.ImageReference( publisher=IMAGE_PUBLISHER, offer=IMAGE_OFFER, sku=IMAGE_SKU, version=IMAGE_VERSION, ), ), ),)

TWO

RZENIE VM

result = network_client.public_ip_addresses.get(GROUP_NAME, PUBLIC_IP_NAME)print('VM available at {}'.format(result.public_ip_address.ip_address))

Zasoby jako obiekty

DEMO