KonfHub; Azure Developer Stories

1. Python Azure Functions
Azure Developer Stories
KonfHub
@dhilipsiva

2. 10 years of experience in Python, JavaScript,
DevOps & more
Optimistic Nihilist.
Wannabe Astrophysicist.
I code for fun & pro t.
I love Science, Python, FOSS & tness.
Dad of 2. Environmentalist. Story Teller. Gamer.
Jack of all trades & Master of none
http://dhilipsiva.com
dhilipsiva@gmail.com

3. I have no idea what I am
talking about

4. Azure Functions
Event-driven serverless compute platform
On-demand service
Provides a continually-updated infrastructure
You can build web APIs, respond to database
changes, process IoT streams, manage message
queues, and more.
Only worry about our app and not infrastructure
Automatically scales

5. Supported Languages
Python
C#
Go
Java
JavaScript / TypeScript
PowerShell
Rust
Any other Language (Custom Image + PowerShell)

6. Deployment Approaches
1. Commandline
2. VS Code (with an of cial azure plugin)
I will be taking the command line approach on my
Debian machine as it's easier for me. So the rest of
the talk will use this method.
If you are someone who likes to use GUI tools, you
should probably opt for VS Code approach:
https://docs.microsoft.com/en-us/azure/azure-
functions/create- rst-function-vs-code-python

7. Prerequisites
Azure Account : https://portal.azure.com/
Azure Functions Core Tools : Used for creating
projects & apps, testing Functions locally,
deploying, logs, etc.
Azure CLI : For managing Azure Cloud Reources
Python 3.8 (or 3.7, 3.6) : Azure only supports
Python 3.x

8. Azure Functions Core Tools
Install the Microsoft package repository GPG key
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dea
sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
Set up the APT source
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/
Install the Core Tools package ( func binary)
sudo apt-get update
sudo apt-get install azure-functions-core-tools-3

9. Azure CLI ( az binary)
Install using a script (maintained by Azure team)
curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
Azure Login
az login
If you want to list available locations
az account list-locations

10. Alternative installs
Azure Functions Core tools:
https://docs.microsoft.com/en-us/azure/azure-
functions/functions-run-local
Azure CLI: https://docs.microsoft.com/en-
us/cli/azure/install-azure-cli-linux

11. Creating Project and Apps
Create Project
func init $PROJECT_NAME --python
Create Function
func new
--name $FUNCTION_NAME
--template "HTTP trigger"
--authlevel "anonymous"
Run locally
func start

12. Creating Azure Resources
Create Resource Group
az group create
--name $GROUP_NAME
--location $LOCATION_NAME
General-purpose storage account
az storage account create
--name $STORAGE_NAME
--location $LOCATION_NAME
--resource-group $GROUP_NAME
--sku Standard_LRS

13. Creating Resources (contd.)
Create the function app in Azure
az functionapp create
--resource-group $GROUP_NAME
--consumption-plan-location $LOCATION_NAME
--runtime python
--runtime-version 3.8
--functions-version 3
--name $APP_NAME
--storage-account $STORAGE_NAME
--os-type linux

14. Deploy
func azure functionapp publish $APP_NAME
Logs
func azure functionapp logstream $APP_NAME --browser

15. Delete Azure Resources
az group delete --name $GROUP_NAME

16. Thanks!
dhilipsiva@pm.me
http://dhilipsiva.com
https://github.com/dhilipsiva/talks
http://www.slideshare.net/dhilipsiva
Source Code: https://github.com/reckonsys/python-
azure-functions-demo
Questions