Create multiple functions in one Azure Function App

Question

I want to create multiple python Azure Functions within one Azure Functions App using the azure cli/core tools. One http triggered function and one blob triggered function.

I have the following folder structure:

├── azure-functions
│   ├── az-func-blob
│   │   ├── .python_packages
│   │   ├── .vscode
│   │   ├── .gitignore
│   │   ├── function_app.py
│   │   ├── host.json
│   │   ├── local_settings.json
│   │   ├── requirements.txt
│   ├── az-func-http
│   │   ├── .python_packages
│   │   ├── .vscode
│   │   ├── .gitignore
│   │   ├── function_app.py
│   │   ├── host.json
│   │   ├── local_settings.json
│   │   ├── requirements.txt
│   ├── README.md

Note: I created the individual function directories with the following commands within my project dir "azure-functions":

Blob function:

func init az-func-blob --worker-runtime python --model V2

cd az-func-blob

func new --template "Blob trigger" --name BlobTrigger
Http function:

func init az-func-http --worker-runtime python --model V2

cd az-func-http

func new --template "HTTP trigger" --name HTTPTrigger

If I navigate to the directory of one of these functions and run the command func azure functionapp publish SPIEFUNC2 it works fine. However running this command again in the other function directory will overwrite the Trigger/Function in Azure instead of appending a new one even though the trigger names are different.
Apparently that’s just how it works in Azure but I don’t know how to create multiple functions within one Function app.

I saw this post here where someone suggested to use the same "host.json" for all functions. I don’t know how to do this as every host.json is exactly the same anyway and looks like this:

{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[4.*, 5.0.0)"
  }
}

Can someone please explain in detail how to get set this up using only one Azure Function App instead of multiple function apps?

Asked By: Daniel

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Source

Answer 1

Can someone please explain in detail how to get set this up using only one Azure Function App instead of multiple function apps?

I am able to deploy multiple functions to a Function App using func azure functionapp publish <function_APP_Name> command.

Thanks @Thomas for the comment, you need to run func init --worker-runtime python --model V2 command once and func new twice.

I have created one Http Triggered Function and Blob Triggered Function as shown below-

enter image description here

When you will run func init --worker-runtime python --model V2, all the default files will get created for a function. Upon running func new, it will add the triggers in it.

I have deployed the functions to the function app and got successful deployed output.

enter image description here