Deploying Function App using yaml

Abhijit M 25

I am trying to figure out how to deploy a Function App in azure using pipeline yaml file
My runtime environment is python 3.11
this is the sample azure function i am trying to deploy

import azure.functions as func
import logging
import requests
import base64
import os

app = func.FunctionApp(http_auth_level=func.AuthLevel.ANONYMOUS)

# Get values from environment variables
AZURE_DEVOPS_ORG = os.getenv('AZURE_DEVOPS_ORG')
PROJECT_NAME = os.getenv('PROJECT_NAME')
PIPELINE_ID = os.getenv('PIPELINE_ID')
PAT = os.getenv('PAT')

@app.route(route="http_trigger")
def http_trigger(req: func.HttpRequest) -> func.HttpResponse:
    logging.info('Python HTTP trigger function processed a request.')

    # Ensure all required environment variables are set
    if not all([AZURE_DEVOPS_ORG, PROJECT_NAME, PIPELINE_ID, PAT]):
        return func.HttpResponse("Environment variables are missing.", status_code=500)

    # Construct the full URL
    url = f"https://dev.azure.com/{AZURE_DEVOPS_ORG}/{PROJECT_NAME}/_apis/pipelines/{PIPELINE_ID}/runs?api-version=7.1"

    # Encode the PAT for Basic Authentication
    encoded_pat = base64.b64encode(f":{PAT}".encode()).decode()

    headers = {
        "Content-Type": "application/json",
        "Authorization": f"Basic {encoded_pat}"
    }

    # Prepare the request body
    body = {
        "resources": {
            "repositories": {
                "self": {
                    "refName": "refs/heads/main"
                }
            }
        }
    }

    # Make the API call
    try:
        response = requests.post(url, headers=headers, json=body)
        response.raise_for_status()  # Raises a HTTPError if the status is 4xx, 5xx
    except requests.exceptions.RequestException as e:
        logging.error(f"Error calling Azure DevOps API: {str(e)}")
        return func.HttpResponse(f"Error calling Azure DevOps API: {str(e)}", status_code=500)

    # Process the successful response
    if response.status_code in [200, 201]:
        response_data = response.json()
        run_id = response_data.get('id')
        run_state = response_data.get('state')
        pipeline_name = response_data.get('pipeline', {}).get('name')

        success_message = f"Pipeline '{pipeline_name}' (ID: {PIPELINE_ID}) triggered successfully. Run ID: {run_id}, State: {run_state}"
        logging.info(success_message)
        return func.HttpResponse(success_message, status_code=200)
    else:
        error_message = f"Unexpected response. Status code: {response.status_code}. Response: {response.text}"
        logging.error(error_message)
        return func.HttpResponse(error_message, status_code=response.status_code)

VenkateshDodda-MSFT 20,536 Reputation points Microsoft Employee

2024-09-24T09:31:55.1733333+00:00

@Abhijit M Thanks for reaching out to Microsoft Q&A, apologize for any inconvenience caused on this.

Based on the shared information, I understand you are looking for help on deploying function to function app using yaml in Azure pipelines.

Did you get any chance to go through the documented steps mentioned in this public documentation on continuously deploy in Azure Functions?
VenkateshDodda-MSFT 20,536 Reputation points Microsoft Employee

2024-09-25T04:36:24.8066667+00:00

@Abhijit M following up to see if you have a chance to check my previous response and helped. Do let me know if you have any further questions on this.

Abhijit M 25

I tried based the documentation and it was working as intended
but when i tried deploying the same in higher env in another setup i see deployment completion being successful, but the function is not being listed
this is the yaml file i created

trigger:
  - main

variables:
  appName: '$(AppNameDev)'
  environmentName: 'development'
  azureSubscription: '$(AzureRM)'
  resourceGroupName: '$(ResourceGroup)'
  pythonVersion: '3.11'
  vmImageName: 'ubuntu-latest'
  buildZipFileName: '$(System.DefaultWorkingDirectory)/my-function-build.zip'

pool:
  vmImage: 'ubuntu-latest'

steps:
- task: UsePythonVersion@0
  displayName: "Set Python version to 3.11"
  inputs:
    versionSpec: '3.11'
    architecture: 'x64'

- bash: |
    if [ -f extensions.csproj ]
    then
        dotnet build extensions.csproj --output ./bin
    fi
    pip install --target="./.python_packages/lib/site-packages" -r ./requirements.txt
  displayName: "Build extensions and install dependencies"

- task: ArchiveFiles@2
  displayName: "Archive files"
  inputs:
    rootFolderOrFile: "$(System.DefaultWorkingDirectory)"
    includeRootFolder: false
    archiveType: "zip"
    archiveFile: "$(buildZipFileName)"

- task: PublishBuildArtifacts@1
  displayName: "Publish build artifacts"
  inputs:
    PathtoPublish: '$(buildZipFileName)'
    artifactName: 'drop'

- task: AzureCLI@2
  displayName: "Deploy Azure Function App using Azure CLI"
  inputs:
    azureSubscription: '$(azureSubscription)'
    scriptType: 'bash'
    scriptLocation: 'inlineScript'
    inlineScript: |
      az functionapp deployment source config-zip -g $(resourceGroupName) -n $(appName) --src $(buildZipFileName)

- task: AzureAppServiceSettings@1
  displayName: 'Update App Settings'
  inputs:
    azureSubscription: '$(azureSubscription)'
    appName: '$(appName)'
    resourceGroupName: '$(resourceGroupName)'
    appSettings: |
      [
        {
          "name": "AZURE_DEVOPS_ORG",
          "value": "$(AZURE_DEVOPS_ORG)"
        },
        {
          "name": "PROJECT_NAME",
          "value": "$(PROJECT_NAME)"
        },
        {
          "name": "PIPELINE_ID",
          "value": "$(PIPELINE_ID)"
        },
        {
          "name": "PAT",
          "value": "$(PAT)"
        }
      ]

Abhijit M 25 Reputation points

2024-09-25T05:13:18.5166667+00:00

@VenkateshDodda
VenkateshDodda-MSFT 20,536 Reputation points Microsoft Employee

2024-09-27T09:49:48.96+00:00

@Abhijit M Thanks for your response and apologize for the delay in my response.

Could you please check in kudu console whether the deployed functions related code/files are present or not.

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Deploying Function App using yaml

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