Multiple Azure Function Apps One Github Repo

Description

In this post I will demonstrate how to connect multiple functions apps to one repo in Github using branches. I don’t have an excellent example but the idea is that if you have a Python HTTP Function App which is what I mostly code, you can setup different branches inside a repo for different versions of the app. Then, when you push to Github, depending on what branch you are on, Github Actions can push to the appropriate Function App inside Azure.

To Resolve:

1. Follow my post to connect to Github private repo and publishing a new branch

   git init .
   New-Item -ItemType File -Path . -Name "myfile.txt" | Out-Null
   git add --all
   git commit -m 'first'
   # Don't forget to add the .git on the end or Credential Manager will not tie these together!
   git remote add origin https://github.com/gerryw1389/example.git
   git branch -M main
   
   #credential manager
   # git:https://github.com/gerryw1389/example.git
   # username: your-github-username
   # password: your-github-Personal-Access-Token
   
   git pull origin main --allow-unrelated-histories
   git push --set-upstream origin main
   
   # if you open the repo in vscode, it should work fine now
   
   #Next, create a testing branch:
   
   git checkout -b testing
   New-Item -ItemType File -Path . -Name "myfile-test.txt" | Out-Null
   git add --all
   git commit -m 'add myfile'
   git push origin testing
   git status
   # on branch testing
   

2. Inside the testing branch, add your code of the Function App while referencing Test systems, variables, etc.

3. Now, just configure Github actions to target a specific push for a specific branch like seen in my examples

   • Basically, you will have a Github Action like the following (generated by Azure when you create an Azure Function App connection to Github):

   • NOTE: Jekyll Liquid Filters clash with Github Variables so replace all instances of ${/{ by removing the forward slash :)

   # Docs for the Azure Web Apps Deploy action: https://github.com/azure/functions-action
   # More GitHub Actions for Azure: https://github.com/Azure/actions
   
   name: Build and deploy Python project to Azure Function App - my-example-http-python-fa
   
   on:
   push:
      branches:
         - main
   workflow_dispatch:
   
   env:
      AZURE_FUNCTIONAPP_PACKAGE_PATH: '.' # set this to the path to your web app project, defaults to the repository root
      PYTHON_VERSION: '3.8' # set this to the python version to use (supports 3.6, 3.7, 3.8)
   
   jobs:
   build-and-deploy:
      runs-on: ubuntu-latest
      steps:
      - name: 'Checkout GitHub Action'
         uses: actions/checkout@v2
   
      - name: Setup Python ${/{ env.PYTHON_VERSION }} Environment
         uses: actions/setup-python@v1
         with:
         python-version: ${/{ env.PYTHON_VERSION }}
   
      - name: 'Resolve Project Dependencies Using Pip'
         shell: bash
         run: |
         pushd './${/{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}'
         python -m pip install --upgrade pip
         pip install -r requirements.txt --target=".python_packages/lib/site-packages"
         popd
   
      - name: 'Run Azure Functions Action'
         uses: Azure/functions-action@v1
         id: fa
         with:
         app-name: 'my-example-http-python-fa'
         slot-name: 'production'
         package: ${/{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}
         publish-profile: ${/{ secrets.AzureAppService_PublishProfile_684f3372 }}
   

   • You then clone this and change the branches: to testing instead of production like I did in the example