static webapp deployment fails in prod but exact same code works in develop environment

Question

I have the code for a static webapp in a github repository. The code is being deployed via github actions.

When I deploy to a development environment using the github actions from the development branch, this works as expected.

When I deploy from the master branch, with

jobs:
  build_and_deploy_prod_job:
    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.action != 'closed') || github.event_name == 'workflow_dispatch'
    runs-on: [self-hosted,docker]
    name: Build and Deploy Prod Job
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true
      - name: Build And Deploy Prod
        id: builddeployprod
        uses: Azure/static-web-apps-deploy@v1
        with:
          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN }}
          repo_token: ${{ secrets.GITHUB_TOKEN }} # Used for Github integrations (i.e. PR comments)
          action: "upload"
          production_branch: "master"
          ###### Repository/Build Configurations - These values can be configured to match your app requirements. ######
          # For more information regarding Static Web App workflow configurations, please visit: https://aka.ms/swaworkflowconfig
          app_location: "/" # App source code path
          api_location: "/api" # Api source code path - optional
          output_location: "build" # Built app content directory - optional
          ###### End of Repository/Build Configurations ###### 

in the workflow file, I always get the error

Deployment Failed :(
Deployment Failure Reason: Failed to deploy the Azure Functions.

There are no differences between the 2 repositories, so I guess there must be something static-web-app related to the failure and not code related.

Thanks for helping me troubleshoot this issue.

Kind regards

Hannes

Answer 1

@De Bondt, Hannes (Mechelen) Glad that you were able to resolve your issue and I appreciate your effort in sharing the solution. Your contribution will undoubtedly assist others facing similar challenges.

As the Microsoft Q&A community follows a policy where the question author cannot accept their own answer

I've reposted your solution.  Feel free to consider "Accepting" the answer if you find it suitable.

Problem: The issue is that deploying from the development branch via GitHub Actions works for the development environment, but for master branch error- Deployment Failed :( Deployment Failure Reason: Failed to deploy the Azure Functions.

Solution: "When deploying the static webapp a few months ago, before configuration was in Environment Variables, there was a FUNCTIONS_WORKER_RUNTIME = node. This was migrated to the environment variables. When removing this variable and moving it inside the staticwebapp.config.json, deployment worked as expected."

Thanks again.

Answer 2

I found the issue. When deploying the static webapp a few months ago, before configuration was in Environment Variables, there was a FUNCTIONS_WORKER_RUNTIME = node. This was migrated to the environment variables.

When removing this variable and moving it inside the staticwebapp.config.json, deployment worked as expected.

I hope to have helped at least 1 person with finding the answer on my own question