How to solve this Invalid/Missing environment variable error while build

Question

Getting Error: Invalid/Missing environment variable: "MONGODB_URL"

while deploying nextjs mongodb app in azure. i have added env variables on configuration - Application settings, but still deployment getting failed.

Answer 1

Hey @Biz Admin

From what I'm seeing, this is during the actions/checkout@v2 build task. I think you're checking for this setting in the pipeline, and it isn't found as an environment variable. You really don't need to have/refer to/set MONGODB_URL as part of the pipeline, so I would remove it. Reason being, it's a setting your application will retrieve at runtime. However, if you want to set the app setting from the pipeline, you can do something like

      - name: Set App Service App Setting
        uses: Azure/appservice-settings@v1
        with:
          app-name: your-app-name
          app-setting-json: |
            {
              "MONGODB_URL": "AppSettingValue"
            }

or

- name: Log in to Azure CLI
  uses: azure/login@v1
  with:
    creds: ${{ secrets.AZURE_SERVICE_PRINCIPAL }}

- name: Configure deployment and runtime settings on the webapp
  run: |
    az configure --defaults ${{ env.RESOURCE_GROUP }}
    az webapp config appsettings --name ${{ env.WEBAPP_NAME }} --settings \
        MONGODB_URL=${{ env.MongoDb }}

Assuming your created MongoDb as an environment variable.

Answer 2

Issue solved -

issue solved by adding this env variable with build run, also don't forget to add this environment variables on GitHub secrets.