With Azure Storage Action, you can automate your workflow to deploy files to Azure Blob Storage

• Checkout Checkout your Git repository content into Github Actions agent.
• Setup DotNet Sets up a dotnet environment by optionally downloading and caching a version of dotnet by SDK version and adding to PATH .

1. Follow the tutorial Azure Storage Account)
2. Copy the following example of workflow and create the workflow to .github/workflows/ in your project repository.
3. Change folder to your folder path where files to deploy are.
4. Commit and push your project to GitHub repository, you should see a new GitHub Action initiated in Actions tab.

# File: .github/workflows/workflow.yml

on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps: 
    - uses: actions/checkout@v1
    - uses: actions/setup-dotnet@v1
      with:
        dotnet-version: '3.0.100'
    - uses: lauchacarro/Azure-Storage-Action@master
      with:
        enabled-static-website: 'true'
        folder: 'MyFolder'
        connection-string: ${{ secrets.CONNECTION_STRING }}

For any credentials like Azure Service Principal, Publish Profile, Connection Strings, etc add them as secrets in the GitHub repository and then use them in the workflow.

The above example uses the Connection String of your Azure Storage Account.

Follow the steps to configure the secret:

• Follow the tutorial View and copy a connection string and copy the connection string.
• Define a new secret under your repository settings, Add secret menu.
• Paste the connection string file into the secret's value field.
• Now in the workflow file in your branch: .github/workflows/workflow.yml replace the secret for the input connection-string: of the Azure Storage Action (Refer to the example above).