Add GitHub Action workflow to publish NuGet packages

.github/workflows/publish-nuget.yml

@@ -0,0 +1,64 @@
+name: Publish NuGet Package
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'NuGet Package Version (e.g., 1.1.0)'
+        required: true
+        default: '1.1.0'
+
+jobs:
+  publish:
+    runs-on: windows-latest
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Set up .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Authenticate with Azure
+        uses: azure/login@v1
+        with:
+          creds: ${{ secrets.EZRADIUS_CLIENT_DEPLOYER }}
+
+      - name: Install AzureSignTool
+        run: dotnet tool install --global AzureSignTool
+
+      - name: Build NuGet Package
+        run: >
+          dotnet build .\EZRadiusClient\EZRadiusClient.csproj
+          -c Release -p:Version=${{ inputs.version }}
+
+      - name: Sign NuGet Package
+        run: |
+          $akvToken = (az account get-access-token --resource https://vault.azure.net --query "accessToken").Replace('"','')
+          azuresigntool sign --azure-key-vault-url https://codesigningkeytos.vault.azure.net/ -kvc globalsign --azure-key-vault-accesstoken $akvToken -tr http://timestamp.digicert.com .\EZRadiusClient\bin\Release\EZRadiusClient.${{ inputs.version }}.nupkg
+        shell: pwsh
+
+      - name: Verify NuGet Package
+        run: >
+          dotnet nuget verify --all
+          .\EZRadiusClient\bin\Release\EZRadiusClient.${{ inputs.version }}.nupkg
+
+      - name: Publish to NuGet.org
+        run: >
+          dotnet nuget push
+          .\EZRadiusClient\bin\Release\EZRadiusClient.${{ inputs.version }}.nupkg
+          --api-key ${{ secrets.NUGET_API_KEY }}
+          --source https://api.nuget.org/v3/index.json
+          --skip-duplicate
+
+      - name: Upload Package Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: nuget-package
+          path: >
+            .\EZRadiusClient\bin\Release\EZRadiusClient.${{ inputs.version }}.nupkg

README.md

@@ -9,6 +9,25 @@ To run the SampleApp, it requires a token scope ID, a url for EZRadius instance
 2) Use the SampleApp to see how the client can be used and configured (must have EZRadius instance with a Radius policy)
 3) If you would like to call the sample app from the command line, you can download a signed version from [here](https://download.keytos.io/Downloads/EZRADIUS/RADIUSConsole.exe)
 
+## Publishing a New Release
+
+To publish a new version of the EZRadiusClient NuGet package:
+
+1. Navigate to the **Actions** tab in the GitHub repository
+2. Select the **Publish NuGet Package** workflow from the left sidebar
+3. Click the **Run workflow** button
+4. Enter the new version number (e.g., `1.2.0`) in the version input field
+5. Click **Run workflow** to start the process
+
+The workflow will:
+- Build the NuGet package with the specified version
+- Sign the package using Azure Code Signing
+- Verify the package signature
+- Publish the package to NuGet.org
+- Upload the package as an artifact for reference
+
+**Note:** Ensure that the version number follows semantic versioning (MAJOR.MINOR.PATCH) and hasn't been published before.
+
 ## Displaying Radius Policies
 
 Starting with a basic feature, the ```show``` verb will display all the Radius policies. This command calls the ```GetRadiusPoliciesAsync()``` method and prints to the console the Radius policies and their attributes currently in the passed EZRadius instance.