Add test workflow for container build

.github/workflows/adminconsole-test-image-build.yml

@@ -0,0 +1,73 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow
+name: AdminConsole Web App / Test container image build
+on:
+  workflow_dispatch:
+
+permissions:
+  packages: write
+  contents: read
+
+jobs:
+  test-container-image-build:
+    name: Run container image build
+    runs-on: ubuntu-latest
+
+    env:
+      EVENT_TYPE: ${{ github.event_name }}
+      TAG_NAME: ${{ github.ref_name }}
+
+    steps:
+      - name: Generate image tag value
+        shell: pwsh
+        run: |
+          "IMAGE_TAG=$($env:EVENT_TYPE -eq "push" ? $env:TAG_NAME : $([datetime]::Now.ToString("yyyyMMddTHHmmss")))" | Out-File -FilePath $env:GITHUB_ENV -Append
+
+      - name: "Checkout GitHub Action"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup .NET SDK
+        uses: actions/setup-dotnet@v3
+        with:
+          global-json-file: global.json
+
+      - name: Install .NET tools
+        run: dotnet tool restore
+
+      - name: Update project files with gitversion
+        run: dotnet tool run dotnet-gitversion /updateprojectfiles
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Generate Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.actor }}/SmallsOnline-PasswordExpirationNotifier-AdminConsole
+          tags: |
+            type=ref,event=tag
+            type=ref,event=branch
+            type=sha
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: ./
+          file: ./Dockerfile.admin-console
+          push: false
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            "GITHUB_USER=${{ github.actor }}"
+            "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}"