🌱: simplify E2E Book Samples job (kubernetes-sigs#4469)

fix: simplify E2E Book Samples job

Signed-off-by: Mateus Oliveira <[email protected]>

.github/workflows/test-e2e-book.yml

@@ -15,10 +15,16 @@ on:
       - '.github/workflows/test-e2e-book.yml'
 
 jobs:
-  e2e-getting-started:
+  e2e:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: true
+      matrix:
+        folder: [
+          "docs/book/src/getting-started/testdata/project",
+          "docs/book/src/cronjob-tutorial/testdata/project",
+          "docs/book/src/multiversion-tutorial/testdata/project"
+        ]
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
     steps:
       - name: Checkout repository
@@ -41,67 +47,6 @@ jobs:
       - name: Create kind cluster
         run: kind create cluster
 
-      - name: Running make test-e2e for Getting Started tutorial sample
-        working-directory: docs/book/src/getting-started/testdata/project
+      - name: Running make test-e2e for ${{ matrix.folder }}
+        working-directory: ${{ matrix.folder }}
         run: make test-e2e
-
-  e2e-cronjob-tutorial:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: true
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
-      - name: Install the latest version of kind
-        run: |
-          curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
-          chmod +x ./kind
-          sudo mv ./kind /usr/local/bin/kind
-
-      - name: Verify kind installation
-        run: kind version
-
-      - name: Create kind cluster
-        run: kind create cluster
-
-      - name: Running make test-e2e for Cronjob tutorial sample
-        working-directory: docs/book/src/cronjob-tutorial/testdata/project
-        run: make test-e2e
-
-  e2e-multiversion-tutorial:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: true
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
-      - name: Install the latest version of kind
-        run: |
-          curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
-          chmod +x ./kind
-          sudo mv ./kind /usr/local/bin/kind
-
-      - name: Verify kind installation
-        run: kind version
-
-      - name: Create kind cluster
-        run: kind create cluster
-
-      - name: Running make test-e2e for Multiversion tutorial sample
-        working-directory: docs/book/src/multiversion-tutorial/testdata/project
-        run: make test-e2e
-