chore: referencing the setup-kind script from the plumbing repo instead of copying it

.github/workflows/e2e-matrix.yml

@@ -18,68 +18,74 @@ jobs:
       fail-fast: false # Keep running if one leg fails.
       matrix:
         k8s-name:
-        - k8s-oldest
-        - k8s-plus-one
+          - k8s-oldest
+          - k8s-plus-one
 
         include:
-        - k8s-name: k8s-oldest
-          k8s-version: v1.28.x
-        - k8s-name: k8s-plus-one
-          k8s-version: v1.29.x
+          - k8s-name: k8s-oldest
+            k8s-version: v1.28.x
+          - k8s-name: k8s-plus-one
+            k8s-version: v1.29.x
     env:
       KO_DOCKER_REPO: registry.local:5000/tekton
       CLUSTER_DOMAIN: c${{ github.run_id }}.local
       ARTIFACTS: ${{ github.workspace }}/artifacts
 
     steps:
-    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
-    - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00  # v6.0.0
-      with:
-        go-version-file: "go.mod"
-    - uses: ko-build/setup-ko@d006021bd0c28d1ce33a07e7943d48b079944c8d # v0.9
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
+        with:
+          go-version-file: "go.mod"
+      - uses: ko-build/setup-ko@d006021bd0c28d1ce33a07e7943d48b079944c8d # v0.9
 
-    - name: Install Dependencies
-      working-directory: ./
-      run: |
-        echo '::group:: install go-junit-report'
-        go install github.com/jstemmer/[email protected]
-        echo '::endgroup::'
+      - name: Install Dependencies
+        working-directory: ./
+        run: |
+          echo '::group:: install go-junit-report'
+          go install github.com/jstemmer/[email protected]
+          echo '::endgroup::'
+          echo '::group:: created required folders'
+          mkdir -p "${ARTIFACTS}"
+          echo '::endgroup::'
+          echo "${GOPATH}/bin" >> "$GITHUB_PATH"
 
-        echo '::group:: created required folders'
-        mkdir -p "${ARTIFACTS}"
-        echo '::endgroup::'
+      - name: Run tests
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/tektoncd/plumbing/main/tekton/images/kind-e2e/setup-kind.sh -o setup-kind.sh
+          chmod +x setup-kind.sh
 
-        echo "${GOPATH}/bin" >> "$GITHUB_PATH"
+          # Patch outdated MetalLB version (v0.9.3 -> v0.13.10)
+          # v0.9.3 uses PodSecurityPolicy which was removed in Kubernetes 1.25+
+          sed -i.bak 's|kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.9.3/manifests/namespace.yaml|kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.10/config/manifests/metallb-native.yaml|g' setup-kind.sh
+          sed -i.bak '/kubectl apply -f.*metallb\/v0.9.3.*metallb.yaml/d' setup-kind.sh
 
-    - name: Run tests
-      run: |
-        ./hack/setup-kind.sh \
-          --registry-url $(echo ${KO_DOCKER_REPO} | cut -d'/' -f 1) \
-          --cluster-suffix c${{ github.run_id }}.local \
-          --nodes 3 \
-          --k8s-version ${{ matrix.k8s-version }} \
-          --e2e-script ./test/e2e-tests.sh \
-          --e2e-env ./test/e2e-tests-kind-prow.env
+          ./setup-kind.sh \
+            --registry-url $(echo ${KO_DOCKER_REPO} | cut -d'/' -f 1) \
+            --cluster-suffix c${{ github.run_id }}.local \
+            --nodes 3 \
+            --k8s-version ${{ matrix.k8s-version }} \
+            --e2e-script ./test/e2e-tests.sh \
+            --e2e-env ./test/e2e-tests-kind-prow.env
 
-    - name: Upload test results
-      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-      with:
-        name: ${{ matrix.k8s-version }}-${{ matrix.feature-flags }}
-        path: ${{ env.ARTIFACTS }}
+      - name: Upload test results
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: ${{ matrix.k8s-version }}-${{ matrix.feature-flags }}
+          path: ${{ env.ARTIFACTS }}
 
-    - uses: chainguard-dev/actions/kind-diag@6f4f4de7549514e7b659741b30f6476f245600dd # v1.5.3
-      if: ${{ failure() }}
-      with:
-        artifact-name: ${{ matrix.k8s-version }}-${{ matrix.feature-flags }}-logs
+      - uses: chainguard-dev/actions/kind-diag@6f4f4de7549514e7b659741b30f6476f245600dd # v1.5.3
+        if: ${{ failure() }}
+        with:
+          artifact-name: ${{ matrix.k8s-version }}-${{ matrix.feature-flags }}-logs
 
-    - name: Dump Artifacts
-      if: ${{ failure() }}
-      run: |
-        if [[ -d ${{ env.ARTIFACTS }} ]]; then
-          cd ${{ env.ARTIFACTS }}
-          for x in $(find . -type f); do
-            echo "::group:: artifact $x"
-            cat $x
-            echo '::endgroup::'
-          done
-        fi
+      - name: Dump Artifacts
+        if: ${{ failure() }}
+        run: |
+          if [[ -d ${{ env.ARTIFACTS }} ]]; then
+            cd ${{ env.ARTIFACTS }}
+            for x in $(find . -type f); do
+              echo "::group:: artifact $x"
+              cat $x
+              echo '::endgroup::'
+            done
+          fi