[system test] [perf] Performance perf report into PR (#12124)

Signed-off-by: see-quick <maros.orsak159@gmail.com>

Author: see-quick

.github/actions/systemtests/generate-matrix/pipelines.yaml

@@ -392,3 +392,26 @@ pipelines:
     strimzi_rbac_scope: "CLUSTER"
     cluster_operator_install_type: "yaml"
     parallel: 4
+  ###################
+  ### Performance ###
+  ###################
+  # x86-64
+  - agent: "oracle-vm-8cpu-32gb-x86-64"
+    arch: "amd64"
+    pipeline: "performance"
+    profile: "performance"
+    timeout: 180
+    strimzi_feature_gates: ""
+    strimzi_rbac_scope: "CLUSTER"
+    cluster_operator_install_type: "yaml"
+    parallel: 1
+  # arm64
+  - agent: "oracle-vm-8cpu-32gb-arm64"
+    arch: "arm64"
+    pipeline: "performance"
+    profile: "performance"
+    timeout: 180
+    strimzi_feature_gates: ""
+    strimzi_rbac_scope: "CLUSTER"
+    cluster_operator_install_type: "yaml"
+    parallel: 1

.github/actions/systemtests/run-perf-report/action.yml

@@ -0,0 +1,64 @@
+name: Run Performance Report
+description: Downloads artifacts, generates performance report, and posts results
+inputs:
+  artifacts-pattern:
+    description: 'Pattern for performance artifacts to download'
+    required: false
+    default: 'performance-results-*'
+  artifacts-path:
+    description: 'Path where artifacts should be downloaded'
+    required: false
+    default: 'systemtest/target/performance-artifacts'
+runs:
+  using: composite
+  steps:
+    - name: Download performance results
+      uses: actions/download-artifact@v4
+      with:
+        pattern: ${{ inputs.artifacts-pattern }}
+        path: ${{ inputs.artifacts-path }}
+        # Each artifact gets its own subdirectory (not merged) to preserve arch-specific results
+
+    - name: List downloaded artifacts
+      shell: bash
+      run: |
+        echo "Downloaded artifacts:"
+        find "${{ inputs.artifacts-path }}" -type f | head -n 20
+
+    - name: Generate performance report
+      id: generate_report
+      uses: actions/github-script@v7
+      env:
+        PERF_DIR: ${{ inputs.artifacts-path }}
+      with:
+        github-token: ${{ github.token }}
+        script: |
+          const { generatePerformanceReport } = require('./.github/actions/systemtests/run-perf-report/generate-report.js');
+          const perfDir = process.env.PERF_DIR || 'systemtest/target/performance';
+          const result = generatePerformanceReport(perfDir, core);
+          core.setOutput('has_results', result.has_results);
+          core.setOutput('summary', result.summary);
+          core.setOutput('timestamp', result.timestamp);
+
+    - name: Add performance report comment
+      if: ${{ steps.generate_report.outputs.has_results == 'true' }}
+      uses: ./.github/actions/utils/add-comment
+      with:
+        commentMessage: |
+          ${{ steps.generate_report.outputs.summary }}
+
+    - name: Add performance report to job summary
+      if: ${{ steps.generate_report.outputs.has_results == 'true' }}
+      shell: bash
+      env:
+        SUMMARY_CONTENT: ${{ steps.generate_report.outputs.summary }}
+      run: |
+        echo "$SUMMARY_CONTENT" >> "$GITHUB_STEP_SUMMARY"
+
+    - name: No results warning
+      if: ${{ steps.generate_report.outputs.has_results == 'false' }}
+      shell: bash
+      env:
+        WARNING_MESSAGE: "No performance results found in artifacts"
+      run: |
+        echo "::warning::$WARNING_MESSAGE"