[skip ci] Add k8s log for github action (#8796)

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

.github/workflows/pod-kill-chaos-test.yaml

@@ -66,6 +66,15 @@ jobs:
       - name: Verify Pod Kill
         if: ${{ always() }}
         shell: bash
+        working-directory: tests/python_client/chaos
         run: |
           #in this step, we can verify whether pod has been killed by pod's age
-          kubectl get po -n chaos-testing |grep "milvus-chaos"
+          kubectl get po -n chaos-testing |grep "milvus-chaos"
+          kubectl logs -l app.kubernetes.io/instance=my-release -n chaos-testing > log_info.log
+
+      - name: Upload logs
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v2
+        with:
+          name: logs-${{ matrix.pod }}
+          path: tests/python_client/chaos/log_info.log