Added empty secretes ,modified newstore function to normal stop if config file is empty.

Signed-off-by: Kushal Shukla <kushalshukla110@gmail.com>

Author: kushalShukla-web

prombench/docs/kind.md

@@ -116,7 +116,7 @@ If used with the GitHub integration:
 
 2. ### Setting Up Benchmarking Data
 
-When setting up a benchmarking environment, it’s often useful to have pre-generated data available. This data can help speed up testing and make benchmarks more realistic by simulating actual workloads.
+When setting up a benchmarking environment, it’s often useful to have pre-generated data available.This data can help speed up testing and make benchmarks more realistic by simulating actual workloads.
 
 In this setup, you have two choices:
 
@@ -125,14 +125,21 @@ Here’s how each option works:
 
    To download data from object storage, create a Kubernetes secret with exact named `bucket-config` and file name ```object-config.yml```  with the necessary credentials as per your object storage. This secret enables access to the stored data.
 > Note: Make sure this secret applied before ```3b_prometheus-test_deployment.yaml```
-- **Option 2: Skip downloading data**
-
-   If you don’t need to download data, edit the `3b_prometheus-test_deployment.yaml` file:
 
-   - Remove the `bucket-config` volume section from.
-   - Remove the `volumeMount` section name `bucket-config` from `data-downloader`.
-> Note: You have to remove these two sections from both prometheus-test-pr-{{ .PR_NUMBER }} and prometheus-test-{{ normalise .RELEASE }} deployments.
+- **Option 2: Skip downloading data**
 
+If you don’t Want to Download data create an empty secret like this -
+
+```yaml
+# Empty Secret to Skip Downloading Data
+apiVersion: v1
+kind: Secret
+metadata:
+  name: bucket-secret
+  namespace: prombench-{{ .PR_NUMBER }} 
+type: Opaque
+stringData:
+  object-config.yml: 
 3. Deploy the Kubernetes objects:
    > **_Note:_** If you encounter a `too many files open` error caused by promtail, increase the default value of `/proc/sys/fs/inotify/max_user_instances` from 128 to 512:
    > ```bash

tools/block-sync/upload_download.go

@@ -38,6 +38,10 @@ func newStore(tsdbPath, objectConfig, objectKey string, logger *slog.Logger) (*S
 	if err != nil {
 		return nil, fmt.Errorf("failed to read config file: %w", err)
 	}
+	if len(configBytes) == 0 {
+		fmt.Println("Config file is empty, exiting container.")
+		os.Exit(0)
+	}
 
 	bucket, err := client.NewBucket(log.NewNopLogger(), configBytes, "block-sync")
 	if err != nil {