e2e test prometheus operator scrape config and probes

Signed-off-by: qiyang <[email protected]>

tests/e2e-targetallocator/targetallocator-prometheuscr/02-install.yaml

@@ -57,6 +57,27 @@ spec:
 ---
 apiVersion: batch/v1
 kind: Job
+metadata:
+  name: check-metrics
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: check-metrics
+          image: curlimages/curl
+          args:
+            - /bin/sh
+            - -c
+            - |
+              for i in $(seq 30); do
+                if curl -m 1 -s http://prometheus-cr-v1beta1-collector:9090/metrics | grep "otelcol"; then exit 0; fi
+                sleep 5
+              done
+              exit 1
+---
+apiVersion: batch/v1
+kind: Job
 metadata:
   name: check-ta-scrape-config-v1beta1
 spec: