Added k8 test back

receiver/prometheusreceiver/testdata/config_k8s.yaml

@@ -0,0 +1,28 @@
+prometheus:
+  config:
+    scrape_configs:
+      - job_name: apps
+        kubernetes_sd_configs:
+          - role: pod
+            selectors:
+              - role: pod
+                # only scrape data from pods running on the same node as collector
+                field: "spec.nodeName=${NODE_NAME}"
+        relabel_configs:
+          # scrape pods annotated with "prometheus.io/scrape: true"
+          - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
+            regex: "true"
+            action: keep
+          # read the port from "prometheus.io/port: <port>" annotation and update scraping address accordingly
+          - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
+            action: replace
+            target_label: __address__
+            regex: ([^:]+)(?::\d+)?;(\d+)
+            # escaped $1:$2
+            replacement: $$1:$$2
+          - source_labels: [__meta_kubernetes_namespace]
+            action: replace
+            target_label: kubernetes_namespace
+          - source_labels: [__meta_kubernetes_pod_name]
+            action: replace
+            target_label: kubernetes_pod_name