added path to pods scrape job

documentation/examples/prometheus-kubernetes.yml

@@ -151,6 +151,7 @@ scrape_configs:
 # following annotations:
 #
 # * `prometheus.io/scrape`: Only scrape pods that have a value of `true`
+# * `prometheus.io/path`: If the metrics path is not `/metrics` override this.
 # * `prometheus.io/port`: Scrape the pod on the indicated port instead of the default of `9102`.
 - job_name: 'kubernetes-pods'
 
@@ -164,6 +165,10 @@ scrape_configs:
   - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
     action: keep
     regex: true
+  - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
+    action: replace
+    target_label: __metrics_path__
+    regex: (.+)
   - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
     action: replace
     regex: (.+):(?:\d+);(\d+)