Update Prometheus metrics label pod_name to pod (#7920)

content/en/docs/ops/best-practices/observability/index.md

@@ -18,7 +18,7 @@ provided for collecting metrics generated for all mesh traffic. This deployment
 Prometheus is intentionally deployed with a very short retention window (6 hours). The
 default Prometheus deployment is also configured to collect metrics from each Envoy proxy
 running in the mesh, augmenting each metric with a set of labels about their origin (`instance`,
-`pod_name`, and `namespace`).
+`pod`, and `namespace`).
 
 While the default configuration is well-suited for small clusters and monitoring for short time horizons,
 it is not suitable for large-scale meshes or monitoring over a period of days or weeks. In particular,
@@ -43,75 +43,75 @@ groups:
   rules:
   - record: "workload:istio_requests_total"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_requests_total)
+      sum without(instance, namespace, pod) (istio_requests_total)
 
   - record: "workload:istio_request_duration_milliseconds_count"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_duration_milliseconds_count)
+      sum without(instance, namespace, pod) (istio_request_duration_milliseconds_count)
 
   - record: "workload:istio_request_duration_milliseconds_sum"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_duration_milliseconds_sum)
+      sum without(instance, namespace, pod) (istio_request_duration_milliseconds_sum)
 
   - record: "workload:istio_request_duration_milliseconds_bucket"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_duration_milliseconds_bucket)
+      sum without(instance, namespace, pod) (istio_request_duration_milliseconds_bucket)
 
   - record: "workload:istio_request_bytes_count"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_bytes_count)
+      sum without(instance, namespace, pod) (istio_request_bytes_count)
 
   - record: "workload:istio_request_bytes_sum"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_bytes_sum)
+      sum without(instance, namespace, pod) (istio_request_bytes_sum)
 
   - record: "workload:istio_request_bytes_bucket"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_request_bytes_bucket)
+      sum without(instance, namespace, pod) (istio_request_bytes_bucket)
 
   - record: "workload:istio_response_bytes_count"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_response_bytes_count)
+      sum without(instance, namespace, pod) (istio_response_bytes_count)
 
   - record: "workload:istio_response_bytes_sum"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_response_bytes_sum)
+      sum without(instance, namespace, pod) (istio_response_bytes_sum)
 
   - record: "workload:istio_response_bytes_bucket"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_response_bytes_bucket)
+      sum without(instance, namespace, pod) (istio_response_bytes_bucket)
 
   - record: "workload:istio_tcp_connections_opened_total"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_connections_opened_total)
+      sum without(instance, namespace, pod) (istio_tcp_connections_opened_total)
 
   - record: "workload:istio_tcp_connections_closed_total"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_connections_opened_total)
+      sum without(instance, namespace, pod) (istio_tcp_connections_opened_total)
 
   - record: "workload:istio_tcp_sent_bytes_total_count"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_sent_bytes_total_count)
+      sum without(instance, namespace, pod) (istio_tcp_sent_bytes_total_count)
 
   - record: "workload:istio_tcp_sent_bytes_total_sum"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_sent_bytes_total_sum)
+      sum without(instance, namespace, pod) (istio_tcp_sent_bytes_total_sum)
 
   - record: "workload:istio_tcp_sent_bytes_total_bucket"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_sent_bytes_total_bucket)
+      sum without(instance, namespace, pod) (istio_tcp_sent_bytes_total_bucket)
 
   - record: "workload:istio_tcp_received_bytes_total_count"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_received_bytes_total_count)
+      sum without(instance, namespace, pod) (istio_tcp_received_bytes_total_count)
 
   - record: "workload:istio_tcp_received_bytes_total_sum"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_received_bytes_total_sum)
+      sum without(instance, namespace, pod) (istio_tcp_received_bytes_total_sum)
 
   - record: "workload:istio_tcp_received_bytes_total_bucket"
     expr: |
-      sum without(instance, namespace, pod_name) (istio_tcp_received_bytes_total_bucket)
+      sum without(instance, namespace, pod) (istio_tcp_received_bytes_total_bucket)
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