Merge pull request #1456 from kellyfj/fix-faq

Fix FAQ templating format and change reference of $workload to $target.

docs/gitbook/faq.md

@@ -391,20 +391,20 @@ sum(
  rate(
  istio_requests_total{
  reporter="destination",
- destination_workload_namespace=~"$namespace",
- destination_workload=~"$workload",
+ destination_workload_namespace=~"{{ namespace }}",
+ destination_workload=~"{{ target }}",
  response_code!~"5.*"
- }[$interval]
+ }[{{ interval }}]
  )
 )
 /
 sum(
  rate(
  istio_requests_total{
  reporter="destination",
- destination_workload_namespace=~"$namespace",
- destination_workload=~"$workload"
- }[$interval]
+ destination_workload_namespace=~"{{ namespace }}",
+ destination_workload=~"{{ target }}"
+ }[{{ interval }}]
  )
 )
 ```
@@ -415,19 +415,19 @@ Envoy query (App Mesh):
 sum(
  rate(
  envoy_cluster_upstream_rq{
- kubernetes_namespace="$namespace",
- kubernetes_pod_name=~"$workload",
+ kubernetes_namespace="{{ namespace }}",
+ kubernetes_pod_name=~"{{ target }}",
  envoy_response_code!~"5.*"
- }[$interval]
+ }[{{ interval }}]
  )
 )
 /
 sum(
  rate(
  envoy_cluster_upstream_rq{
- kubernetes_namespace="$namespace",
- kubernetes_pod_name=~"$workload"
- }[$interval]
+ kubernetes_namespace="{{ namespace }}",
+ kubernetes_pod_name=~"{{ target }}"
+ }[{{ interval }}]
  )
 )
 ```
@@ -438,17 +438,17 @@ Envoy query (Contour and Gloo):
 sum(
  rate(
  envoy_cluster_upstream_rq{
- envoy_cluster_name=~"$namespace-$workload",
+ envoy_cluster_name=~"{{ namespace }}-{{ target }}",
  envoy_response_code!~"5.*"
- }[$interval]
+ }[{{ interval }}]
  )
 )
 /
 sum(
  rate(
  envoy_cluster_upstream_rq{
- envoy_cluster_name=~"$namespace-$workload",
- }[$interval]
+ envoy_cluster_name=~"{{ namespace }}-{{ target }}",
+ }[{{ interval }}]
  )
 )
 ```
@@ -476,9 +476,9 @@ histogram_quantile(0.99,
  irate(
  istio_request_duration_milliseconds_bucket{
  reporter="destination",
- destination_workload=~"$workload",
- destination_workload_namespace=~"$namespace"
- }[$interval]
+ destination_workload=~"{{ target }}",
+ destination_workload_namespace=~"{{ namespace }}"
+ }[{{ interval }}]
  )
  ) by (le)
 )
@@ -491,9 +491,9 @@ histogram_quantile(0.99,
  sum(
  irate(
  envoy_cluster_upstream_rq_time_bucket{
- kubernetes_pod_name=~"$workload",
- kubernetes_namespace=~"$namespace"
- }[$interval]
+ kubernetes_pod_name=~"{{ target }}",
+ kubernetes_namespace=~"{{ namespace }}"
+ }[{{ interval }}]
  )
  ) by (le)
 )
@@ -515,20 +515,20 @@ If you're using Istio with Gateway API, the Prometheus query needs to include `r
  rate(
  istio_requests_total{
  reporter="source",
- destination_workload_namespace=~"$namespace",
- destination_workload=~"$workload",
+ destination_workload_namespace=~"{{ namespace }}",
+ destination_workload=~"{{ target }}",
  response_code!~"5.*"
- }[$interval]
+ }[{{ interval }}]
  )
 )
 /
 sum(
  rate(
  istio_requests_total{
  reporter="source",
- destination_workload_namespace=~"$namespace",
- destination_workload=~"$workload"
- }[$interval]
+ destination_workload_namespace=~"{{ namespace }}",
+ destination_workload=~"{{ target }}"
+ }[{{ interval }}]
  )
 ) * 100
 ```