update metrics config in config files

Signed-off-by: inge4pres <[email protected]>

docs/en/observability/profiling-self-managed.asciidoc

@@ -335,8 +335,15 @@ pf-elastic-collector:
   # Verbose log output option.
   #verbose: true
 
-  # Instrument the service to expose additional metrics.
-  #telemetry: true
+  # Configure metrics exposition. Both expvar and Prometheus formats are supported. Both can be
+  # configured at the same time. By default, no metrics are exposed.
+  # 'prometheus_host' can only be configured with a 'host:port' pair.
+  # 'expvar_host' can be configured either with a 'host:port' pair or with a Unix Domain Socket path (with a  'unix://' prefix).
+  # When host:port is used, an HTTP server is exposed. The server does not support TLS.
+  # An empty value disables metrics exposition for the corresponding format.
+  #metrics:
+  #  prometheus_host: 'localhost:9090'
+  #  expvar_host: unix:///tmp/collector-metrics.sock
 
   # Define the suggested upper limit of memory that pf-elastic-collector should apply. Using a lower
   # amount of memory might trigger garbage collection more often.
@@ -499,8 +506,15 @@ pf-elastic-symbolizer:
   # Verbose log output option. (default: false)
   #verbose: true
 
-  # Instrument the service to expose additional metrics. (default: false)
-  #telemetry: true
+  # Configure metrics exposition. Both expvar and Prometheus formats are supported. Both can be
+  # configured at the same time. By default, no metrics are exposed.
+  # 'prometheus_host' can only be configured with a 'host:port' pair.
+  # 'expvar_host' can be configured either with a 'host:port' pair or with a Unix Domain Socket path (with a  'unix://' prefix).
+  # When host:port is used, an HTTP server is exposed. The server does not support TLS.
+  # An empty value disables metrics exposition for the corresponding format.
+  #metrics:
+  #  prometheus_host: 'localhost:9090'
+  #  expvar_host: unix:///tmp/collector-metrics.sock
 
   # Define the suggested upper limit of memory that pf-elastic-symbolizer should apply. Using a lower
   # amount of memory might trigger garbage collection more often. (default: 200MB)