conf: document fluent-bit-metrics.conf

Signed-off-by: Eduardo Silva <[email protected]>

Author: edsiper

conf/fluent-bit-metrics.conf

@@ -15,6 +15,8 @@
     name            node_exporter_metrics
     tag             node_metrics
     scrape_interval 2
+    # use host root path when running in containers
+    # path.rootfs     /host
 
 [OUTPUT]
     name            prometheus_exporter