Adding YAML examples for nightfall filter doc. Part of issue #1872.

Signed-off-by: Eric D. Schabell <[email protected]>

Author: eschabell

pipeline/filters/nightfall.md

@@ -27,6 +27,32 @@ The plugin supports the following configuration parameters:
 
 The following is an example of a configuration file for the Nightfall filter:
 
+{% tabs %}
+{% tab title="fluent-bit.yaml" %}
+
+```yaml
+pipeline:
+    inputs:
+        - name: http
+          host: 0.0.0.0
+          port: 8000
+
+    filters:
+        - name: nightfall
+          match: '*'
+          nightfall_api_key: <API key>
+          policy_id: 5991946b-1cc8-4c38-9240-72677029a3f7
+          sampling_rate: 1
+          tls.ca_path: /etc/ssl/certs
+    
+    outputs:
+        - name: stdout
+          match: '*'
+```
+
+{% endtab %}
+{% tab title="fluent-bit.conf" %}
+
 ```text
 [INPUT]
     name http
@@ -43,15 +69,22 @@ The following is an example of a configuration file for the Nightfall filter:
 
 [OUTPUT]
     Name stdout
+    Match *
 ```
 
+{% endtab %}
+{% endtabs %}
+
 ### Command line
 
-After you configure the filter, you can use the it from the command line by running a
-command like:
+After you configure the filter, you can use it from the command line by running a command like:
 
 ```shell
-bin/fluent-bit -c /PATH_TO_CONF_FILE/fluent-bit.conf
+# For YAML configuration.
+$ ./fluent-bit -c /PATH_TO_CONF_FILE/fluent-bit.yaml
+
+# For classic configuration.
+$ ./fluent-bit -c /PATH_TO_CONF_FILE/fluent-bit.conf
 ```
 
 Replace _`PATH_TO_CONF_FILE`_ with the path for where your filter configuration file
@@ -71,4 +104,4 @@ Which results in output like:
 [0] app.log: [1644464790.280412000, {"A"=>"there is nothing sensitive here", "B"=>[{"A"=>"my credit card number is *******************"}, {"A"=>"*********** is my social security."}], "C"=>false, "D"=>"key ********************"}]
 [2022/02/09 19:47:25] [ info] [filter:nightfall:nightfall.0] Nightfall request http_do=0, HTTP Status: 200
 [0] app.log: [1644464845.675431000, {"A"=>"a very safe string"}]
-```
+```