in_syslog: add examples for yaml configuration (#1335)

Signed-off-by: Takahiro Yamashita <[email protected]>

Author: nokute78

pipeline/inputs/syslog.md

@@ -42,6 +42,8 @@ By default the service will create and listen for Syslog messages on the unix so
 
 In your main configuration file append the following _Input_ & _Output_ sections:
 
+{% tabs %}
+{% tab title="fluent-bit.conf" %}
 ```python
 [SERVICE]
     Flush               1
@@ -59,6 +61,27 @@ In your main configuration file append the following _Input_ & _Output_ sections
     Name   stdout
     Match  *
 ```
+{% endtab %}
+
+{% tab title="fluent-bit.yaml" %}
+```yaml
+service:
+    flush: 1
+    log_level: info
+    parsers_file: parsers.conf
+pipeline:
+    inputs:
+        - name: syslog
+          path: /tmp/in_syslog
+          buffer_chunk_size: 32000
+          buffer_max_size: 64000
+          receive_buffer_size: 512000
+    outputs:
+        - name: stdout
+          match: '*'
+```
+{% endtab %}
+{% endtabs %}
 
 ### Testing
 
@@ -90,8 +113,10 @@ The following content aims to provide configuration examples for different use c
 
 #### Fluent Bit Configuration
 
-Put the following content in your fluent-bit.conf file:
+Put the following content in your configuration file:
 
+{% tabs %}
+{% tab title="fluent-bit.conf" %}
 ```text
 [SERVICE]
     Flush        1
@@ -108,6 +133,26 @@ Put the following content in your fluent-bit.conf file:
     Name     stdout
     Match    *
 ```
+{% endtab %}
+
+{% tab title="fluent-bit.yaml" %}
+```yaml
+service:
+    flush: 1
+    parsers_file: parsers.conf
+pipeline:
+    inputs:
+        - name: syslog
+          parser: syslog-rfc3164
+          listen: 0.0.0.0
+          port: 5140
+          mode: tcp
+    outputs:
+        - name: stdout
+          match: '*'
+```
+{% endtab %}
+{% endtabs %}
 
 then start Fluent Bit.
 
@@ -131,6 +176,8 @@ $ sudo service rsyslog restart
 
 Put the following content in your fluent-bit.conf file:
 
+{% tabs %}
+{% tab title="fluent-bit.conf" %}
 ```text
 [SERVICE]
     Flush        1
@@ -147,6 +194,26 @@ Put the following content in your fluent-bit.conf file:
     Name      stdout
     Match     *
 ```
+{% endtab %}
+
+{% tab title="fluent-bit.yaml" %}
+```yaml
+service:
+    flush: 1
+    parsers_file: parsers.conf
+pipeline:
+    inputs:
+        - name: syslog
+          parser: syslog-rfc3164
+          path: /tmp/fluent-bit.sock
+          mode: unix_udp
+          unix_perm: 0644
+    outputs:
+        - name: stdout
+          match: '*'
+```
+{% endtab %}
+{% endtabs %}
 
 then start Fluent Bit.