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Fixing shell commands, standardizing YAML first in kernel logs docs. Fixes #1813. #1814

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Jul 1, 2025
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Fixing shell commands, standardizing YAML first in kernel logs docs. Fixes #1813. #1814

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58 changes: 37 additions & 21 deletions pipeline/inputs/kernel-logs.md
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Original file line number Diff line number Diff line change
Expand Up @@ -15,19 +15,35 @@ To start getting the Linux Kernel messages, you can run the plugin from the comm

### Command line

```bash
bin/fluent-bit -i kmsg -t kernel -o stdout -m '*'
```shell
$ fluent-bit -i kmsg -t kernel -o stdout -m '*'
```

Which returns output similar to:

```text
Fluent Bit v1.x.x
* Copyright (C) 2019-2020 The Fluent Bit Authors
* Copyright (C) 2015-2018 Treasure Data
Fluent Bit v4.0.0
* Copyright (C) 2015-2025 The Fluent Bit Authors
* Fluent Bit is a CNCF sub-project under the umbrella of Fluentd
* https://fluentbit.io

______ _ _ ______ _ _ ___ _____
| ___| | | | | ___ (_) | / || _ |
| |_ | |_ _ ___ _ __ | |_ | |_/ /_| |_ __ __/ /| || |/' |
| _| | | | | |/ _ \ '_ \| __| | ___ \ | __| \ \ / / /_| || /| |
| | | | |_| | __/ | | | |_ | |_/ / | |_ \ V /\___ |\ |_/ /
\_| |_|\__,_|\___|_| |_|\__| \____/|_|\__| \_/ |_(_)___/


[2025/06/30 16:12:06] [ info] [fluent bit] version=4.0.0, commit=3a91b155d6, pid=91577
[2025/06/30 16:12:06] [ info] [storage] ver=1.5.2, type=memory, sync=normal, checksum=off, max_chunks_up=128
[2025/06/30 16:12:06] [ info] [simd ] disabled
[2025/06/30 16:12:06] [ info] [cmetrics] version=0.9.9
[2025/06/30 16:12:06] [ info] [ctraces ] version=0.6.2
[2025/06/30 16:12:06] [ info] [input:health:health.0] initializing
[2025/06/30 16:12:06] [ info] [input:health:health.0] storage_strategy='memory' (memory only)
[2025/06/30 16:12:06] [ info] [sp] stream processor started
[2025/06/30 16:12:06] [ info] [output:stdout:stdout.0] worker #0 started
[0] kernel: [1463421823, {"priority"=>3, "sequence"=>1814, "sec"=>11706, "usec"=>732233, "msg"=>"ERROR @wl_cfg80211_get_station : Wrong Mac address, mac = 34:a8:4e:d3:40:ec profile =20:3a:07:9e:4a:ac"}]
[1] kernel: [1463421823, {"priority"=>3, "sequence"=>1815, "sec"=>11706, "usec"=>732300, "msg"=>"ERROR @wl_cfg80211_get_station : Wrong Mac address, mac = 34:a8:4e:d3:40:ec profile =20:3a:07:9e:4a:ac"}]
[2] kernel: [1463421829, {"priority"=>3, "sequence"=>1816, "sec"=>11712, "usec"=>729728, "msg"=>"ERROR @wl_cfg80211_get_station : Wrong Mac address, mac = 34:a8:4e:d3:40:ec profile =20:3a:07:9e:4a:ac"}]
Expand All @@ -39,34 +55,34 @@ As described previously, the plugin processed all messages that the Linux Kernel

### Configuration file

In your main configuration file append the following `Input` and `Output` sections:
In your main configuration file append the following:

{% tabs %}
{% tab title="fluent-bit.conf" %}

```python
[INPUT]
Name kmsg
Tag kernel

[OUTPUT]
Name stdout
Match *
```

{% endtab %}

{% tab title="fluent-bit.yaml" %}

```yaml
pipeline:
inputs:
- name: kmsg
tag: kernel

outputs:
- name: stdout
match: '*'
```

{% endtab %}
{% endtabs %}
{% tab title="fluent-bit.conf" %}

```text
[INPUT]
Name kmsg
Tag kernel

[OUTPUT]
Name stdout
Match *
```

{% endtab %}
{% endtabs %}