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Revert "pipelines: filters: parser: Add a nest_under parameter" #1564

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Jan 23, 2025
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Revert "pipelines: filters: parser: Add a nest_under parameter" #1564

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40 changes: 0 additions & 40 deletions pipeline/filters/parser.md
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@ The plugin supports the following configuration parameters:
| Parser | Specify the parser name to interpret the field. Multiple _Parser_ entries are allowed \(one per line\). | |
| Preserve\_Key | Keep original `Key_Name` field in the parsed result. If false, the field will be removed. | False |
| Reserve\_Data | Keep all other original fields in the parsed result. If false, all other original fields will be removed. | False |
| Nest\_Under | Specify the name of the field to nest parsed records under. | |

## Getting Started

Expand Down Expand Up @@ -157,42 +156,3 @@ Fluent Bit v2.1.1
[0] dummy.data: [[1687122779.296906553, {}], {"INT"=>"100", "FLOAT"=>"0.5", "BOOL"=>"true", "STRING"=>"This is example", "data"=>"100 0.5 true This is example", "key1"=>"value1", "key2"=>"value2"}]
[0] dummy.data: [[1687122780.297475803, {}], {"INT"=>"100", "FLOAT"=>"0.5", "BOOL"=>"true", "STRING"=>"This is example", "data"=>"100 0.5 true This is example", "key1"=>"value1", "key2"=>"value2"}]
```

### Nest parsed fields

Instead of expanding parsed fields at the root of the object,
you can nest them under a new field defined by `Nest_Under`:

```python copy
[SERVICE]
Parsers_File /fluent-bit/etc/parsers.conf

[INPUT]
Name Dummy
Dummy {"log":"error: my error","element":"{\"a\":\"b\",\"c\":{\"x\":\"y\"}}"}
Tag dummy.data

[FILTER]
Name parser
Match dummy.*
Parser json
Key_Name element
Nest_Under parsed

[OUTPUT]
Name stdout
Match *
```

This configuration results in the following output:

```text
$ fluent-bit -c dummy.conf
Fluent Bit v2.1.1
* Copyright (C) 2015-2022 The Fluent Bit Authors
...
...
[0] dummy.data: [[1736759501.208000317, {}], {"parsed"=>{"a"=>"b", "c"=>{"x"=>"y"}}}]
[0] dummy.data: [[1736759502.207935361, {}], {"parsed"=>{"a"=>"b", "c"=>{"x"=>"y"}}}]
[0] dummy.data: [[1736759503.207765898, {}], {"parsed"=>{"a"=>"b", "c"=>{"x"=>"y"}}}]
```
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