File

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The file output plugin allows to write the data received through the input plugin to file.
Configuration Parameters
The plugin supports the following configuration parameters:
Key
Description
Path
File path to output. If not set, the filename will be tag name.
Format
The format of the file content. See also Format section. Default: out_file.
Format
out_file format
Output time, tag and json records. There is no configuration parameters for out_file.
tag: [time, {"key1":"value1", "key2":"value2", "key3":"value3"}]
csv format
Output the records as csv. Csv supports an additional configuration parameter.
Key
Description
Delimiter
The character to separate each data. Default: ','
time[delimiter]"value1"[delimiter]"value2"[delimiter]"value3"
ltsv format
Output the records as LTSV. LTSV supports an additional configuration parameter.
Key
Description
Delimiter
The character to separate each pair. Default: '\t'(TAB)
Label_Delimiter
The character to separate label and the value. Default: ':'
field1[label_delimiter]value1[delimiter]field2[label_delimiter]value2\n
Getting Started
You can run the plugin from the command line or through the configuration file:
Command Line
From the command line you can let Fluent Bit count up a data with the following options:
$ fluent-bit -i cpu -o file -p path=output.txt
Configuration File
In your main configuration file append the following Input & Output sections:
[INPUT]
    Name cpu
    Tag  cpu
​
[OUTPUT]
    Name file
    Match *
    Path output.txt

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Key	Description
Path	File path to output. If not set, the filename will be tag name.
Format	The format of the file content. See also Format section. Default: out_file.

Key	Description
Delimiter	The character to separate each data. Default: ','

Key	Description
Delimiter	The character to separate each pair. Default: '\t'(TAB)
Label_Delimiter	The character to separate label and the value. Default: ':'