CSV is a delimited text format for writing log records as rows of values. Its delimiter is configurable, so output can use commas, spaces, or tabs. section 5.5
Use CSV when file output needs compact values without field labels:
- The output process writes the record's root values; nested JSON is emitted as a single value. section 5.5
- Compare CSV with LTSV when labels are required, or with plain, MessagePack, and template output for other file representations. section 5.5
Tab-delimited file output
Configure Fluent Bit's file output with format csv and delimiter \t to write records to output1.csv. Matching output plugins can receive the same events simultaneously. section 5.5
Listing 5.5 Different file formats: simple-file.conf
[SERVICE]
flush 1
log_level error
[INPUT]
name http
listen 0.0.0.0
port 9881
tag http-in
[OUTPUT] #1
match *
name stdout
json_date_key received-date
json_date_format iso8601
format json_lines
[OUTPUT]
match *
name file #2
file output1.csv #3
format csv #4
delimiter \t #5
[OUTPUT]
match *
name file
file output1.ltsv
format ltsv #6
label_delimiter space #7
delimiter comma #8
[OUTPUT]
match *
name file
file output1.txt
format plain
[OUTPUT]
match *
name file
file output1.msgpack
format msgpack #9
[OUTPUT]
match *
name file
format template #10
file output1.templated.txt
template addressing={hello} value={val} --- {time} #11
Inspect the complete configuration alongside JSON-lines, LTSV, plain, MessagePack, and template outputs. section 5.5
