Fluent-bit playground

fluent-bit.conf

[SERVICE]
    flush         5
    log_level     info
    daemon        off
    parsers_file  parsers.conf

[INPUT]
    Name              tail
    Path              /test.log
    read_from_head    true
    multiline.parser  docker
    tag               foo.pino.*

[FILTER]
    Name   multiline
    match  *.pino.*
    multiline.key_content log
    multiline.parser multiline

[OUTPUT]
    Name             stdout
    Match            *

go.sh

docker run -it --rm \
  -v `pwd`/fluent-bit.conf:/fluent-bit/etc/fluent-bit.conf \
  -v `pwd`/parsers.conf:/fluent-bit/etc/parsers.conf \
  -v `pwd`/test.log:/test.log fluent/fluent-bit:1.8

parsers.conf

[PARSER]
    Name                docker
    Format              json
    Time_Key            time
    Time_Format         %Y-%m-%dT%H:%M:%S.%LZ

[MULTILINE_PARSER]
    Name                multiline
    Type                regex
    flush_timeout       1000
    rule "start_state"  "/^[^\s]/" "cont"
    rule "cont"         "/^\s+/"   "cont"

test.log

{"log":"INFO [2021-11-10 20:00:28.717 +0000] (8 on call-home-server-int-758dc96f47-kgzxp): Mapped {/api/configuration/phoneHome, POST} route\n","stream":"stdout","time":"2021-11-10T20:00:28.719743819Z"}
{"log":"    context: \"RouterExplorer\"\n","stream":"stdout","time":"2021-11-10T20:00:28.719747805Z"}
{"log":"INFO [2021-11-10 20:00:28.717 +0000] (8 on call-home-server-int-758dc96f47-kgzxp): Nest application successfully started\n","stream":"stdout","time":"2021-11-10T20:00:28.719772848Z"}
{"log":"    context: \"NestApplication\"\n","stream":"stdout","time":"2021-11-10T20:00:28.719777187Z"}
{"log":"ERROR [2021-11-10 20:06:51.227 +0000] (8 on call-home-server-int-758dc96f47-kgzxp): Unhandled Error occurred\n","stream":"stdout","time":"2021-11-10T20:06:51.22965894Z"}
{"log":"    context: \"ErrorFilter\"\n","stream":"stdout","time":"2021-11-10T20:06:51.22968884Z"}
{"log":"    req: {\n","stream":"stdout","time":"2021-11-10T20:06:51.229692196Z"}