TCP & TLS

The tcp output plugin allows to send records to a remote TCP server. The payload can be formatted in different ways as required.
Configuration Parameters
Key
Description
default
Host
Target host where Fluent-Bit or Fluentd are listening for Forward messages.
127.0.0.1
Port
TCP Port of the target service.
5170
Format
Specify the data format to be printed. Supported formats are msgpack json, json_lines and json_stream.
msgpack
json_date_key
Specify the name of the time key in the output record. To disable the time key just set the value to false.
date
json_date_format
Specify the format of the date. Supported formats are double, epoch and iso8601 (eg: 2018-05-30T09:39:52.000681Z)
double
TLS Configuration Parameters
The following parameters are available to configure a secure channel connection through TLS:
Key
Description
Default
tls
Enable or disable TLS support
Off
tls.verify
Force certificate validation
On
tls.debug
Set TLS debug verbosity level. It accept the following values: 0 (No debug), 1 (Error), 2 (State change), 3 (Informational) and 4 Verbose
1
tls.ca_file
Absolute path to CA certificate file
​
tls.crt_file
Absolute path to Certificate file.
​
tls.key_file
Absolute path to private Key file.
​
tls.key_passwd
Optional password for tls.key_file file.
​
Command Line
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$ bin/fluent-bit -i cpu -o tcp://127.0.0.1:5170 -p format=json_lines -v
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We have specified to gather CPU usage metrics and send them in JSON lines mode to a remote end-point using netcat service, e.g:
Start the TCP listener
Run the following in a separate terminal, netcat will start listening for messages on TCP port 5170
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$ nc -l 5170
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Start Fluent Bit
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$ bin/fluent-bit -i cpu -o stdout -p format=msgpack -v
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Fluent Bit v1.x.x
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* Copyright (C) 2019-2020 The Fluent Bit Authors
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* Copyright (C) 2015-2018 Treasure Data
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* Fluent Bit is a CNCF sub-project under the umbrella of Fluentd
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* https://fluentbit.io
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​
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[2016/10/07 21:52:01] [ info] [engine] started
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[0] cpu.0: [1475898721, {"cpu_p"=>0.500000, "user_p"=>0.250000, "system_p"=>0.250000, "cpu0.p_cpu"=>0.000000, "cpu0.p_user"=>0.000000, "cpu0.p_system"=>0.000000, "cpu1.p_cpu"=>0.000000, "cpu1.p_user"=>0.000000, "cpu1.p_system"=>0.000000, "cpu2.p_cpu"=>0.000000, "cpu2.p_user"=>0.000000, "cpu2.p_system"=>0.000000, "cpu3.p_cpu"=>1.000000, "cpu3.p_user"=>0.000000, "cpu3.p_system"=>1.000000}]
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[1] cpu.0: [1475898722, {"cpu_p"=>0.250000, "user_p"=>0.250000, "system_p"=>0.000000, "cpu0.p_cpu"=>0.000000, "cpu0.p_user"=>0.000000, "cpu0.p_system"=>0.000000, "cpu1.p_cpu"=>1.000000, "cpu1.p_user"=>1.000000, "cpu1.p_system"=>0.000000, "cpu2.p_cpu"=>0.000000, "cpu2.p_user"=>0.000000, "cpu2.p_system"=>0.000000, "cpu3.p_cpu"=>0.000000, "cpu3.p_user"=>0.000000, "cpu3.p_system"=>0.000000}]
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[2] cpu.0: [1475898723, {"cpu_p"=>0.750000, "user_p"=>0.250000, "system_p"=>0.500000, "cpu0.p_cpu"=>2.000000, "cpu0.p_user"=>1.000000, "cpu0.p_system"=>1.000000, "cpu1.p_cpu"=>0.000000, "cpu1.p_user"=>0.000000, "cpu1.p_system"=>0.000000, "cpu2.p_cpu"=>1.000000, "cpu2.p_user"=>0.000000, "cpu2.p_system"=>1.000000, "cpu3.p_cpu"=>0.000000, "cpu3.p_user"=>0.000000, "cpu3.p_system"=>0.000000}]
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[3] cpu.0: [1475898724, {"cpu_p"=>1.000000, "user_p"=>0.750000, "system_p"=>0.250000, "cpu0.p_cpu"=>1.000000, "cpu0.p_user"=>1.000000, "cpu0.p_system"=>0.000000, "cpu1.p_cpu"=>2.000000, "cpu1.p_user"=>1.000000, "cpu1.p_system"=>1.000000, "cpu2.p_cpu"=>1.000000, "cpu2.p_user"=>1.000000, "cpu2.p_system"=>0.000000, "cpu3.p_cpu"=>1.000000, "cpu3.p_user"=>1.000000, "cpu3.p_system"=>0.000000}]
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Syslog

Treasure Data

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Contents

Configuration Parameters

TLS Configuration Parameters

Command Line