Fluentd

Directives

Directive	Description
source	Tells fluentd to receive/source log events
match	Match log events to other operations (Output)
filter	Controls which events are handled by 1 or more processes (referred to as pipeline)
@include	Bring in other config files (Just like import in conventional code)
label	Provides a grouping mechanism for log events
system	related to fluentd internal configs (ex: setting of log levels)

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sending a log event to fluentd service

curl -H "Content-type: application/json"  -d '{"check_this_out":"This is a test message"}' http://localhost:8888/debug.test

# Check the logs to validate
cat /var/log/fluent/fluentd.log

hello-world config usage

# Receive log events from port 18080
fluentd -c hello-world.conf

# Generating an event
curl -H "Content-type: application/json" -d '{"Hello": "World"}' 'localhost:18080'

Validating config files

fluentd -c <conf> --dry-run

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