Introduction

To be able to detect things, crowdsec needs to access logs. DataSources are configured via the acquisition configuration, or specified via the command-line when performing cold logs analysis.

Name	Type	Stream	One-shot
file	single files, glob expressions and .gz files	yes	yes
journald	journald via filter	yes	yes
aws cloudwatch	single stream or log group	yes	yes
syslog service	read logs received via syslog protocol	yes	no

While various data sources are supported, they all share the same common configuration structure :

source: <source>
labels:
 type: syslog
#log_level: <log_level>
<specific>:
  ...

All the data sources supports :

• a log_level to configure verbosity of given source (trace, debug, info, warning, error)
• a labels map with a mandatory type field
• a source indicating which implementation the configuration referes to (file, journald, syslog, cloudwatch ...)
• and a section that is specific to the data source implemention, see dedicated sections bellow

danger

The labels and type subsection are crucial as this is what is going to indicate which parsers pickup the log line.