Filebeat and systemdedit

The DEB and RPM packages include a service unit for Linux systems with systemd. On these systems, you can manage Filebeat by using the usual systemd commands.

Start and stop Filebeatedit

Use systemctl to start or stop Filebeat:

systemctl start filebeat
systemctl stop filebeat

By default, the Filebeat service starts automatically when the system boots. To enable or disable auto start use:

systemctl enable filebeat
systemctl disable filebeat

Filebeat status and logsedit

To get the service status, use systemctl:

systemctl status filebeat

Logs are stored by default in journald. To view the Logs, use journalctl:

journalctl -u filebeat.service

The unit file included in the packages sets the -e flag by default. This flag makes Filebeat log to stderr and disables other log outputs. Systemd stores all output sent to stderr in journald.

Customize systemd unit for Filebeatedit

The systemd service unit file includes environment variables that you can override to change the default options.

VariableDescriptionDefault value

BEAT_LOG_OPTS

Log options

-e

BEAT_CONFIG_OPTS

Flags for configuration file path

-c /etc/filebeat/filebeat.yml

BEAT_PATH_OPTS

Other paths

-path.home /usr/share/filebeat -path.config /etc/filebeat -path.data /var/lib/filebeat -path.logs /var/log/filebeat

To override these variables, create a drop-in unit file in the /etc/systemd/system/filebeat.service.d directory.

For example a file with the following content placed in /etc/systemd/system/filebeat.service.d/debug.conf would override BEAT_LOG_OPTS to enable debug for Elasticsearch output.

[Service]
Environment="BEAT_LOG_OPTS=-e -d elasticsearch"

To change the logging output from the Filebeat configuration file, empty the environment variable. For example:

[Service]
Environment="BEAT_LOG_OPTS="

To apply your changes, reload the systemd configuration and restart the service:

systemctl daemon-reload
systemctl restart filebeat

It is recommended that you use a configuration management tool to include drop-in unit files. If you need to add a drop-in manually, use systemctl edit filebeat.service.