Fluentd Data Formatting

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Fluentd Data Formatting

In this lab, you have been provided with a Linux server that has Fluentd preinstalled. This Fluentd has been configured to send the output of the `/var/log/messages` log into the Fluentd stdout log. Your task is to modify the data coming from the `/var/log/mesages` to add a timestamp and also to add the tag used in the configuration file. Then, you need to test to ensure it is working and adding the date, timestamp, and tag to the output.

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Lab Info

Level

Intermediate

Last updated

Oct 16, 2025

Duration

30m

Challenge

Modify the Fluentd Configuration File to Add a Date and Timestamp and the Tag Used

You will need to edit the /etc/td-agent/td-agent.conf file and modify it so that the section that uses the messages.entries tag will add a date and timestamp to the output.

You should use the time format of %Y/%M/%D - %H:%M:%S for the stamp.

You will also need to add the tag to what is being output to the /var/log/td-agent/td-agent.log file.
Challenge

Test the Log Data Is Being Modified as Expected

Restart Fluentd, and test that the output to the /var/log/messages is being sent to the /var/log/td-agent/td-agent.log with the expected date and timestamp and also the tag that is being used.

Note: The logger command will send output to the /var/log/messages log and can be used for testing.

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