Journald

Systemd-journald is a logging service that centralizes the collection, storage, and management of system and application logs. It organizes logs into structured, indexed journals, enabling efficient querying and analysis of events from diverse sources across the system.

Prerequisites

Middleware Host Agent (MW Agent) must be installed on your local machine. To install the MW Agent, see our Installation Guide.

Setup

Follow these steps to set up the Journald integration:

In the Middleware UI, navigate to the Integrations page
Click on the Journald integration and you will see some settings as shown below:

Advanced features

Below are the configuration options you will see:

Select Host

Choose the host where journald logs are accessible.

Specify Journal Directory

By default the Agent looks for the journal at the following locations:

/var/log/journal

If your journal is located elsewhere, add a directory parameter with the corresponding journal path.

Define Units

By specifying units, you can filter and collect logs only from the relevant systemd services you are interested in. This helps reduce noise and enhances observability by focusing on critical logs. You can define a comma-separated list of units.

Examples:

myservice, nginx, docker

How to Identify Units :

To find available units on your system, you can run the following command:

systemctl list-units --type=service

Log Priority

Configure the filter to include logs based on message priorities or priority ranges.

Once this configuration is complete, you should see the logs in the Logs section of your Middleware account. You can add the filter source: journald to view only journald logs.

Troubleshooting

If you do not see the Integrations Menu in Middlware, that means your account has not been granted Installation permissions. Contact your system administrator to add the Installation permission to your user role in Settings.