Loki-stack monitoring

Monitoring system for metrics and logs collection, data visualization and real-time alerting.

Data range should be set before exporting the logs, for instructions on how to set data range please refer to the grafana documentation:
https://grafana.com/docs/grafana/latest/dashboards/use-dashboards/#common-time-range-controls

1. Logs query

In order to aggregate all logs from the desired namespace, use the following query:

{namespace="$NAMESPACE"} | line_format "{{.pod}} {{ __line__ }}"

Replace the $NAMESPACE with the actual namespace name

To make the above query more specific, you can use a filter with (for eg.) ID:

{namespace="$NAMESPACE"} | line_format "{{.pod}} {{ __line__ }}" |= "$ID"

2. Grafana logs exporting

Open Grafana and navigate to the desired dashboard containing the logs you want to export.
Click on the "Explore" button on the top menu to access the Explorer.
In the Explorer, select the Loki data source from the drop-down menu on the top left, if it's not already selected.
Specify the log query or filter in the query input field. You can use labels, keywords, or other parameters to filter the logs according to your requirements.
Adjust the time range using the time picker located at the top right to specify the time period for which you want to export logs.
Once you have configured the query and time range, click on the "Run" button to execute the query and fetch the logs.
The logs will be displayed in the table format below the query input field.
Click on the "Inspect" button on the top right corner of the table to open the Inspector view.
In the Inspector, navigate to the "Data" tab.
Under the "Data" tab, you will see a section called "Raw JSON Data" which shows the logs in JSON format.
Scroll down to the bottom of the "Data" tab and locate the "Download CSV/Logs" button.
Click on the "Download CSV/Logs" button to export the logs in CSV format.

3. Learn more

Below you'll find useful documentation about various aspects of these monitoring tools: