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Access Kyma application logs

Get insights into your applications (microservices, Functions...) by viewing the respective logs.

To check out real-time logs immediately, use the Kubernetes functionalities - either with kubectl, or in Kyma Dashboard.

If you want to see historical logs and use additional features, view the logs as aggregated by Loki. In Grafana, you can see a visual representation of your logs, while Loki itself provides an API for programmatic access.

Kubernetes logs in Kyma Dashboard

You can view real-time logs in Kyma Dashboard:

Open Kyma Dashboard and select the Namespace.
Access the Pod and select the container.
Click View Logs.

Kubernetes logs using kubectl

Alternatively, to see real-time logs in your terminal, run the following command:

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kubectl logs {POD_NAME} --namespace {NAMESPACE_NAME} --container {CONTAINER_NAME}

Loki logs in Grafana UI

NOTE: Loki is deprecated and is planned to be removed. If you want to install a custom Loki stack, take a look at Installing a custom Loki stack in Kyma.

NOTE: Prometheus and Grafana are deprecated and are planned to be removed. If you want to install a custom stack, take a look at Install a custom kube-prometheus-stack in Kyma.

To see a visual representation and search for specific logs, follow these steps:

In the Cluster Overview of Kyma Dashboard, go to Observability and open Grafana.
In Grafana's Explore section, select Loki as data source.
Enter a query following the query language guidelines, for example:
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```
{namespace="kyma-system"} |= "info"
```

Loki logs using Loki API

NOTE: Loki is deprecated and is planned to be removed. If you want to install a custom Loki stack, take a look at Installing a custom Loki stack in Kyma.

To access the logs through the Loki API directly, follow these steps:

Configure port forwarding with the following command:

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kubectl port-forward -n kyma-system service/logging-loki 3100:3100

For example, to get the first 1000 lines of info logs for components in the kyma-system Namespace, run the following command:

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curl -X GET -G 'http://localhost:3100/loki/api/v1/query' --data-urlencode 'query={namespace="kyma-system"}' --data-urlencode 'limit=1000' --data-urlencode 'regexp=info'