Grafana supports automatic rendering of panels and dashboards as PNG images. This allows Grafana to automatically generate images of your panels to include in [alert notifications]({{<relref"../alerting/notifications.md">}}).
Grafana supports automatic rendering of panels and dashboards as PNG images. This allows Grafana to automatically generate images of your panels to include in [alert notifications]({{<relref"../alerting/notifications.md">}}).
When an image is being rendered the PNG-image is temporarily written to the file system. When an image is rendered, the PNG image is temporary written to the `png` folder in the Grafana `data` folder.
While an image is being rendered, the PNG image is temporarily written to the file system. When the image is rendered, the PNG image is temporarily written to the `png` folder in the Grafana `data` folder.
A background job runs every 10 minutes and removes temporary images. You can configure how long an image should be stored before being removed by configuring the [temp-data-lifetime]({{<relref"../installation/configuration/#temp-data-lifetime">}}) setting.
A background job runs every 10 minutes and removes temporary images. You can configure how long an image should be stored before being removed by configuring the [temp-data-lifetime]({{<relref"../installation/configuration/#temp-data-lifetime">}}) setting.