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The controller exports several metrics in the OpenMetrics compatible format. They can be scraped by all sorts of monitoring solutions (e.g. Prometheus) or stored in a database. Because the controller is based on controller-runtime, all the default metrics as well as the following controller-specific custom metrics are exported:
| Metrics name | Type | Description |
|---|---|---|
| deployment_duration_seconds | Histogram | How long a single deployment takes in seconds. |
| number_of_changed_objects | Gauge | How many objects have been changed by a single deployment. |
| number_of_deleted_objects | Gauge | How many objects have been deleted by a single deployment. |
| number_of_errors | Gauge | How many errors are related to a single deployment. |
| number_of_images | Gauge | Number of images of a single deployment. |
| number_of_orphan_objects | Gauge | How many orphans are related to a single deployment. |
| number_of_warnings | Gauge | How many warnings are related to a single deployment. |
| prune_duration_seconds | Histogram | How long a single prune takes in seconds. |
| validate_duration_seconds | Histogram | How long a single validate takes in seconds. |
| deployment_interval_seconds | Gauge | The configured deployment interval of a single deployment. |
| dry_run_enabled | Gauge | Is dry-run enabled for a single deployment. |
| last_object_status | Gauge | Last object status of a single deployment. Zero means failure and one means success. |
| prune_enabled | Gauge | Is pruning enabled for a single deployment. |
| delete_enabled | Gauge | Is deletion enabled for a single deployment. |
| source_spec | Gauge | The configured source spec of a single deployment exported via labels. |