| # Prometheus Pushgateway |
| |
| Sometimes we need to monitor components which cannot be scraped. Examples: CLI |
| processes and task drivers. |
| |
| Prometheus [recommends](https://prometheus.io/docs/instrumenting/pushing/) using |
| the [Prometheus Pushgateway](https://github.com/prometheus/pushgateway) for |
| pushing time series from short-lived service-level batch jobs. |
| |
| The Prometheus Pushgateway exists to allow ephemeral and batch jobs to expose |
| their metrics to Prometheus. Since these kinds of jobs may not exist long enough |
| to be scraped, they can instead push their metrics to a Pushgateway. The |
| Pushgateway then exposes these metrics to Prometheus. |
| |
| |
| ## k8s service |
| |
| Skia runs a [pushgateway service](https://skia.googlesource.com/k8s-config/+/main/skia-public/pushgateway.yaml) |
| in k8s. The service runs with an auth-proxy container to provide authentication |
| to the pushgateway container ports. The pushgateway container also specifies a |
| [persistence.file](https://github.com/prometheus/pushgateway#run-it) to persist |
| metrics across container restarts. |
| |
| The service is hosted at pushgateway.skia.org |
| |
| |
| ## pushgateway.go |
| |
| Contains convenience methods for interacting with Skia's pushgateway service. |
