- The 404 request handler for the GCE Ingress load balancer now exports prometheus metrics, including:

  - `http_404_request_total` (the number of 404 requests handled)
  - `http_404_request_duration_ms` (the amount of time the server took to respond in ms)

  Also includes percentile groupings. The directory for the default 404 handler includes instructions on how to enable prometheus for monitoring and setting alerts.

- Integration testing now takes periodic Prometheus scrapes from the etcd server.

- github.com/prometheus/client_golang: [v1.11.0 → v1.12.1](https://github.com/prometheus/client_golang/compare/v1.11.0...v1.12.1)
- github.com/prometheus/common: [v0.28.0 → v0.32.1](https://github.com/prometheus/common/compare/v0.28.0...v0.32.1)
- github.com/prometheus/procfs: [v0.6.0 → v0.7.3](https://github.com/prometheus/procfs/compare/v0.6.0...v0.7.3)

### Other notable changes

* Bump Cluster Autoscaler to 0.6.3 version ([#59192](https://github.com/kubernetes/kubernetes/pull/59192), [@mwielgus](https://github.com/mwielgus))
* Fix a broken configuration of prometheus-to-sd for fluentd and event-exporter. ([#58959](https://github.com/kubernetes/kubernetes/pull/58959), [@loburm](https://github.com/loburm))

- github.com/prometheus/client_golang: [v1.7.1 → v1.11.0](https://github.com/prometheus/client_golang/compare/v1.7.1...v1.11.0)
- github.com/prometheus/common: [v0.10.0 → v0.26.0](https://github.com/prometheus/common/compare/v0.10.0...v0.26.0)
- github.com/prometheus/procfs: [v0.2.0 → v0.6.0](https://github.com/prometheus/procfs/compare/v0.2.0...v0.6.0)

* [stackdriver addon] Bump prometheus-to-sd to v0.5.0 to pick up security fixes. ([#75362](https://github.com/kubernetes/kubernetes/pull/75362), [@serathius](https://github.com/serathius))
    * [fluentd-gcp addon] Bump fluentd-gcp-scaler to v0.5.1 to pick up security fixes.
    * [fluentd-gcp addon] Bump event-exporter to v0.2.4 to pick up security fixes.
    * [fluentd-gcp addon] Bump prometheus-to-sd to v0.5.0 to pick up security fixes.

* The implicit registration of Prometheus metrics for request count and latency have been removed, and a plug-able interface was added. If you were using our client libraries in your own binaries and want these metrics, add the following to your imports in the main package: "k8s.io/pkg/client/metrics/prometheus".  ([#30638](https://github.com/kubernetes/kubernetes/pull/30638), [@krousey](https://github.com/krousey))

* The implicit registration of Prometheus metrics for workqueue has been removed, and a plug-able interface was added. If you were using workqueue in your own binaries and want these metrics, add the following to your imports in the main package: "k8s.io/pkg/util/workqueue/prometheus". ([#33792](https://github.com/kubernetes/kubernetes/pull/33792), [@caesarxuchao](https://github.com/caesarxuchao))

.Values.metrics.serviceMonitor.interval }} {{- end }} {{- if .Values.metrics.serviceMonitor.scrapeTimeout }} scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }} {{- end }} bearerTokenSecret: name: {{ template "minio.fullname" . }}-prometheus key: token namespaceSelector: matchNames: - {{ .Release.Namespace | quote }} selector: matchLabels: app: {{ include "minio.name" . }} release: {{ .Release.Name }} {{- end }} minio/templates/statefulset.yaml {{- if eq .Values.mode "distributed" }}...

- github.com/pelletier/go-toml: [v1.2.0](https://github.com/pelletier/go-toml/tree/v1.2.0)
- github.com/posener/complete: [v1.1.1](https://github.com/posener/complete/tree/v1.1.1)
- github.com/prometheus/tsdb: [v0.7.1](https://github.com/prometheus/tsdb/tree/v0.7.1)
- github.com/ryanuber/columnize: [9b3edd6](https://github.com/ryanuber/columnize/tree/9b3edd6)
- github.com/sean-/seed: [e2103e2](https://github.com/sean-/seed/tree/e2103e2)