Add e2e tests for Grafana deployment

Fix jsonnet extension

Add changelogs to automated version updates

Signed-off-by: ArthurSens <arthursens2005@gmail.com>

Signed-off-by: Arthur Sens <arthursens2005@gmail.com>

Drop some of the metrics exposed by prometheus-adapter

Add the links to the changelogs of the freshly updated components to the
automated PR that does the update. This allow verifying that we are not
missing any important changes before merging the update. This happened
recently with node-exporter 1.2 which changed some flag names that we
took 3 months to update.

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>

jsonnet/node-exporter: adjust to node-exporter v1.2.0 arg name change

The current implementation of prometheus-adapter exposes a lot of
metrics about the health of its aggregated apiserver. The issue is that
the some of these metrics are not very useful in the context of
prometheus-adapter, and we currently can't avoid exposing them since
they are registered to the Kubernetes global Prometheus registry. Until
this is improved in upstream Kubernetes, we could benefit from dropping
some of the metrics that are not very useful.

Before this change, in a default kube-prometheus installation, we would
have 800+ series for prometheus-adapter against 400+, so we divided the
number of series by two will focusing on the most valuable metrics for
prometheus-adapter.

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>

In version [node-exporter v1.2.0](https://github.com/prometheus/node_exporter/releases/tag/v1.2.0

)
two argument name changes were introduced. While the old names still
work (with a deprecation warning), lets use the new names.

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

[bot] [main] Automated version update

Keep 'container_fs_.*' metrics from cAdvisor

[bot] [main] Automated version update

thanos: bump to latest and add `thanosPrometheusCommonDimensions`

This commit pulls latest changes from thanos mixins and sets `thanosPrometheusCommonDimensions`
to `namespace, pod` for k8s use case.

Refer https://github.com/thanos-io/thanos/pull/4508

 for more details.

Signed-off-by: Arunprasad Rajkumar <arajkuma@redhat.com>

Adjust dropped metrics from cAdvisor

This change drops pod-centric metrics without a non-empty 'container' label.

Previously we dropped pod-centric metrics without a (pod, namespace) label set
however these can be critical for debugging.

jsonnet: Support scraping the config-reloader for AlertManager and Pr…

[bot] [main] Automated version update

Always generate grafana-config secret

Since https://github.com/brancz/kubernetes-grafana/pull/115, upstream
grafana contains a non-empty config. Generate the grafana-config secret
unconditionally even if no user config is passed.

Run kubeconform against all  supported versions of Kubernetes

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>

[bot] [main] Automated version update

Fix import path in 'monitoring other namespaces' docs

Changed in https://github.com/prometheus-operator/kube-prometheus/commit/42a3ac0606818541e66a111693d3ff98c642f7a8 from `kube-prometheus` to `main`

[bot] [main] Automated version update

Adjust node filesystem space filling up warning threshold to 20%

Instead of running kubeconform on only one version of Kubernetes, it
would be better to run it against the 2 latests versions of Kubernetes
that kube-prometheus supports, so that the validation will be in line
with our support policy.

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>

Signed-off-by: Arunprasad Rajkumar <arajkuma@redhat.com>

[bot] [main] Automated version update