chore(PET-574): create one ref only kube-prometheus clone

We need to install kube prometheus using flux cd. The way it does it is via git clone --mirror which fetches all objects/deltas from this MASSIVE bintami monorepo where they keep all possible helm charts.
This times out in flux cd (takes well over 15 minutes).
To avoid that we just copied the state of one folder (kube-prometheus) at our targeted version (8.9.0) of this helm chart as per this commit:  bitnami/charts@e2bb914

The copying was done manually.

bitnami/kube-prometheus/.helmignore

@@ -0,0 +1,21 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj

bitnami/kube-prometheus/Chart.lock

@@ -0,0 +1,12 @@
+dependencies:
+- name: node-exporter
+  repository: oci://registry-1.docker.io/bitnamicharts
+  version: 3.3.4
+- name: kube-state-metrics
+  repository: oci://registry-1.docker.io/bitnamicharts
+  version: 3.4.0
+- name: common
+  repository: oci://registry-1.docker.io/bitnamicharts
+  version: 2.2.4
+digest: sha256:047847036d3ecd7a1495f1c664ce16874667e9e10a6d1561243543dfc812b7de
+generated: "2023-04-20T15:40:35.887583+01:00"

bitnami/kube-prometheus/Chart.yaml

@@ -0,0 +1,38 @@
+annotations:
+  category: Analytics
+  licenses: Apache-2.0
+apiVersion: v2
+appVersion: 0.64.0
+dependencies:
+  - condition: exporters.enabled,exporters.node-exporter.enabled
+    name: node-exporter
+    repository: oci://registry-1.docker.io/bitnamicharts
+    version: 3.x.x
+  - condition: exporters.enabled,exporters.kube-state-metrics.enabled
+    name: kube-state-metrics
+    repository: oci://registry-1.docker.io/bitnamicharts
+    version: 3.x.x
+  - name: common
+    repository: oci://registry-1.docker.io/bitnamicharts
+    tags:
+      - bitnami-common
+    version: 2.x.x
+description: Prometheus Operator provides easy monitoring definitions for Kubernetes services and deployment and management of Prometheus instances.
+home: https://github.com/bitnami/charts/tree/main/bitnami/kube-prometheus
+icon: https://bitnami.com/assets/stacks/prometheus-operator/img/prometheus-operator-stack-220x234.png
+keywords:
+  - prometheus
+  - alertmanager
+  - operator
+  - monitoring
+kubeVersion: '>= 1.16.0-0'
+maintainers:
+  - name: Bitnami
+    url: https://github.com/bitnami/charts
+name: kube-prometheus
+sources:
+  - https://github.com/bitnami/containers/tree/main/bitnami/prometheus-operator
+  - https://github.com/bitnami/containers/tree/main/bitnami/prometheus
+  - https://github.com/bitnami/containers/tree/main/bitnami/alertmanager
+  - https://github.com/prometheus-operator/kube-prometheus
+version: 8.9.0

bitnami/kube-prometheus/crds/crd-prometheusrules.yaml

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+# https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.63.0/example/prometheus-operator-crd/monitoring.coreos.com_prometheusrules.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.11.1
+  creationTimestamp: null
+  name: prometheusrules.monitoring.coreos.com
+spec:
+  group: monitoring.coreos.com
+  names:
+    categories:
+    - prometheus-operator
+    kind: PrometheusRule
+    listKind: PrometheusRuleList
+    plural: prometheusrules
+    shortNames:
+    - promrule
+    singular: prometheusrule
+  scope: Namespaced
+  versions:
+  - name: v1
+    schema:
+      openAPIV3Schema:
+        description: PrometheusRule defines recording and alerting rules for a Prometheus
+          instance
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation
+              of an object. Servers should convert recognized schemas to the latest
+              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this
+              object represents. Servers may infer this from the endpoint the client
+              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: Specification of desired alerting rule definitions for Prometheus.
+            properties:
+              groups:
+                description: Content of Prometheus rule file
+                items:
+                  description: RuleGroup is a list of sequentially evaluated recording
+                    and alerting rules.
+                  properties:
+                    interval:
+                      description: Interval determines how often rules in the group
+                        are evaluated.
+                      pattern: ^(0|(([0-9]+)y)?(([0-9]+)w)?(([0-9]+)d)?(([0-9]+)h)?(([0-9]+)m)?(([0-9]+)s)?(([0-9]+)ms)?)$
+                      type: string
+                    name:
+                      description: Name of the rule group.
+                      minLength: 1
+                      type: string
+                    partial_response_strategy:
+                      description: 'PartialResponseStrategy is only used by ThanosRuler
+                        and will be ignored by Prometheus instances. More info: https://github.com/thanos-io/thanos/blob/main/docs/components/rule.md#partial-response'
+                      pattern: ^(?i)(abort|warn)?$
+                      type: string
+                    rules:
+                      description: List of alerting and recording rules.
+                      items:
+                        description: 'Rule describes an alerting or recording rule
+                          See Prometheus documentation: [alerting](https://www.prometheus.io/docs/prometheus/latest/configuration/alerting_rules/)
+                          or [recording](https://www.prometheus.io/docs/prometheus/latest/configuration/recording_rules/#recording-rules)
+                          rule'
+                        properties:
+                          alert:
+                            description: Name of the alert. Must be a valid label
+                              value. Only one of `record` and `alert` must be set.
+                            type: string
+                          annotations:
+                            additionalProperties:
+                              type: string
+                            description: Annotations to add to each alert. Only valid
+                              for alerting rules.
+                            type: object
+                          expr:
+                            anyOf:
+                            - type: integer
+                            - type: string
+                            description: PromQL expression to evaluate.
+                            x-kubernetes-int-or-string: true
+                          for:
+                            description: Alerts are considered firing once they have
+                              been returned for this long.
+                            pattern: ^(0|(([0-9]+)y)?(([0-9]+)w)?(([0-9]+)d)?(([0-9]+)h)?(([0-9]+)m)?(([0-9]+)s)?(([0-9]+)ms)?)$
+                            type: string
+                          labels:
+                            additionalProperties:
+                              type: string
+                            description: Labels to add or overwrite.
+                            type: object
+                          record:
+                            description: Name of the time series to output to. Must
+                              be a valid metric name. Only one of `record` and `alert`
+                              must be set.
+                            type: string
+                        required:
+                        - expr
+                        type: object
+                      type: array
+                  required:
+                  - name
+                  - rules
+                  type: object
+                type: array
+                x-kubernetes-list-map-keys:
+                - name
+                x-kubernetes-list-type: map
+            type: object
+        required:
+        - spec
+        type: object
+    served: true
+    storage: true