Prometheus+Thanos - metrics collection

## Config for other clusters
prometheus:
  enabled: true
  prometheusSpec:
    disableCompaction: false
    replicas: 1
    retention: 90d
    externalLabels:
      geo: eu
      region: west4
      cluster: staging
    image:
      repository: prometheus/prometheus
      tag: v2.41.0
    thanos:
      tag: v0.30.1
      objectStorageConfig:
        key: thanos_gcs.yml
        name: thanos-gcs-storage
    additionalArgs:
    - name: storage.tsdb.min-block-duration
      value: 5m
    - name: storage.tsdb.max-block-duration
      value: 5m
    additionalScrapeConfigs:
    - job_name: 'kubernetes-service-endpoints'
      honor_labels: true
      kubernetes_sd_configs:
      - role: endpoints
      relabel_configs:
        # select only those endpoints whose service has "prometheus.io/scrape: true" annotation
        - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
          action: keep
          regex: true
        # set the metrics_path to the path specified in "prometheus.io/path: <metric path>" annotation.
        - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
          action: replace
          target_label: __metrics_path__
          regex: (.+)
        # set the scrapping port to the port specified in "prometheus.io/port: <port>" annotation and set address accordingly.
        - source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
          action: replace
          target_label: __address__
          regex: ([^:]+)(?::\d+)?;(\d+)
          replacement: $1:$2
        - action: labelmap
          regex: __meta_kubernetes_service_label_(.+)
        - source_labels: [__meta_kubernetes_namespace]
          action: replace
          target_label: kubernetes_namespace
        - source_labels: [__meta_kubernetes_service_name]
          action: replace
          target_label: kubernetes_name
alertmanager:
  enabled: true
  alertmanagerSpec:
    image:
      repository: prometheus/alertmanager
      tag: v0.25.0
grafana:
  enabled: false