{{- $namespace := .Release.Namespace }}
apiVersion: v1
kind: ConfigMap
metadata:
  name: prometheus
  labels:
    app: prometheus
    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
data:
  prometheus.yml: |-
    global:
      scrape_interval: 15s
    scrape_configs:

    - job_name: 'istio-mesh'
      # Override the global default and scrape targets from this job every 5 seconds.
      scrape_interval: 5s

      kubernetes_sd_configs:
      - role: endpoints

      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: {{ .Release.Namespace }};istio-mixer;prometheus

    - job_name: 'envoy'
      # Override the global default and scrape targets from this job every 5 seconds.
      scrape_interval: 5s
      # metrics_path defaults to '/metrics'
      # scheme defaults to 'http'.

      kubernetes_sd_configs:
      - role: endpoints

      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: {{ .Release.Namespace }};istio-mixer;statsd-prom

    - job_name: 'mixer'
      # Override the global default and scrape targets from this job every 5 seconds.
      scrape_interval: 5s
      # metrics_path defaults to '/metrics'
      # scheme defaults to 'http'.

      kubernetes_sd_configs:
      - role: endpoints

      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: {{ .Release.Namespace }};istio-mixer;http-monitoring

    - job_name: 'pilot'
      # Override the global default and scrape targets from this job every 5 seconds.
      scrape_interval: 5s
      # metrics_path defaults to '/metrics'
      # scheme defaults to 'http'.

      kubernetes_sd_configs:
      - role: endpoints

      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: {{ .Release.Namespace }};istio-pilot;http-monitoring

    # scrape config for API servers
    - job_name: 'kubernetes-apiservers'
      kubernetes_sd_configs:
      - role: endpoints
      scheme: https
      tls_config:
        ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: default;kubernetes;https

    # scrape config for nodes (kubelet)
    - job_name: 'kubernetes-nodes'
      scheme: https
      tls_config:
        ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      kubernetes_sd_configs:
      - role: node
      relabel_configs:
      - action: labelmap
        regex: __meta_kubernetes_node_label_(.+)
      - target_label: __address__
        replacement: kubernetes.default.svc:443
      - source_labels: [__meta_kubernetes_node_name]
        regex: (.+)
        target_label: __metrics_path__
        replacement: /api/v1/nodes/${1}/proxy/metrics

    # Scrape config for Kubelet cAdvisor.
    #
    # This is required for Kubernetes 1.7.3 and later, where cAdvisor metrics
    # (those whose names begin with 'container_') have been removed from the
    # Kubelet metrics endpoint.  This job scrapes the cAdvisor endpoint to
    # retrieve those metrics.
    #
    # In Kubernetes 1.7.0-1.7.2, these metrics are only exposed on the cAdvisor
    # HTTP endpoint; use "replacement: /api/v1/nodes/${1}:4194/proxy/metrics"
    # in that case (and ensure cAdvisor's HTTP server hasn't been disabled with
    # the --cadvisor-port=0 Kubelet flag).
    #
    # This job is not necessary and should be removed in Kubernetes 1.6 and
    # earlier versions, or it will cause the metrics to be scraped twice.
    - job_name: 'kubernetes-cadvisor'
      scheme: https
      tls_config:
        ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      kubernetes_sd_configs:
      - role: node
      relabel_configs:
      - action: labelmap
        regex: __meta_kubernetes_node_label_(.+)
      - target_label: __address__
        replacement: kubernetes.default.svc:443
      - source_labels: [__meta_kubernetes_node_name]
        regex: (.+)
        target_label: __metrics_path__
        replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor

    # scrape config for service endpoints.
    - job_name: 'kubernetes-service-endpoints'
      kubernetes_sd_configs:
      - role: endpoints
      relabel_configs:
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
        action: keep
        regex: true
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
        action: replace
        target_label: __scheme__
        regex: (https?)
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
        action: replace
        target_label: __metrics_path__
        regex: (.+)
      - 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

    # Example scrape config for pods
    - job_name: 'kubernetes-pods'
      kubernetes_sd_configs:
      - role: pod

      relabel_configs:
      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
        action: keep
        regex: true
      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
        action: replace
        target_label: __metrics_path__
        regex: (.+)
      - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
        action: replace
        regex: ([^:]+)(?::\d+)?;(\d+)
        replacement: $1:$2
        target_label: __address__
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod_name
