apiVersion: v1
kind: ConfigMap
metadata:
  name: prometheus
  namespace: {{ .Release.Namespace }}
  labels:
    app: prometheus
    release: {{ .Release.Name }}
data:
  prometheus.yml: |-
    global:
      scrape_interval: {{ .Values.prometheus.scrapeInterval }}
    scrape_configs:


{{- if not .Values.meshConfig.enablePrometheusMerge }}
    # Mixer scrapping. Defaults to Prometheus and mixer on same namespace.
    - job_name: 'istio-mesh'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Release.Namespace }}
      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-telemetry;prometheus

    # Scrape config for envoy stats
    - job_name: 'envoy-stats'
      metrics_path: /stats/prometheus
      kubernetes_sd_configs:
      - role: pod

      relabel_configs:
      - source_labels: [__meta_kubernetes_pod_container_port_name]
        action: keep
        regex: '.*-envoy-prom'
      - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
        action: replace
        regex: ([^:]+)(?::\d+)?;(\d+)
        replacement: $1:15090
        target_label: __address__
      - action: labeldrop
        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

    - job_name: 'istio-policy'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Values.global.policyNamespace }}


      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-policy;http-policy-monitoring

    - job_name: 'istio-telemetry'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Values.global.telemetryNamespace }}

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-telemetry;http-monitoring

    - job_name: 'pilot'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Values.global.istioNamespace }}

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istiod;http-monitoring
      - source_labels: [__meta_kubernetes_service_label_app]
        target_label: app
    - job_name: 'galley'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Values.global.istioNamespace }}

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-galley;http-monitoring

    - job_name: 'citadel'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Values.global.istioNamespace }}

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-citadel;http-monitoring

    - job_name: 'sidecar-injector'

      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - {{ .Release.Namespace }}

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: istio-sidecar-injector;http-monitoring
{{- end }}

    # scrape config for API servers
    - job_name: 'kubernetes-apiservers'
      kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
          - default
      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_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: 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

    - job_name: 'kubernetes-pods'
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:  # If first two labels are present, pod should be scraped  by the istio-secure job.
      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
        action: keep
        regex: true
{{- if and .Values.prometheus.provisionPrometheusCert (not .Values.meshConfig.enablePrometheusMerge) }}
      - source_labels: [__meta_kubernetes_pod_annotation_sidecar_istio_io_status]
        action: drop
        regex: (.+)
      - source_labels: [__meta_kubernetes_pod_annotation_istio_mtls]
        action: drop
        regex: (true)
{{- end }}
      - 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

{{- if and .Values.prometheus.provisionPrometheusCert (not .Values.meshConfig.enablePrometheusMerge) }}
    - job_name: 'kubernetes-pods-istio-secure'
      scheme: https
      tls_config:
        ca_file: /etc/istio-certs/root-cert.pem
        cert_file: /etc/istio-certs/cert-chain.pem
        key_file: /etc/istio-certs/key.pem
        insecure_skip_verify: true  # prometheus does not support secure naming.
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
        action: keep
        regex: true
      # sidecar status annotation is added by sidecar injector and
      # istio_workload_mtls_ability can be specifically placed on a pod to indicate its ability to receive mtls traffic.
      - source_labels: [__meta_kubernetes_pod_annotation_sidecar_istio_io_status, __meta_kubernetes_pod_annotation_istio_mtls]
        action: keep
        regex: (([^;]+);([^;]*))|(([^;]*);(true))
      - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
        action: replace
        target_label: __metrics_path__
        regex: (.+)
      - source_labels: [__address__]  # Only keep address that is host:port
        action: keep    # otherwise an extra target with ':443' is added for https scheme
        regex: ([^:]+):(\d+)
      - 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
{{- end }}