prometheus-adapter.yaml

---
apiVersion: v1
kind: Namespace
metadata:
  name: "prometheus"
  labels:
    name: "prometheus"

---
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: prometheus
  namespace: argocd
  labels:
    name: prometheus
spec:
  project: default
  source:
    # chart: prometheus-community/prometheus
    chart: prometheus
    repoURL: https://prometheus-community.github.io/helm-charts
    targetRevision: 15.18.0
    helm:
      values: |
        server:
          # extraArgs:
          #   storage.tsdb.max-block-duration: 4h
          #   storage.tsdb.min-block-duration: 2h
          #   storage.tsdb.retention.time: 8h
          resources:
            limits:
              cpu: 1000m
              memory: 16000Mi
            requests:
              cpu: 500m
              memory: 10240Mi

  # Destination cluster and namespace to deploy the application
  destination:
    namespace: prometheus
    server: https://kubernetes.default.svc

  # keep in sync
  syncPolicy:
    automated:
      prune: true # Specifies if resources should be pruned during auto-syncing ( false by default ).
      selfHeal: true # Specifies if partial app sync should be executed when resources are changed only in target Kubernetes cluster and no git change detected ( false by default ).

---
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: prometheus-adapter
  namespace: argocd
  labels:
    name: prometheus-adapter
spec:
  project: default
  source:
    # chart: prometheus-community/prometheus-adapter
    chart: prometheus-adapter
    repoURL: https://prometheus-community.github.io/helm-charts
    targetRevision: 3.4.2
    helm:
      values: |
        prometheus:
          url: http://prometheus-server.prometheus
          port: 80
        rules:
          custom:
          - seriesQuery: 'http_connections{pod!="",namespace!=""}'
            resources:
              overrides:
                namespace:
                  resource: "namespace"
                pod:
                  resource: "pod"
            name:
              matches: ""
              as: "http_connections"
            metricsQuery: avg(<<.Series>>{<<.LabelMatchers>>}) by (<<.GroupBy>>)

  # Destination cluster and namespace to deploy the application
  destination:
    namespace: prometheus
    server: https://kubernetes.default.svc

  # keep in sync
  syncPolicy:
    automated:
      prune: true # Specifies if resources should be pruned during auto-syncing ( false by default ).
      selfHeal: true # Specifies if partial app sync should be executed when resources are changed only in target Kubernetes cluster and no git change detected ( false by default ).