Installing Prometheus and Grafana

You can install Prometheus and Grafana by applying template.yaml. The template.yaml file in this example provides a monitoring stack of basic configuration, Deployments and Services to get started with Prometheus and Grafana.

Alternatively, you can use the Prometheus Operator and Grafana Operator.

Prerequisites

kubectl

Procedure

To install Prometheus and Grafana by using template.yaml:

Create a new namespace, monitoring, for Prometheus and Grafana:
```
$ kubectl create namespace monitoring
```

Apply template.yaml in the monitoring namespace:

$ kubectl apply -f template.yaml -n monitoring

Example 1. template.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: grafana
  labels:
    app: grafana
spec:
  ports:
  - name: 3000-tcp
    port: 3000
    protocol: TCP
    targetPort: 3000
  selector:
    app: grafana
---
apiVersion: v1
kind: Service
metadata:
  name: prometheus
  labels:
    app: prometheus
spec:
  ports:
  - name: 9090-tcp
    port: 9090
    protocol: TCP
    targetPort: 9090
  selector:
    app: prometheus
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: grafana
  name: grafana
spec:
  selector:
    matchLabels:
      app: grafana
  template:
    metadata:
      labels:
        app: grafana
    spec:
      containers:
      - image: registry.redhat.io/rhel8/grafana:7
        name: grafana
        ports:
        - containerPort: 3000
          protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: prometheus
  name: prometheus
spec:
  selector:
    matchLabels:
      app: prometheus
  template:
    metadata:
      labels:
        app: prometheus
    spec:
      serviceAccountName: prometheus
      containers:
      - image: quay.io/prometheus/prometheus:v2.36.0
        name: prometheus
        ports:
        - containerPort: 9090
          protocol: TCP
        volumeMounts:
        - mountPath: /prometheus
          name: volume-data
        - mountPath: /etc/prometheus/prometheus.yml
          name: volume-config
          subPath: prometheus.yml
      volumes:
      - emptyDir: {}
        name: volume-data
      - configMap:
          defaultMode: 420
          name: prometheus-config
        name: volume-config
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: prometheus-config
data:
  prometheus.yml: ""
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: prometheus
---

Additional resources