Garfana:
It is a visualization tool to provide graphical representation for monitoring services like Prometheus.
Steps to install Garfana on the Kubernetes environment.
Step 1:
Create a file named grafana-datasource-config.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: grafana-datasources
namespace: monitoring
data:
prometheus.yaml: |-
{
"apiVersion": 1,
"datasources": [
{
"access":"proxy",
"editable": true,
"name": "prometheus",
"orgId": 1,
"type": "prometheus",
"url": "http://prometheus-service.monitoring.svc:8080",
"version": 1
}
]
}
Execute the script
kubectl create -f grafana-datasource-config.yaml
Step 2: Create a file named deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: grafana
namespace: monitoring
spec:
replicas: 1
selector:
matchLabels:
app: grafana
template:
metadata:
name: grafana
labels:
app: grafana
spec:
containers:
- name: grafana
image: grafana/grafana:latest
ports:
- name: grafana
containerPort: 3000
resources:
limits:
memory: "1Gi"
cpu: "1000m"
requests:
memory: 500M
cpu: "500m"
volumeMounts:
- mountPath: /var/lib/grafana
name: grafana-storage
- mountPath: /etc/grafana/provisioning/datasources
name: grafana-datasources
readOnly: false
volumes:
- name: grafana-storage
emptyDir: {}
- name: grafana-datasources
configMap:
defaultMode: 420
name: grafana-datasources
Execute the script
kubectl create -f deployment.yaml
Step 3:
Create a service file named service.yaml
apiVersion: v1
kind: Service
metadata:
name: grafana
namespace: monitoring
annotations:
prometheus.io/scrape: 'true'
prometheus.io/port: '3000'
spec:
selector:
app: grafana
type: NodePort
ports:
- port: 3000
targetPort: 3000
nodePort: 32000
Execute the script
kubectl create -f service.yaml
Now you should be able to access the Grafana dashboard using any node IP on port 32000. Make sure the port is allowed in the firewall to be accessed from your workstation.
http://<your-node-ip>:32000
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