Lab 7.3: Create Prometheus Deployment
Create a Prometheus Deployment
1. Create a file named prometheus-deployment.yaml and copy the following contents onto the file. In this configuration, we are mounting the Prometheus config map as a file inside /etc/prometheus as explained in the previous section.
Note: This deployment uses the latest official Prometheus image from the docker hub. Also, we are not using any persistent storage volumes for Prometheus storage as it is a basic setup. When setting up Prometheus for production uses cases, make sure you add persistent storage to the deployment.
#create the file using vim text ditor
vim prometheus-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: prometheus-deployment
namespace: monitoring
labels:
app: prometheus-server
spec:
replicas: 1
selector:
matchLabels:
app: prometheus-server
template:
metadata:
labels:
app: prometheus-server
spec:
containers:
- name: prometheus
image: prom/prometheus
args:
- "--storage.tsdb.retention.time=12h"
- "--config.file=/etc/prometheus/prometheus.yml"
- "--storage.tsdb.path=/prometheus/"
ports:
- containerPort: 9090
resources:
requests:
cpu: 500m
memory: 500M
limits:
cpu: 1
memory: 1Gi
volumeMounts:
- name: prometheus-config-volume
mountPath: /etc/prometheus/
- name: prometheus-storage-volume
mountPath: /prometheus/
volumes:
- name: prometheus-config-volume
configMap:
defaultMode: 420
name: prometheus-server-conf
- name: prometheus-storage-volume
emptyDir: {}
#save and exit the file
2. Create a deployment on the monitoring namespace using the above file.
kubectl create -f prometheus-deployment.yaml
3. You can check the created deployment using the following command:
kubectl get deployments --namespace=monitoring