nicolasdonato / episode1---kubernetes-prometheus

Is it Observable?

K8s and Prometheus

Repository containing the files for the Episode 1 of Is it Observable : K8s and Prometheus

This repository showcase the usage of the Prometheus by using GKE with :

• the HipsterShop

Prerequisite

The following tools need to be install on your machine :

• jq
• kubectl
• git
• gcloud ( if you are using GKE)
• Helm

1.Create a Google Cloud Platform Project

PROJECT_ID="<your-project-id>"
gcloud services enable container.googleapis.com --project ${PROJECT_ID}
gcloud services enable monitoring.googleapis.com \
cloudtrace.googleapis.com \
clouddebugger.googleapis.com \
cloudprofiler.googleapis.com \
--project ${PROJECT_ID}

2.Create a GKE cluster

ZONE=us-central1-b
gcloud containr clusters create isitobservable \
--project=${PROJECT_ID} --zone=${ZONE} \
--machine-type=e2-standard-2 --num-nodes=4

3.Clone Github repo

git clone https://github.com/isItObservable/Episode1---Kubernetes-Prometheus
cd Episode1---Kubernetes-Prometheus

4. Deploy Prometheus

HipsterShop

cd hipstershop
./setup.sh

Prometheus

helm install prometheus stable/prometheus-operator

Expose Grafana

kubectl get svc
kubectl edit svc prometheus-grafana

change to type NodePort

apiVersion: v1
kind: Service
metadata:
  annotations:
    meta.helm.sh/release-name: prometheus
    meta.helm.sh/release-namespace: default
  labels:
    app.kubernetes.io/instance: prometheus
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: grafana
    app.kubernetes.io/version: 7.0.3
    helm.sh/chart: grafana-5.3.0
  name: prometheus-grafana
  namespace: default
  resourceVersion: "89873265"
  selfLink: /api/v1/namespaces/default/services/prometheus-grafana
spec:
  clusterIP: IPADRESSS
  externalTrafficPolicy: Cluster
  ports:
  - name: service
    nodePort: 30806
    port: 80
    protocol: TCP
    targetPort: 3000
  selector:
    app.kubernetes.io/instance: prometheus
    app.kubernetes.io/name: grafana
  sessionAffinity: None
  type: NodePort
status:
  loadBalancer: {}

Deploy the ingress by making sure to replace the service name of your grafan

cd ..\grafana
kubectl apply -f ingress.yaml

Get the login user and password of Grafana

• For the password :

kubectl get secret --namespace default prometheus-grafana -o jsonpath="{.data.admin-password}" | base64 --decode

• For the login user:

kubectl get secret --namespace default prometheus-grafana -o jsonpath="{.data.admin-user}" | base64 --decode