Instruction on how to install prometheus grafana loki

Start your local kubernetes cluster

minikube start --driver=virtualbox

Create 2 namespaces for prometheus & loki

kubectl create ns <name-of-namespace>

check your helm repo

helm repo list

or you can also add

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo add grafana-loki https://grafana.github.io/helm-charts

update your helm repo

helm repo update

Search your helm repo

helm search repo prometheus-community

Install the kube-prometheus-stack and loki

helm install prometheus prometheus-community/kube-prometheus-stack -n prometheus
helm install loki grafana/loki-stack -n loki

As a part of you stack you get grafana as well as Alertmanager, wait till all the pods are in running state

kubectl get po -n prometheus
kubectl get po -n loki

now expose your services to view the gui

kubectl -n prometheus expose service prometheus-kube-prometheus-prometheus --type=NodePort --target-port=9090 --name prometheus-svc-ext

kubectl -n prometheus expose service prometheus-kube-prometheus-alertmanager --type=NodePort --target-port=9093 --name=alertmanager-svc-ext

kubectl -n prometheus expose service prometheus-grafana --type=NodePort --target-port=3000 --name=grafana-svc-ext

kubectl -n loki expose service loki --type=NodePort --target-port=3100 --name=loki-svc-ext

Grafana Dashboard after adding data sources

create a deployment to check if we are getting logs for the containers

kubectl create deployment nginx-deployment --image=nginx --replicas=4

After nginx deployment we can see loki logs

Configure slack to receive notification

https://api.slack.com/ --> yor apps --> create new app --> From Scratch --> after creating --> incoming weebhooks--> Add new webhook to workspace

Upgrade the helm chart to receieve alerts

helm upgrade --reuse-values -f /home/supriyo/alertmanager-config.yaml prometheus prometheus-community/kube-prometheus-stack -n prometheus

Go to Komodor UI and install the helm mentioned or generated when adding cluster