Make your own Kubernetes cluster and start monitoring it in some minutes, like a pro :)
Make much more sense if you know
Here we go
- Install Docker community edition
> apt update && apt upgrade -y
> apt install docker-ce
# Installing via direct download
> curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
&& chmod +x minikube
> sudo mkdir -p /usr/local/bin/
> sudo install minikube /usr/local/bin/
#Start the minikube
> minikube start
- Install kubectl ...
> sudo apt-get update && sudo apt-get install -y apt-transport-https
> curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
> echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list
> sudo apt-get update
> sudo apt-get install -y kubectl
- Install Helm ...
> snap install helm
- Create and init Helm
> kubectl create serviceaccount tiller --namespace kube-system
> kubectl create clusterrolebinding tiller-role-binding --clusterrole cluster-admin --serviceaccount=kube-system:tiller
> helm init --service-account tiller
Check if the helm has been initialized correctly
> kubectl get pods --namespace=kube-system
NAME READY STATUS RESTARTS AGE
coredns-5644d7b6d9-2hjl8 1/1 Running 2 30d
coredns-5644d7b6d9-bj5ds 1/1 Running 2 30d
etcd-minikube 1/1 Running 2 30d
kube-addon-manager-minikube 1/1 Running 2 30d
kube-apiserver-minikube 1/1 Running 2 30d
kube-controller-manager-minikube 1/1 Running 2 30d
kube-proxy-tt626 1/1 Running 2 30d
kube-scheduler-minikube 1/1 Running 2 30d
storage-provisioner 1/1 Running 3 30d
tiller-deploy-648c4865d-gpl4d 1/1 Running 0 2h
As it can be seen tiller-deploy-648c4865d-gpl4d has been deployed and is running.
- Update the Helm's repositories
> helm repo update
Hang tight while we grab the latest from your chart repositories...
...Skip local chart repository
...Successfully got an update from the "stable" chart repository
Update Complete.
- Find the latest prometheus operator's version
> helm search stable/prometheus-operator --versions --version=">=8.0" --col-width=20
NAME CHART VERSION APP VERSION DESCRIPTION
stable/prometheus... 8.2.0 0.34.0 Provides easy mon...
stable/prometheus... 8.1.8 0.34.0 Provides easy mon...
stable/prometheus... 8.1.7 0.34.0 Provides easy mon...
stable/prometheus... 8.1.6 0.34.0 Provides easy mon...
stable/prometheus... 8.1.5 0.34.0 Provides easy mon...
stable/prometheus... 8.1.4 0.34.0 Provides easy mon...
stable/prometheus... 8.1.3 0.34.0 Provides easy mon...
stable/prometheus... 8.1.2 0.34.0 Provides easy mon...
stable/prometheus... 8.1.1 0.34.0 Provides easy mon...
stable/prometheus... 8.1.0 0.34.0 Provides easy mon...
stable/prometheus... 8.0.1 0.34.0 Provides easy mon...
stable/prometheus... 8.0.0 0.34.0 Provides easy mon...
- Install the latest prometheus
> helm install stable/prometheus-operator --version=8.2.0 --name=monitoring --namespace=monitoring
- Confirm the deployment
> kubectl get po --namespace=monitoring
NAME READY STATUS RESTARTS AGE
alertmanager-monitoring-prometheus-oper-alertmanager-0 2/2 Running 0 2h
monitoring-grafana-6bc8d55b9d-p2zx2 2/2 Running 0 2h
monitoring-kube-state-metrics-574ccf8cd6-qfv6f 1/1 Running 0 2h
monitoring-prometheus-node-exporter-bpxdv 1/1 Running 0 2h
monitoring-prometheus-oper-operator-56c5f6fb5-x5frc 2/2 Running 0 2h
prometheus-monitoring-prometheus-oper-prometheus-0 3/3 Running 1 2h
- Testing the prometheus
> kubectl port-forward -n monitoring prometheus-monitoring-prometheus-oper-prometheus-0 3141
- Testing the grafana
> kubectl port-forward $(kubectl get pods --selector=app=grafana -n monitoring --output=jsonpath="{.items..metadata.name}") -n monitoring 3142
There you have it
# username: admin
# password: prom-operator
http://localhost:3000/
Happy monitoring :)
