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https://github.com/ironcore864/prometheus-grafana-in-k8s
https://github.com/ironcore864/prometheus-grafana-in-k8s
devops grafana kubernetes monitoring prometheus
Last synced: 13 days ago
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- Host: GitHub
- URL: https://github.com/ironcore864/prometheus-grafana-in-k8s
- Owner: IronCore864
- Created: 2018-08-20T11:01:52.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2018-08-20T11:05:15.000Z (over 6 years ago)
- Last Synced: 2024-12-06T09:42:07.501Z (2 months ago)
- Topics: devops, grafana, kubernetes, monitoring, prometheus
- Size: 1000 Bytes
- Stars: 0
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# 0 Prerequisites
You should have a k8s cluster working already, and we assume you have RBAC enabled.
# 1 Create Service Account and Cluster Role Binding
Create a yaml file and use kubectl to create. Example:
See file `rbac-config.yaml`.
Run:
```
kubectl create -f rbac-config.yaml
```
This will create an service account named "tiller" and bind it with cluster-admin role which is a default in kubernetes.
# 2 Install Helm
Helm is a package manager for Kubernetes.
To install Helm, follow official readme.
To make it short, if you are using mac, run:
```
brew install kubernetes-helm
```
If on Ubuntu, download the binary release here for Linux, unzip, and put it as `/usr/local/bin/helm`.
# 3 Install Tiller
Tiller is the cluster-side service for helm.
Helm will figure out where to install Tiller by reading your Kubernetes configuration file (usually $HOME/.kube/config). This is the same file that kubectl uses.
Once you have Helm ready, you can initialize the local CLI and also install Tiller into your Kubernetes cluster in one step:
```
helm init --service-account
```
Here you want to replace the by the service account name you created in step 1, in our example, it's "tiller".
# 4 Deploy
```
$ helm repo add coreos https://s3-eu-west-1.amazonaws.com/coreos-charts/stable/
$ helm install coreos/prometheus-operator --name prometheus-operator --namespace monitoring
$ helm install coreos/kube-prometheus --name kube-prometheus --set global.rbacEnable=true --namespace monitoring
```
This adds coreos repo, installs prometheus-operator and prometheus with helms.
More details on prometheus-operator see [HERE](https://github.com/coreos/prometheus-operator).
Assuming all is well, you can run the command bellow to list the apps:
```
kubectl get pods -n monitoring
```
In the result, you should be able to see:
- prometheus-kube-prometheus-0
- prometheus-operator
- kube-prometheus-grafana
up and running.
# 5 Test
Forward the Prometheus server to your machine so you can take a better look at the dashboard by opening http://localhost:9090
```
kubectl port-forward -n monitoring prometheus-kube-prometheus-0 9090
```
To have a good-looking dashboard, use Grafana, it has a datasource ready to query on Prometheus.
```
kubectl port-forward $(kubectl get pods --selector=app=kube-prometheus-grafana -n monitoring --output=jsonpath="{.items..metadata.name}") -n monitoring 3000
```
Wait few seconds until grafana load the dashboards, open your browser at http://localhost:3000 to check out your dashboard.
# 6 Todo
- Expose Grafana as a service so that proxy/port-forward is not needed
- Automation for the whole process using ansible/shell
- Persistent storage