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https://github.com/fluxcd/flux2-monitoring-example
Prometheus monitoring for the Flux control plane
https://github.com/fluxcd/flux2-monitoring-example
gitops monitoring
Last synced: 4 days ago
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Prometheus monitoring for the Flux control plane
- Host: GitHub
- URL: https://github.com/fluxcd/flux2-monitoring-example
- Owner: fluxcd
- License: apache-2.0
- Created: 2023-08-02T13:28:01.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-11-05T12:42:11.000Z (about 2 months ago)
- Last Synced: 2024-12-20T15:13:37.803Z (11 days ago)
- Topics: gitops, monitoring
- Language: Shell
- Homepage: https://fluxcd.io/flux/monitoring/
- Size: 47.9 KB
- Stars: 58
- Watchers: 13
- Forks: 149
- Open Issues: 9
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# flux2-monitoring-example
This repository is an example of how to make use of
[kube-prometheus-stack](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack)
and
[loki-stack](https://github.com/grafana/helm-charts/tree/main/charts/loki-stack)
to monitor Flux.
Components:
* **kube-state-metrics** - generates metrics about the state of the Flux objects
* **Prometheus Operator** - manages Prometheus clusters atop Kubernetes
* **Prometheus** - collects and stores metrics from the Flux controllers and kube-state-metrics
* **Promtail** - collects the logs from the Flux controllers
* **Loki** - stores the logs collected by Promtail
* **Grafana** dashboards - displays the Flux control plane resource usage, reconciliation stats and logs
## Quickstart
### Create a Kubernetes cluster
For a quick local test, you can use [Kubernetes kind](https://kind.sigs.k8s.io/docs/user/quick-start/).
Any other Kubernetes setup will work as well though.
Create a cluster called `test` with the kind CLI:
```shell
kind create cluster --name test
```
### Fork the GitHub repository
In order to follow this guide you'll need a GitHub account and a
[personal access token](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line)
that can create repositories (check all permissions under `repo`).
Add the GitHub PAT and username to your shell environment:
```sh
export GITHUB_TOKEN=
export GITHUB_USER=
```
Fork this repository on your personal account and clone it locally:
```shell
git clone https://github.com/${GITHUB_USER}/flux2-monitoring-example.git
cd flux2-monitoring-example
```
### Bootstrap Flux
Install the Flux controllers on the test cluster:
```shell
flux bootstrap github \
--owner=${GITHUB_USER} \
--repository=flux2-monitoring-example \
--branch=main \
--personal \
--path=clusters/test
```
Wait for Flux to deploy the monitoring stack with:
```shell
flux get kustomizations --watch
```
After Flux has finished reconciling, you can list the pods in the monitoring namespace with:
```console
$ kubectl -n monitoring get po
NAME READY
kube-prometheus-stack-grafana-5c976ff4cf-xgmwm 3/3
kube-prometheus-stack-kube-state-metrics-5dcf4c4697-jvlvh 1/1
kube-prometheus-stack-operator-75f9fdcbf6-98zmh 1/1
kube-prometheus-stack-prometheus-node-exporter-j4vhb 1/1
loki-stack-0 1/1
loki-stack-promtail-dcg64 1/1
prometheus-kube-prometheus-stack-prometheus-0 2/2
```
### Accessing Grafana
To access Grafana, start port forward in a separate shell:
```shell
kubectl -n monitoring port-forward svc/kube-prometheus-stack-grafana 3000:80
```
Navigate to `http://localhost:3000` in your browser and login with user `admin` and password `flux`.
Flux dashboards:
- [Reconciliation stats](http://localhost:3000/d/flux-cluster/flux-cluster-stats)
- [Control plane stats](http://localhost:3000/d/flux-control-plane/flux-control-plane)
- [Control plane logs](http://localhost:3000/d/flux-logs/flux-logs)