Merge pull request #251 from squat/wg-exporter
Add WireGuard monitor and docs
This commit is contained in:
Lucas Servén Marín
GitHub
commit
8a2c82267c
2
Makefile
2
Makefile
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@ -242,7 +242,7 @@ website/docs/README.md: README.md
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cat README.md >> $@
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cp -r docs/graphs website/static/img/
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sed -i 's/\.\/docs\///g' $@
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find $(@D) -type f -name '*.md' | xargs -I{} sed -i 's/\.\/\(.\+\.svg\)/\/img\/\1/g' {}
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find $(@D) -type f -name '*.md' | xargs -I{} sed -i 's/\.\/\(.\+\.\(svg\|png\)\)/\/img\/\1/g' {}
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sed -i 's/graphs\//\/img\/graphs\//g' $@
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# The next line is a workaround until mdx, docusaurus' markdown parser, can parse links with preceding brackets.
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sed -i 's/\[\]\(\[.*\](.*)\)/\[\]\1/g' website/docs/api.md
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"justifyMode": "auto",
|
||||
"orientation": "auto",
|
||||
"reduceOptions": {
|
||||
"calcs": [
|
||||
"lastNotNull"
|
||||
],
|
||||
"fields": "",
|
||||
"values": false
|
||||
},
|
||||
"text": {},
|
||||
"textMode": "auto"
|
||||
},
|
||||
"pluginVersion": "7.5.4",
|
||||
"targets": [
|
||||
{
|
||||
"exemplar": false,
|
||||
"expr": "avg(kilo_nodes)",
|
||||
"interval": "",
|
||||
"legendFormat": "",
|
||||
"queryType": "randomWalk",
|
||||
"refId": "A"
|
||||
}
|
||||
],
|
||||
"timeFrom": null,
|
||||
"timeShift": null,
|
||||
"title": "Kilo Nodes",
|
||||
"type": "stat"
|
||||
},
|
||||
{
|
||||
"datasource": "${DS_PROMETHEUS}",
|
||||
"fieldConfig": {
|
||||
"defaults": {
|
||||
"color": {
|
||||
"mode": "thresholds"
|
||||
},
|
||||
"mappings": [],
|
||||
"thresholds": {
|
||||
"mode": "absolute",
|
||||
"steps": [
|
||||
{
|
||||
"color": "green",
|
||||
"value": null
|
||||
},
|
||||
{
|
||||
"color": "red",
|
||||
"value": 80
|
||||
}
|
||||
]
|
||||
}
|
||||
},
|
||||
"overrides": []
|
||||
},
|
||||
"gridPos": {
|
||||
"h": 8,
|
||||
"w": 4,
|
||||
"x": 8,
|
||||
"y": 16
|
||||
},
|
||||
"id": 8,
|
||||
"options": {
|
||||
"colorMode": "value",
|
||||
"graphMode": "area",
|
||||
"justifyMode": "auto",
|
||||
"orientation": "auto",
|
||||
"reduceOptions": {
|
||||
"calcs": [
|
||||
"lastNotNull"
|
||||
],
|
||||
"fields": "",
|
||||
"values": false
|
||||
},
|
||||
"text": {},
|
||||
"textMode": "auto"
|
||||
},
|
||||
"pluginVersion": "7.5.4",
|
||||
"targets": [
|
||||
{
|
||||
"exemplar": false,
|
||||
"expr": "sum(kilo_leader)",
|
||||
"interval": "",
|
||||
"legendFormat": "",
|
||||
"queryType": "randomWalk",
|
||||
"refId": "A"
|
||||
}
|
||||
],
|
||||
"title": "segments",
|
||||
"type": "stat"
|
||||
},
|
||||
{
|
||||
"aliasColors": {},
|
||||
"bars": false,
|
||||
"dashLength": 10,
|
||||
"dashes": false,
|
||||
"datasource": "${DS_PROMETHEUS}",
|
||||
"fieldConfig": {
|
||||
"defaults": {},
|
||||
"overrides": []
|
||||
},
|
||||
"fill": 1,
|
||||
"fillGradient": 0,
|
||||
"gridPos": {
|
||||
"h": 8,
|
||||
"w": 12,
|
||||
"x": 12,
|
||||
"y": 16
|
||||
},
|
||||
"hiddenSeries": false,
|
||||
"id": 6,
|
||||
"legend": {
|
||||
"avg": false,
|
||||
"current": false,
|
||||
"max": false,
|
||||
"min": false,
|
||||
"show": true,
|
||||
"total": false,
|
||||
"values": false
|
||||
},
|
||||
"lines": true,
|
||||
"linewidth": 1,
|
||||
"nullPointMode": "null",
|
||||
"options": {
|
||||
"alertThreshold": true
|
||||
},
|
||||
"percentage": false,
|
||||
"pluginVersion": "7.5.4",
|
||||
"pointradius": 2,
|
||||
"points": false,
|
||||
"renderer": "flot",
|
||||
"seriesOverrides": [],
|
||||
"spaceLength": 10,
|
||||
"stack": false,
|
||||
"steppedLine": false,
|
||||
"targets": [
|
||||
{
|
||||
"exemplar": false,
|
||||
"expr": "sum by (instance) (rate(kilo_errors_total[10m]))",
|
||||
"interval": "",
|
||||
"legendFormat": "",
|
||||
"queryType": "randomWalk",
|
||||
"refId": "A"
|
||||
}
|
||||
],
|
||||
"thresholds": [],
|
||||
"timeFrom": null,
|
||||
"timeRegions": [],
|
||||
"timeShift": null,
|
||||
"title": "Kilo Errors",
|
||||
"tooltip": {
|
||||
"shared": true,
|
||||
"sort": 0,
|
||||
"value_type": "individual"
|
||||
},
|
||||
"type": "graph",
|
||||
"xaxis": {
|
||||
"buckets": null,
|
||||
"mode": "time",
|
||||
"name": null,
|
||||
"show": true,
|
||||
"values": []
|
||||
},
|
||||
"yaxes": [
|
||||
{
|
||||
"$$hashKey": "object:446",
|
||||
"format": "hertz",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
},
|
||||
{
|
||||
"$$hashKey": "object:447",
|
||||
"format": "short",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
}
|
||||
],
|
||||
"yaxis": {
|
||||
"align": false,
|
||||
"alignLevel": null
|
||||
}
|
||||
},
|
||||
{
|
||||
"aliasColors": {},
|
||||
"bars": false,
|
||||
"dashLength": 10,
|
||||
"dashes": false,
|
||||
"datasource": "${DS_PROMETHEUS}",
|
||||
"fieldConfig": {
|
||||
"defaults": {},
|
||||
"overrides": []
|
||||
},
|
||||
"fill": 1,
|
||||
"fillGradient": 0,
|
||||
"gridPos": {
|
||||
"h": 8,
|
||||
"w": 12,
|
||||
"x": 0,
|
||||
"y": 24
|
||||
},
|
||||
"hiddenSeries": false,
|
||||
"id": 20,
|
||||
"legend": {
|
||||
"avg": false,
|
||||
"current": false,
|
||||
"max": false,
|
||||
"min": false,
|
||||
"show": true,
|
||||
"total": false,
|
||||
"values": false
|
||||
},
|
||||
"lines": true,
|
||||
"linewidth": 1,
|
||||
"nullPointMode": "null",
|
||||
"options": {
|
||||
"alertThreshold": true
|
||||
},
|
||||
"percentage": false,
|
||||
"pluginVersion": "7.5.4",
|
||||
"pointradius": 2,
|
||||
"points": false,
|
||||
"renderer": "flot",
|
||||
"seriesOverrides": [],
|
||||
"spaceLength": 10,
|
||||
"stack": false,
|
||||
"steppedLine": false,
|
||||
"targets": [
|
||||
{
|
||||
"exemplar": true,
|
||||
"expr": "sum by (instance) (rate(process_cpu_seconds_total{pod=~\"kilo-.*\"}[1m]))",
|
||||
"interval": "",
|
||||
"legendFormat": "",
|
||||
"queryType": "randomWalk",
|
||||
"refId": "A"
|
||||
}
|
||||
],
|
||||
"thresholds": [],
|
||||
"timeFrom": null,
|
||||
"timeRegions": [],
|
||||
"timeShift": null,
|
||||
"title": "CPU usage",
|
||||
"tooltip": {
|
||||
"shared": true,
|
||||
"sort": 0,
|
||||
"value_type": "individual"
|
||||
},
|
||||
"type": "graph",
|
||||
"xaxis": {
|
||||
"buckets": null,
|
||||
"mode": "time",
|
||||
"name": null,
|
||||
"show": true,
|
||||
"values": []
|
||||
},
|
||||
"yaxes": [
|
||||
{
|
||||
"$$hashKey": "object:162",
|
||||
"format": "percentunit",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
},
|
||||
{
|
||||
"$$hashKey": "object:163",
|
||||
"format": "short",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
}
|
||||
],
|
||||
"yaxis": {
|
||||
"align": false,
|
||||
"alignLevel": null
|
||||
}
|
||||
},
|
||||
{
|
||||
"aliasColors": {},
|
||||
"bars": false,
|
||||
"dashLength": 10,
|
||||
"dashes": false,
|
||||
"datasource": "${DS_PROMETHEUS}",
|
||||
"fieldConfig": {
|
||||
"defaults": {},
|
||||
"overrides": []
|
||||
},
|
||||
"fill": 1,
|
||||
"fillGradient": 0,
|
||||
"gridPos": {
|
||||
"h": 8,
|
||||
"w": 12,
|
||||
"x": 12,
|
||||
"y": 24
|
||||
},
|
||||
"hiddenSeries": false,
|
||||
"id": 22,
|
||||
"legend": {
|
||||
"avg": false,
|
||||
"current": false,
|
||||
"max": false,
|
||||
"min": false,
|
||||
"show": true,
|
||||
"total": false,
|
||||
"values": false
|
||||
},
|
||||
"lines": true,
|
||||
"linewidth": 1,
|
||||
"nullPointMode": "null",
|
||||
"options": {
|
||||
"alertThreshold": true
|
||||
},
|
||||
"percentage": false,
|
||||
"pluginVersion": "7.5.4",
|
||||
"pointradius": 2,
|
||||
"points": false,
|
||||
"renderer": "flot",
|
||||
"seriesOverrides": [],
|
||||
"spaceLength": 10,
|
||||
"stack": false,
|
||||
"steppedLine": false,
|
||||
"targets": [
|
||||
{
|
||||
"exemplar": false,
|
||||
"expr": "sum by (instance) (process_resident_memory_bytes{pod=~\"kilo-.*\"})",
|
||||
"interval": "",
|
||||
"legendFormat": "",
|
||||
"queryType": "randomWalk",
|
||||
"refId": "A"
|
||||
}
|
||||
],
|
||||
"thresholds": [],
|
||||
"timeFrom": null,
|
||||
"timeRegions": [],
|
||||
"timeShift": null,
|
||||
"title": "Memory Allocation",
|
||||
"tooltip": {
|
||||
"shared": true,
|
||||
"sort": 0,
|
||||
"value_type": "individual"
|
||||
},
|
||||
"type": "graph",
|
||||
"xaxis": {
|
||||
"buckets": null,
|
||||
"mode": "time",
|
||||
"name": null,
|
||||
"show": true,
|
||||
"values": []
|
||||
},
|
||||
"yaxes": [
|
||||
{
|
||||
"$$hashKey": "object:231",
|
||||
"format": "decbytes",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
},
|
||||
{
|
||||
"$$hashKey": "object:232",
|
||||
"format": "decmbytes",
|
||||
"label": null,
|
||||
"logBase": 1,
|
||||
"max": null,
|
||||
"min": null,
|
||||
"show": true
|
||||
}
|
||||
],
|
||||
"yaxis": {
|
||||
"align": false,
|
||||
"alignLevel": null
|
||||
}
|
||||
},
|
||||
{
|
||||
"collapsed": false,
|
||||
"datasource": null,
|
||||
"gridPos": {
|
||||
"h": 1,
|
||||
"w": 24,
|
||||
"x": 0,
|
||||
"y": 32
|
||||
},
|
||||
"id": 14,
|
||||
"panels": [],
|
||||
"title": "Row title",
|
||||
"type": "row"
|
||||
}
|
||||
],
|
||||
"refresh": false,
|
||||
"schemaVersion": 27,
|
||||
"style": "dark",
|
||||
"tags": [],
|
||||
"templating": {
|
||||
"list": []
|
||||
},
|
||||
"time": {
|
||||
"from": "now-24h",
|
||||
"to": "now"
|
||||
},
|
||||
"timepicker": {},
|
||||
"timezone": "",
|
||||
"title": "Kilo",
|
||||
"uid": "R8Lja3H7z",
|
||||
"version": 11
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 543 KiB |
|
|
@ -0,0 +1,100 @@
|
|||
# Monitoring
|
||||
|
||||
The following assumes that you have applied the [kube-prometheus](https://github.com/prometheus-operator/kube-prometheus) monitoring stack onto your cluster.
|
||||
|
||||
## Kilo
|
||||
|
||||
Monitor the Kilo DaemonSet with:
|
||||
```shell
|
||||
kubectl apply -f https://raw.githubusercontent.com/squat/kilo/main/manifests/podmonitor.yaml
|
||||
```
|
||||
|
||||
## WireGuard
|
||||
|
||||
Monitor the WireGuard interfaces with:
|
||||
```shell
|
||||
kubectl create ns kilo
|
||||
kubectl apply -f https://raw.githubusercontent.com/squat/kilo/main/manifests/wg-exporter.yaml
|
||||
```
|
||||
|
||||
The manifest will deploy the [Prometheus WireGuard Exporter](https://github.com/MindFlavor/prometheus_wireguard_exporter) as a DaemonSet and a [PodMonitor](https://docs.openshift.com/container-platform/4.8/rest_api/monitoring_apis/podmonitor-monitoring-coreos-com-v1.html).
|
||||
|
||||
By default the kube-prometheus stack only monitors the `default`, `kube-system` and `monitoring` namespaces.
|
||||
In order to allow Prometheus to monitor the `kilo` namespace, apply the Role and RoleBinding with:
|
||||
```shell
|
||||
kubectl apply -f https://raw.githubusercontent.com/squat/kilo/main/manifests/wg-exporter-role-kube-prometheus.yaml
|
||||
```
|
||||
|
||||
## Metrics
|
||||
|
||||
### Kilo
|
||||
|
||||
Kilo exports some standard metrics with the Prometheus GoCollector and ProcessCollector.
|
||||
It also exposes some Kilo-specific metrics.
|
||||
|
||||
```
|
||||
# HELP kilo_errors_total Number of errors that occurred while administering the mesh.
|
||||
# TYPE kilo_errors_total counter
|
||||
|
||||
# HELP kilo_leader Leadership status of the node.
|
||||
# TYPE kilo_leader gauge
|
||||
|
||||
# HELP kilo_nodes Number of nodes in the mesh.
|
||||
# TYPE kilo_nodes gauge
|
||||
|
||||
# HELP kilo_peers Number of peers in the mesh.
|
||||
# TYPE kilo_peers gauge
|
||||
|
||||
# HELP kilo_reconciles_total Number of reconciliation attempts.
|
||||
# TYPE kilo_reconciles_total counter
|
||||
```
|
||||
|
||||
### WireGuard
|
||||
|
||||
The [Prometheus WireGuard Exporter](https://github.com/MindFlavor/prometheus_wireguard_exporter) exports the following metrics:
|
||||
|
||||
```
|
||||
# HELP wireguard_sent_bytes_total Bytes sent to the peer
|
||||
# TYPE wireguard_sent_bytes_total counter
|
||||
|
||||
# HELP wireguard_received_bytes_total Bytes received from the peer
|
||||
# TYPE wireguard_received_bytes_total counter
|
||||
|
||||
# HELP wireguard_latest_handshake_seconds Seconds from the last handshake
|
||||
# TYPE wireguard_latest_handshake_seconds gauge
|
||||
```
|
||||
|
||||
## Display some Metrics
|
||||
|
||||
If your laptop is a Kilo peer of the cluster you can access the Prometheus UI by navigating your browser directly to the cluster IP of the `prometheus-k8s` service.
|
||||
Otherwise use `port-forward`:
|
||||
```shell
|
||||
kubectl -n monitoring port-forward svc/prometheus-k8s 9090
|
||||
```
|
||||
and navigate your browser to `localhost:9090`.
|
||||
Check if you can see the PodMonitors for Kilo and the WireGuard Exporter under **Status** -> **Targets** in the Prometheus web UI.
|
||||
|
||||
If you don't see them, check the logs of the `prometheus-k8s` Pods; it may be that Prometheus doesn't have the permission to get Pods in the `kilo` namespace.
|
||||
In this case, you need to apply the Role and RoleBinding from above.
|
||||
|
||||
Navigate to **Graph** and try to execute a simple query, e.g. type `kilo_nodes` and click on `execute`.
|
||||
You should see some data.
|
||||
|
||||
## Using Grafana
|
||||
|
||||
Let's navigate to the Grafana dashboard.
|
||||
Again, if your laptop is not a Kilo peer, use `port-forward`:
|
||||
```shell
|
||||
kubectl -n monitoring port-forward svc/grafana 3000
|
||||
```
|
||||
|
||||
Now navigate your browser to `localhost:3000`.
|
||||
The default user and password is `admin` `admin`.
|
||||
|
||||
An example configuration for a dashboard displaying Kilo metrics can be found [here](https://raw.githubusercontent.com/squat/kilo/main/docs/grafana/kilo.json).
|
||||
You can import this dashboard by hitting **+** -> **Import** on the Grafana dashboard.
|
||||
|
||||
The dashboard looks like this:
|
||||
|
||||
<img src="./graphs/kilo.png" />
|
||||
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: Role
|
||||
metadata:
|
||||
labels:
|
||||
app.kubernetes.io/component: prometheus
|
||||
app.kubernetes.io/name: prometheus
|
||||
app.kubernetes.io/part-of: kube-prometheus
|
||||
app.kubernetes.io/version: 2.26.0
|
||||
name: prometheus-k8s
|
||||
namespace: kilo
|
||||
rules:
|
||||
- apiGroups:
|
||||
- ""
|
||||
resources:
|
||||
- services
|
||||
- endpoints
|
||||
- pods
|
||||
verbs:
|
||||
- get
|
||||
- list
|
||||
- watch
|
||||
- apiGroups:
|
||||
- extensions
|
||||
resources:
|
||||
- ingresses
|
||||
verbs:
|
||||
- get
|
||||
- list
|
||||
- watch
|
||||
- apiGroups:
|
||||
- networking.k8s.io
|
||||
resources:
|
||||
- ingresses
|
||||
verbs:
|
||||
- get
|
||||
- list
|
||||
- watch
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: RoleBinding
|
||||
metadata:
|
||||
labels:
|
||||
app.kubernetes.io/component: prometheus
|
||||
app.kubernetes.io/name: prometheus
|
||||
app.kubernetes.io/part-of: kube-prometheus
|
||||
app.kubernetes.io/version: 2.26.0
|
||||
name: prometheus-k8s
|
||||
namespace: kilo
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: Role
|
||||
name: prometheus-k8s
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: prometheus-k8s
|
||||
namespace: monitoring
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
apiVersion: monitoring.coreos.com/v1
|
||||
kind: PodMonitor
|
||||
metadata:
|
||||
labels:
|
||||
app.kubernetes.io/name: wg-exporter
|
||||
app.kubernetes.io/part-of: kilo
|
||||
name: wg-exporter
|
||||
namespace: kilo
|
||||
spec:
|
||||
namespaceSelector:
|
||||
matchNames:
|
||||
- kilo
|
||||
podMetricsEndpoints:
|
||||
- interval: 15s
|
||||
port: metrics
|
||||
path: /metrics
|
||||
selector:
|
||||
matchLabels:
|
||||
app.kubernetes.io/part-of: kilo
|
||||
app.kubernetes.io/name: wg-exporter
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: DaemonSet
|
||||
metadata:
|
||||
labels:
|
||||
app.kubernetes.io/name: wg-exporter
|
||||
app.kubernetes.io/part-of: kilo
|
||||
name: wg-exporter
|
||||
namespace: kilo
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
app.kubernetes.io/name: wg-exporter
|
||||
app.kubernetes.io/part-of: kilo
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app.kubernetes.io/name: wg-exporter
|
||||
app.kubernetes.io/part-of: kilo
|
||||
spec:
|
||||
containers:
|
||||
- args:
|
||||
- -a
|
||||
- -i=kilo0
|
||||
- -p=9586
|
||||
image: mindflavor/prometheus-wireguard-exporter
|
||||
name: wg-exporter
|
||||
ports:
|
||||
- containerPort: 9586
|
||||
name: metrics
|
||||
protocol: TCP
|
||||
securityContext:
|
||||
privileged: true
|
||||
terminationMessagePath: /dev/termination-log
|
||||
terminationMessagePolicy: File
|
||||
volumeMounts:
|
||||
- name: wireguard
|
||||
mountPath: /var/run/wireguard
|
||||
volumes:
|
||||
- name: wireguard
|
||||
hostPath:
|
||||
path: /var/run/wireguard
|
||||
tolerations:
|
||||
- effect: NoSchedule
|
||||
operator: Exists
|
||||
- effect: NoExecute
|
||||
operator: Exists
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
---
|
||||
id: monitoring
|
||||
title: Monitoring
|
||||
hide_title: true
|
||||
---
|
||||
|
|
@ -7,7 +7,7 @@ module.exports = {
|
|||
{
|
||||
type: 'category',
|
||||
label: 'Guides',
|
||||
items: ['topology', 'vpn', 'vpn-server', 'multi-cluster-services', 'network-policies', 'userspace-wireguard', 'peer-validation'],
|
||||
items: ['topology', 'vpn', 'vpn-server', 'multi-cluster-services', 'network-policies', 'userspace-wireguard', 'peer-validation', 'monitoring'],
|
||||
},
|
||||
{
|
||||
type: 'category',
|
||||
|
|
|
|||
Loading…
Reference in New Issue