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148 lines
3.4 KiB
148 lines
3.4 KiB
# Kubernetes Support
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## Requirements
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- Kubernetes 1.19+
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- Metrics service
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- An Ingress controller
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## Deployment
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Use the unofficial helm chart: https://github.com/jameswynn/helm-charts/tree/main/charts/homepage
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```sh
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helm repo add jameswynn https://jameswynn.github.io/helm-charts
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helm install my-release jameswynn/homepage
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```
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### Configuration
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Set the `mode` in the `kubernetes.yaml` to `cluster`.
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```yaml
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mode: default
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```
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## Widgets
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The Kubernetes widget can show a high-level overview of the cluster,
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individual nodes, or both.
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```yaml
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- kubernetes:
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cluster:
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# Shows the cluster node
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show: true
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# Shows the aggregate CPU stats
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cpu: true
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# Shows the aggregate memory stats
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memory: true
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# Shows a custom label
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showLabel: true
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label: "cluster"
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nodes:
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# Shows the clusters
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show: true
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# Shows the CPU for each node
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cpu: true
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# Shows the memory for each node
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memory: true
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# Shows the label, which is always the node name
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showLabel: true
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```
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## Service Discovery
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Sample yaml:
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```yaml
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apiVersion: networking.k8s.io/v1
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kind: Ingress
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metadata:
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name: homepage
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annotations:
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gethomepage.dev/enabled: "true"
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gethomepage.dev/description: Dynamically Detected Homepage
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gethomepage.dev/group: Operations
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gethomepage.dev/icon: homepage.png
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gethomepage.dev/name: Homepage
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spec:
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rules:
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- host: homepage.example.com
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http:
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paths:
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- backend:
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service:
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name: homepage
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port:
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number: 3000
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path: /
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pathType: Prefix
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```
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## Service Widgets
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To manually configure a Service Widget the `namespace` and `app` fields must
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be configured on the service entry.
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```yaml
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- Home Automation
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- Home-Assistant:
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icon: home-assistant.png
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href: https://home.example.com
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description: Home Automation
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app: home-assistant
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namespace: home
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```
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This works by creating a label selector `app.kubernetes.io/name=home-assistant`,
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which typically will be the same both for the ingress and the deployment. However,
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some deployments can be complex and will not conform to this rule. In such
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cases the `pod-selector` variable can bridge the gap. Any field selector can
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be used in it which allows for some powerful selection capabilities.
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For instance, it can be utilized to roll multiple underlying deployments under
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one application to see a high-level aggregate:
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```yaml
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- Comms
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- Element Chat:
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icon: matrix-light.png
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href: https://chat.example.com
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description: Matrix Synapse Powered Chat
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app: matrix-element
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namespace: comms
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pod-selector: >-
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app.kubernetes.io/instance in (
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matrix-element,
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matrix-media-repo,
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matrix-media-repo-postgresql,
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matrix-synapse
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)
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```
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## Longhorn Widget
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There is a widget for showing storage stats from [Longhorn](https://longhorn.io).
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Configure it from the `widgets.yaml`.
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```yaml
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- longhorn:
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# Show the expanded
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expanded: true
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# Shows a node representing the aggregate values
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total: true
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# Shows the node names as labels
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labels: true
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# Show the nodes
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nodes: true
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# An explicit list of nodes to show. All are shown by default if "nodes" is true
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include:
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- node1
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- node2
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```
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## Testing
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Refer to the [k3d readme](k3d/README.md).
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