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homepage/docs/installation/k8s.md

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Kubernetes Installation Install on Kubernetes

Install with Helm

There is an unofficial helm chart that creates all the necessary manifests, including the service account and RBAC entities necessary for service discovery.

helm repo add jameswynn https://jameswynn.github.io/helm-charts
helm install homepage jameswynn/homepage -f values.yaml

The helm chart allows for all the configurations to be inlined directly in your values.yaml:

config:
  bookmarks:
    - Developer:
        - Github:
            - abbr: GH
              href: https://github.com/
  services:
    - My First Group:
        - My First Service:
            href: http://localhost/
            description: Homepage is awesome

    - My Second Group:
        - My Second Service:
            href: http://localhost/
            description: Homepage is the best

    - My Third Group:
        - My Third Service:
            href: http://localhost/
            description: Homepage is 😎
  widgets:
    # show the kubernetes widget, with the cluster summary and individual nodes
    - kubernetes:
        cluster:
          show: true
          cpu: true
          memory: true
          showLabel: true
          label: "cluster"
        nodes:
          show: true
          cpu: true
          memory: true
          showLabel: true
    - search:
        provider: duckduckgo
        target: _blank
  kubernetes:
    mode: cluster
  settings:

# The service account is necessary to allow discovery of other services
serviceAccount:
  create: true
  name: homepage

# This enables the service account to access the necessary resources
enableRbac: true

ingress:
  main:
    enabled: true
    annotations:
      # Example annotations to add Homepage to your Homepage!
      gethomepage.dev/enabled: "true"
      gethomepage.dev/name: "Homepage"
      gethomepage.dev/description: "Dynamically Detected Homepage"
      gethomepage.dev/group: "Dynamic"
      gethomepage.dev/icon: "homepage.png"
    hosts:
      - host: homepage.example.com
        paths:
          - path: /
            pathType: Prefix

Install with Kubernetes Manifests

If you don't want to use the unofficial Helm chart, you can also create your own Kubernetes manifest(s) and apply them with kubectl apply -f filename.yaml.

Here's a working example of the resources you need:

ServiceAccount

apiVersion: v1
kind: ServiceAccount
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
secrets:
  - name: homepage

Secret

apiVersion: v1
kind: Secret
type: kubernetes.io/service-account-token
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
  annotations:
    kubernetes.io/service-account.name: homepage

ConfigMap

apiVersion: v1
kind: ConfigMap
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
data:
  kubernetes.yaml: |
        mode: cluster
  settings.yaml: ""
  #settings.yaml: |
  #  providers:
  #    longhorn:
  #      url: https://longhorn.my.network
  custom.css: ""
  custom.js: ""
  bookmarks.yaml: |
    - Developer:
        - Github:
            - abbr: GH
              href: https://github.com/    
  services.yaml: |
    - My First Group:
        - My First Service:
            href: http://localhost/
            description: Homepage is awesome

    - My Second Group:
        - My Second Service:
            href: http://localhost/
            description: Homepage is the best

    - My Third Group:
        - My Third Service:
            href: http://localhost/
            description: Homepage is 😎    
  widgets.yaml: |
    - kubernetes:
        cluster:
          show: true
          cpu: true
          memory: true
          showLabel: true
          label: "cluster"
        nodes:
          show: true
          cpu: true
          memory: true
          showLabel: true
    - resources:
        backend: resources
        expanded: true
        cpu: true
        memory: true
        network: default
    - search:
        provider: duckduckgo
        target: _blank    
  docker.yaml: ""

ClusterRole and ClusterRoleBinding

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: homepage
  labels:
    app.kubernetes.io/name: homepage
rules:
  - apiGroups:
      - ""
    resources:
      - namespaces
      - pods
      - nodes
    verbs:
      - get
      - list
  - apiGroups:
      - extensions
      - networking.k8s.io
    resources:
      - ingresses
    verbs:
      - get
      - list
  - apiGroups:
      - traefik.containo.us
    resources:
      - ingressroutes
    verbs:
      - get
      - list
  - apiGroups:
      - metrics.k8s.io
    resources:
      - nodes
      - pods
    verbs:
      - get
      - list
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: homepage
  labels:
    app.kubernetes.io/name: homepage
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: homepage
subjects:
  - kind: ServiceAccount
    name: homepage
    namespace: default

Service

apiVersion: v1
kind: Service
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
  annotations:
spec:
  type: ClusterIP
  ports:
    - port: 3000
      targetPort: http
      protocol: TCP
      name: http
  selector:
    app.kubernetes.io/name: homepage

Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
spec:
  revisionHistoryLimit: 3
  replicas: 1
  strategy:
    type: RollingUpdate
  selector:
    matchLabels:
      app.kubernetes.io/name: homepage
  template:
    metadata:
      labels:
        app.kubernetes.io/name: homepage
    spec:
      serviceAccountName: homepage
      automountServiceAccountToken: true
      dnsPolicy: ClusterFirst
      enableServiceLinks: true
      containers:
        - name: homepage
          image: "ghcr.io/gethomepage/homepage:latest"
          imagePullPolicy: Always
          ports:
            - name: http
              containerPort: 3000
              protocol: TCP
          volumeMounts:
            - mountPath: /app/config/custom.js
              name: homepage-config
              subPath: custom.js
            - mountPath: /app/config/custom.css
              name: homepage-config
              subPath: custom.css
            - mountPath: /app/config/bookmarks.yaml
              name: homepage-config
              subPath: bookmarks.yaml
            - mountPath: /app/config/docker.yaml
              name: homepage-config
              subPath: docker.yaml
            - mountPath: /app/config/kubernetes.yaml
              name: homepage-config
              subPath: kubernetes.yaml
            - mountPath: /app/config/services.yaml
              name: homepage-config
              subPath: services.yaml
            - mountPath: /app/config/settings.yaml
              name: homepage-config
              subPath: settings.yaml
            - mountPath: /app/config/widgets.yaml
              name: homepage-config
              subPath: widgets.yaml
            - mountPath: /app/config/logs
              name: logs
      volumes:
        - name: homepage-config
          configMap:
            name: homepage
        - name: logs
          emptyDir: {}

Ingress

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: homepage
  namespace: default
  labels:
    app.kubernetes.io/name: homepage
  annotations:
    gethomepage.dev/description: Dynamically Detected Homepage
    gethomepage.dev/enabled: "true"
    gethomepage.dev/group: Cluster Management
    gethomepage.dev/icon: homepage.png
    gethomepage.dev/name: Homepage
spec:
  rules:
    - host: "homepage.my.network"
      http:
        paths:
          - path: "/"
            pathType: Prefix
            backend:
              service:
                name: homepage
                port:
                  number: 3000

Multiple Replicas

If you plan to deploy homepage with a replica count greater than 1, you may want to consider enabling sticky sessions on the homepage route. This will prevent unnecessary re-renders on page loads and window / tab focusing. The procedure for enabling sticky sessions depends on your Ingress controller. Below is an example using Traefik as the Ingress controller.

apiVersion: traefik.io/v1alpha1
kind: IngressRoute
metadata:
  name: homepage.example.com
spec:
  entryPoints:
    - websecure
  routes:
    - kind: Rule
      match: Host(`homepage.example.com`)
      services:
        - kind: Service
          name: homepage
          port: 3000
          sticky:
            cookie:
              httpOnly: true
              secure: true
              sameSite: none