Allow theme to override favicon.ico file.

[GrahamDumpleton]

Is your feature request related to a problem? Please describe.

One can't currently override favicon.ico files using theme.

Describe the solution you'd like

Allow favicon.ico file in theme secret to override favicon.ico file in portal and session dashboards.

Describe alternatives you've considered

As alternative/interim solution you can use Kyverno policy.

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: add-favicon-secret-and-volume-to-portal
spec:
  rules:
    - name: create-favicon-secret
      match:
        resources:
          kinds:
            - Deployment
          selector:
            matchLabels:
              training.educates.dev/component: "portal"
              training.educates.dev/portal.services.dashboard: "true"
      generate:
        kind: Secret
        apiVersion: v1
        name: "{{request.object.metadata.name}}-favicon"
        namespace: "{{request.object.metadata.namespace}}"
        synchronize: true
        data:
          apiVersion: v1
          kind: Secret
          metadata:
            name: "{{request.object.metadata.name}}-favicon"
            namespace: "{{request.object.metadata.namespace}}"
          type: Opaque
          data:
            favicon: "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"
    - name: patch-deployment-to-add-volume
      match:
        resources:
          kinds:
            - Deployment
          selector:
            matchLabels:
              training.educates.dev/component: "portal"
              training.educates.dev/portal.services.dashboard: "true"
      mutate:
        patchStrategicMerge:
          spec:
            template:
              spec:
                volumes:
                - name: favicon-volume
                  secret:
                    secretName: "{{request.object.metadata.name}}-favicon"
                containers:
                - name: portal
                  volumeMounts:
                  - name: favicon-volume
                    mountPath: "/opt/app-root/src/static/images/favicon.ico"
                    subPath: "favicon"

This is dependent on internal details of container.

Additional information

No response