Draft: generate cozystack values

Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>

packages/system/cozystack-values/Chart.yaml

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+apiVersion: v2
+name: cozy-cozystack-values
+version: 0.0.0 # Placeholder, the actual version will be automatically set during the build process
+

packages/system/cozystack-values/helmrelease.yaml

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+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: cozystack-values
+  namespace: tenant-root
+  labels:
+    cozystack.io/repository: system
+    cozystack.io/system-app: "true"
+spec:
+  interval: 5m
+  releaseName: cozystack-values
+  install:
+    remediation:
+      retries: -1
+  upgrade:
+    remediation:
+      retries: -1
+  chart:
+    spec:
+      chart: cozy-cozystack-values
+      reconcileStrategy: Revision
+      sourceRef:
+        kind: HelmRepository
+        name: cozystack-system
+        namespace: cozy-system
+      version: '>= 0.0.0-0'
+  valuesFrom:
+    # Cluster configuration from cozystack ConfigMap
+    # The ConfigMap data keys (root-host, bundle-name, etc.) will be mapped to _cluster
+    - kind: ConfigMap
+      name: cozystack
+      namespace: cozy-system
+      targetPath: _cluster
+    # Branding configuration from cozystack-branding ConfigMap
+    # All keys from the ConfigMap data will be nested under _cluster.branding
+    - kind: ConfigMap
+      name: cozystack-branding
+      namespace: cozy-system
+      targetPath: _cluster.branding
+      optional: true
+    # Scheduling configuration from cozystack-scheduling ConfigMap
+    # All keys from the ConfigMap data will be nested under _cluster.scheduling
+    - kind: ConfigMap
+      name: cozystack-scheduling
+      namespace: cozy-system
+      targetPath: _cluster.scheduling
+      optional: true
+    # Kube root CA from kube-root-ca.crt ConfigMap
+    # Extract the ca.crt key and place it at _cluster.kubeRootCa
+    - kind: ConfigMap
+      name: kube-root-ca.crt
+      namespace: kube-system
+      targetPath: _cluster.kubeRootCa
+      valuesKey: ca.crt
+      optional: true
+  values:
+    _namespace:
+      etcd: tenant-root
+      monitoring: tenant-root
+      ingress: tenant-root
+      seaweedfs: tenant-root
+      # host will be determined from _cluster.root-host or tenantRootHost
+      # Default to example.org if neither is set
+      host: "example.org"
+

packages/system/cozystack-values/templates/secret.yaml

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+{{- /* Default values for _cluster config to ensure all required keys exist */}}
+{{- $clusterDefaults := dict
+    "root-host" ""
+    "bundle-name" ""
+    "clusterissuer" "http01"
+    "oidc-enabled" "false"
+    "expose-services" ""
+    "expose-ingress" "tenant-root"
+    "expose-external-ips" ""
+    "cluster-domain" "cozy.local"
+    "api-server-endpoint" ""
+}}
+{{- $clusterConfig := mergeOverwrite $clusterDefaults (.Values._cluster | default dict) }}
+{{- $host := .Values._namespace.host | default "example.org" }}
+{{- if .Values._cluster }}
+  {{- if index .Values._cluster "root-host" }}
+    {{- $host = index .Values._cluster "root-host" }}
+  {{- end }}
+{{- end }}
+{{- /* Check if tenant-root HelmRelease host value is available */}}
+{{- if .Values.tenantRootHost }}
+  {{- $host = .Values.tenantRootHost }}
+{{- end }}
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: cozystack-values
+  namespace: {{ .Values._namespace.etcd | default "tenant-root" }}
+  labels:
+    reconcile.fluxcd.io/watch: Enabled
+type: Opaque
+stringData:
+  values.yaml: |
+    _cluster:
+      {{- $clusterConfig | toYaml | nindent 6 }}
+      {{- with .Values._cluster.branding }}
+      branding:
+        {{- . | toYaml | nindent 8 }}
+      {{- end }}
+      {{- with .Values._cluster.scheduling }}
+      scheduling:
+        {{- . | toYaml | nindent 8 }}
+      {{- end }}
+      {{- with .Values._cluster.kubeRootCa }}
+      kube-root-ca: {{ . | b64enc | quote }}
+      {{- end }}
+    _namespace:
+      etcd: {{ .Values._namespace.etcd | default "tenant-root" | quote }}
+      monitoring: {{ .Values._namespace.monitoring | default "tenant-root" | quote }}
+      ingress: {{ .Values._namespace.ingress | default "tenant-root" | quote }}
+      seaweedfs: {{ .Values._namespace.seaweedfs | default "tenant-root" | quote }}
+      host: {{ $host | quote }}
+

packages/system/cozystack-values/values.yaml

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+# Default values for cozystack-values chart
+# These values will be populated via valuesFrom in the HelmRelease
+
+# Cluster configuration from cozystack ConfigMap
+# The ConfigMap data keys will be mapped directly to _cluster
+_cluster: {}
+
+# Namespace configuration
+_namespace:
+  etcd: tenant-root
+  monitoring: tenant-root
+  ingress: tenant-root
+  seaweedfs: tenant-root
+  host: "example.org"
+
+# Host value from tenant-root HelmRelease (if available)
+tenantRootHost: ""
+