add coredns app

packages/apps/coredns/.helmignore

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+.helmignore
+/logos
+/Makefile

packages/apps/coredns/Chart.yaml

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+apiVersion: v2
+name: coredns
+description: Managed Coredns service
+icon: /logos/coredns.svg
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.0.1
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.32.0"

packages/apps/coredns/templates/coredns.yaml

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+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: {{ .Release.Name }}-system
+spec:
+  chart:
+    spec:
+      chart: cozy-coredns
+      reconcileStrategy: Revision
+      sourceRef:
+        kind: HelmRepository
+        name: cozystack-system
+        namespace: cozy-system
+      version: '{{ .Chart.AppVersion }}'
+  interval: 1m0s
+  timeout: 5m0s
+  values:
+    servers:
+    - zones:
+      - zone: .
+      port: 53
+      plugins:
+      - name: errors
+      - name: health
+        configBlock: |-
+          lameduck 5s
+      - name: ready
+      - name: kubernetes
+        parameters: cluster.local in-addr.arpa ip6.arpa
+        configBlock: |-
+          pods insecure
+          fallthrough in-addr.arpa ip6.arpa
+          ttl 30
+      - name: prometheus
+        parameters: 0.0.0.0:9153
+      - name: forward
+        parameters: {{ .Values.forward_parametr | default ". /etc/resolv.conf" }}
+      - name: cache
+        parameters: 30
+      - name: loop
+      - name: reload
+      - name: loadbalance

packages/apps/coredns/values.schema.json

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+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "Helm Values Schema",
+    "type": "object",
+    "properties": {
+      "forward_params": {
+        "description": "DNS forward parameter. If set to null, the default . /etc/resolv.conf will be used.",
+        "type": ["string", "null"],
+        "default": null,
+        "examples": [". 1.1.1.1", null]
+      }
+    },
+    "required": [],
+    "additionalProperties": false
+  }

packages/apps/coredns/values.yaml

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+## @section Common parameters
+##
+## @param forward_params Set the `forward` parameter for CoreDNS.
+##                       This parameter can either be a DNS server (e.g., "1.1.1.1")
+##                       or set to null to use the default forwarder (". /etc/resolv.conf").
+##
+## Example Usage:
+##
+## To forward DNS queries to Cloudflare's DNS server:
+##
+## forward_params: ". 1.1.1.1"
+##
+## To use the default resolver configuration:
+##
+## forward_params: null
+##
+forward_params: null