Setup dir rename.

setup/cluster-services/cert-manager/kustomize.template/internal-wildcard-certificate.yaml

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+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: wildcard-internal-wild-cloud
+  namespace: cert-manager
+spec:
+  secretName: wildcard-internal-wild-cloud-tls
+  dnsNames:
+    - "*.{{ .cloud.internalDomain }}"
+    - "{{ .cloud.internalDomain }}"
+  issuerRef:
+    name: letsencrypt-prod
+    kind: ClusterIssuer
+  duration: 2160h # 90 days
+  renewBefore: 360h # 15 days
+  privateKey:
+    algorithm: RSA
+    size: 2048

setup/cluster-services/cert-manager/kustomize.template/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+- namespace.yaml
+- letsencrypt-staging-dns01.yaml
+- letsencrypt-prod-dns01.yaml
+- internal-wildcard-certificate.yaml
+- wildcard-certificate.yaml
+
+# Note: cert-manager.yaml contains the main installation manifests
+# but is applied separately via URL in the install script

setup/cluster-services/cert-manager/kustomize.template/letsencrypt-prod-dns01.yaml

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+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-prod
+spec:
+  acme:
+    email: {{ .operator.email }}
+    privateKeySecretRef:
+      name: letsencrypt-prod
+    server: https://acme-v02.api.letsencrypt.org/directory
+    solvers:
+    # DNS-01 solver for wildcard certificates
+    - dns01:
+        cloudflare:
+          email: {{ .operator.email }}
+          apiTokenSecretRef:
+            name: cloudflare-api-token
+            key: api-token
+      selector:
+        dnsZones:
+        - "{{ .cluster.certManager.cloudflare.domain }}"
+    # Keep the HTTP-01 solver for non-wildcard certificates
+    - http01:
+        ingress:
+          class: traefik

setup/cluster-services/cert-manager/kustomize.template/letsencrypt-staging-dns01.yaml

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+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-staging
+spec:
+  acme:
+    email: {{ .operator.email }}
+    privateKeySecretRef:
+      name: letsencrypt-staging
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
+    solvers:
+    # DNS-01 solver for wildcard certificates
+    - dns01:
+        cloudflare:
+          email: {{ .operator.email }}
+          apiTokenSecretRef:
+            name: cloudflare-api-token
+            key: api-token
+      selector:
+        dnsZones:
+        - "{{ .cluster.certManager.cloudflare.domain }}"
+    # Keep the HTTP-01 solver for non-wildcard certificates
+    - http01:
+        ingress:
+          class: traefik

setup/cluster-services/cert-manager/kustomize.template/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cert-manager

setup/cluster-services/cert-manager/kustomize.template/wildcard-certificate.yaml

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+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: wildcard-wild-cloud
+  namespace: cert-manager
+spec:
+  secretName: wildcard-wild-cloud-tls
+  dnsNames:
+    - "*.{{ .cloud.domain }}"
+    - "{{ .cloud.domain }}"
+  issuerRef:
+    name: letsencrypt-prod
+    kind: ClusterIssuer
+  duration: 2160h # 90 days
+  renewBefore: 360h # 15 days
+  privateKey:
+    algorithm: RSA
+    size: 2048