feat: flatten core directory

cluster/core/cert-manager/letsencrypt-production.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-production
+spec:
+  acme:
+    server: https://acme-v02.api.letsencrypt.org/directory
+    email: "${SECRET_CLOUDFLARE_EMAIL}"
+    privateKeySecretRef:
+      name: letsencrypt-production
+    solvers:
+    - dns01:
+        cloudflare:
+          email: "${SECRET_CLOUDFLARE_EMAIL}"
+          apiKeySecretRef:
+            name: cloudflare-token-secret
+            key: cloudflare-token