feat(cert-manager): Add Cloudns issuer and DNS-01 challenge support

- Introduced a new Cloudns issuer configuration for cert-manager.
- Created separate tasks for DNS-01 and HTTP-01 challenge issuers.
- Updated cert-manager tasks to include Cloudns provider and manage secrets.
- Refactored existing LetsEncrypt issuer registration to use new task structure.
- Added necessary Kubernetes resources for Cloudns integration, including RBAC and certificates.
- Updated Terraform configurations to support new DNS records and service changes.
- Adjusted deployment strategies for CoreDNS and Open WebUI applications.

ansible/roles/microk8s/tasks/issuers/providers/cloudns.yml

@@ -0,0 +1,35 @@
+- name: Cermanager | Create cloudns credentials
+  environment:
+    PATH: "{{ k8s_venv }}/bin:{{ ansible_env.PATH }}"
+  vars:
+    ansible_python_interpreter: "{{ k8s_venv }}/bin/python"
+  kubernetes.core.k8s:
+    state: present
+    kubeconfig: "{{ k8s_kubeconfig }}"
+    definition:
+      apiVersion: v1
+      kind: Secret
+      metadata:
+        name: cert-manager-webhook-cloudns-api-secret
+        namespace: cert-manager
+      type: Opaque
+      data:
+        auth_id: "{{ microk8s_cloudns_auth_id | b64encode }}"
+        auth_password: "{{ microk8s_cloudns_auth_password | b64encode }}"
+
+- name: CertManager | Copy clouDNS issuer manifest to Kubernetes cluster
+  ansible.builtin.copy:
+    src: "cert-manager/cloudns-issuer.yaml"
+    dest: "{{ k8s_etc }}/k8s-certmanager-cloudns.yaml"
+    mode: "0600"
+
+- name: CertManager | Apply clouDNS issuer manifests
+  environment:
+    PATH: "{{ k8s_venv }}/bin:{{ ansible_env.PATH }}"
+  vars:
+    ansible_python_interpreter: "{{ k8s_venv }}/bin/python"
+  kubernetes.core.k8s:
+    state: present
+    kubeconfig: "{{ k8s_kubeconfig }}"
+    src: "{{ k8s_etc }}/k8s-certmanager-cloudns.yaml"
+    wait: true