feat(cloudflare-ddns): add cloudflare-ddns role

roles/cloudflare-ddns/README.md

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+cloudflare-ddns
+===============
+
+Dynamic DNS using Cloudflare.
+
+Requirements
+------------
+
+VoidLinux, as the tool is not packaged for other distros, and installing using cargo isn't supported yet.
+
+Role Variables
+--------------
+
+- **cloudflare_ddns_api_token**: API token with access to the zone
+- **cloudflare_ddns_domain**: Domain for which to update the record
+- **cloudflare_ddns_zone**: Zone which contains the domain
+
+Example Playbook
+----------------
+
+```yaml
+- hosts: servers
+  collections:
+  - jcgruenhage.base
+  roles:
+  - role: cloudflare-ddns
+    cloudflare_ddns_api_token: your-token-here
+    cloudflare_ddns_zone: example.org
+    cloudflare_ddns_domain: host.example.org
+```
+
+License
+-------
+
+AGPL-3.0-only
+
+Author Information
+------------------
+
+Jan Christian Grünhage <jan.christian@gruenhage.xyz>

roles/cloudflare-ddns/defaults/main.yml

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+---
+# defaults file for cloudflare-ddns

roles/cloudflare-ddns/handlers/main.yml

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+---
+# handlers file for cloudflare-ddns

roles/cloudflare-ddns/meta/main.yml

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+galaxy_info:
+  author: Jan Christian Grünhage
+  description: Cloudflare DDNS tool
+  license: AGPL-3.0-only
+  min_ansible_version: 2.10
+  platforms:
+  - name: VoidLinux
+    versions:
+    - all
+  galaxy_tags: []
+dependencies: []

roles/cloudflare-ddns/tasks/main.yml

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+---
+# tasks file for cloudflare-ddns
+- name: install cloudflare-ddns package
+  become: true
+  xbps:
+    name: cloudflare-ddns
+    state: present
+- name: template wrapper script
+  become: true
+  no_log: true
+  template:
+    src: wrapper.sh.j2
+    dest: /usr/local/bin/cloudflare-ddns-wrapper.sh
+    mode: 755
+- name: add cron job
+  become: true
+  cron:
+    name: cloudflare-ddns
+    job: /usr/local/bin/cloudflare-ddns-wrapper.sh

roles/cloudflare-ddns/templates/wrapper.sh.j2

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+#!/bin/sh
+exec /usr/bin/cloudflare-ddns \
+  --token {{ cloudflare_ddns_api_token }} \
+  --domain {{ cloudflare_ddns_domain }} \
+  --zone {{ cloudflare_ddns_zone }} \
+  --cache /tmp/cloudflare-ddns-ip-cache

roles/cloudflare-ddns/vars/main.yml

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+---
+# vars file for cloudflare-ddns