Add Sigvild Gallery wedding photo application with automated deployment and improve Caddy plugin management

roles/caddy/tasks/main.yml

@@ -3,19 +3,35 @@
   set_fact:
     dns_challenge_needed: "{{ caddy_dns_provider == 'cloudflare' and cloudflare_api_token != '' }}"
 
+- name: Check if Caddy is already installed
+  command: /usr/bin/caddy version
+  register: caddy_version_check
+  failed_when: false
+  changed_when: false
+  when: dns_challenge_needed | bool
+
+- name: Check if installed Caddy has Cloudflare plugin
+  command: /usr/bin/caddy list-modules --packages
+  register: caddy_modules_check
+  failed_when: false
+  changed_when: false
+  when: dns_challenge_needed | bool and caddy_version_check.rc == 0
+
 - name: Install standard Caddy (if no DNS challenge needed)
   pacman:
     name: caddy
     state: present
-  when: not dns_challenge_needed | bool
+  when: not dns_challenge_needed and not caddy_version_check | bool
   notify: restart caddy
 
 - name: Download Caddy with Cloudflare plugin (if DNS challenge needed)
   get_url:
-    url: "https://caddyserver.com/api/download?os=linux&arch=amd64&p=github.com/caddy-dns/cloudflare"
-    dest: /tmp/caddy-with-cloudflare
-    mode: '0755'
-  when: dns_challenge_needed | bool
+   url: "https://caddyserver.com/api/download?os=linux&arch=amd64&p=github.com/caddy-dns/cloudflare"
+   dest: /tmp/caddy-with-cloudflare
+   mode: '0755'
+  when:
+   - dns_challenge_needed | bool
+   - caddy_version_check.rc != 0 or 'github.com/caddy-dns/cloudflare' not in caddy_modules_check.stdout | default('')
 
 - name: Install Caddy with Cloudflare plugin
   copy:
@@ -24,7 +40,7 @@
     mode: '0755'
     remote_src: yes
     backup: yes
-  when: dns_challenge_needed | bool
+  when: dns_challenge_needed and caddy_version_check | bool
   notify: restart caddy
 
 - name: Clean up temporary Caddy binary