feat(caddy): add ansible role

roles/caddy/defaults/main/config.yml

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+---
+caddy_config: |+2
+  {
+        auto_https disable_redirects
+  }
+
+  (proxyheaders) {
+      header_up X-Forwarded-Ssl on
+      header_up Host {host}
+      header_up X-Real-IP {remote}
+      header_up X-Forwarded-For {remote}
+      # header_up X-Forwarded-Port {port}
+      header_up X-Forwarded-Proto {scheme}
+      header_up X-Url-Scheme {scheme}
+      header_up X-Forwarded-Host {host}
+  }
+  
+  # Import all configurations
+  import {{ caddy_dynamic_configs_dir }}/*/Caddyfile
+  
+  :80 {
+      redir /  https://{host}{uri} 301
+  }

roles/caddy/defaults/main/container.yml

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+---
+caddy_container_image_registry: "docker.io"
+caddy_container_image_namespace: "library"
+caddy_container_image_repository: "caddy"
+caddy_container_image_name: >-2
+  {{ [
+    caddy_container_image_registry | default([], true),
+    caddy_container_image_namespace | default([], true),
+    caddy_container_image_repository
+  ] | flatten | join('/') }}
+
+caddy_container_image_tag: ~
+caddy_container_image: >-2
+  {{ [
+    caddy_container_image_name,
+    caddy_container_image_tag | default(caddy_version, true)
+  ] | join(':') }}
+caddy_container_image_source: "pull"
+caddy_container_image_force_source: >-2
+  {{ caddy_container_image_tag | ansible.builtin.type_debug != 'NoneType' }}
+caddy_container_image_state: "{{ caddy_state }}"
+
+caddy_container_name: "caddy"
+caddy_container_env: ~
+caddy_container_ports: ~
+caddy_container_user: ~
+caddy_container_labels: ~
+caddy_container_volumes: ~
+caddy_container_config_dir: "/etc/caddy"
+caddy_container_default_volumes:
+  - "{{ caddy_config_dir }}:{{ caddy_container_config_dir }}:ro"
+  - "{{ caddy_dynamic_configs_dir }}:{{ caddy_dynamic_configs_dir }}:ro"
+  - "{{ caddy_config_internal_dir }}:/config:rw"
+  - "{{ caddy_state_dir }}:/data:rw"
+caddy_container_all_volumes: >-2
+  {{ caddy_container_default_volumes | default([], true)
+  + caddy_container_volumes | default([], true) }}
+caddy_container_state: >-2
+  {{ (caddy_state == 'present') | ternary('started', 'absent') }}
+caddy_container_restart_policy: "on-failure"
+caddy_container_networks: ~
+caddy_container_network_mode: ~
+caddy_container_etc_hosts: ~

roles/caddy/defaults/main/main.yml

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+---
+caddy_user: "caddy"
+caddy_version: "2.10.2"
+caddy_config_file: "/etc/caddy/Caddyfile"
+caddy_config_dir: "{{ caddy_config_file | ansible.builtin.dirname }}"
+caddy_config_internal_dir: "{{ caddy_config_dir }}/config"
+caddy_dynamic_configs_dir: "{{ caddy_config_dir }}/sites.d"
+caddy_state_dir: "/var/lib/caddy"
+
+caddy_state: "present"
+caddy_deployment_method: "docker"

roles/caddy/defaults/main/user.yml

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+---
+caddy_user_state: "{{ caddy_state }}"
+caddy_user_system: true
+caddy_user_create_home: false
+
+caddy_run_uid: "{{ caddy_user_info.uid | default(caddy_user) }}"
+caddy_run_gid: "{{ caddy_user_info.group | default(caddy_user) }}"