Switch to Caddy Watcher autodiscovery

- Replace external proxy_apps network with local caddy network
- Add CADDY_* environment variables to web service
- Remove adminer service
- Update .env.example with Caddy configuration options

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: twiesing

.env.example

@@ -1,29 +1,58 @@
+# Caddy Autodiscovery
+CADDY_DOMAIN=wordpress.example.com
+CADDY_TYPE=external
+CADDY_PORT=80
+CADDY_TLS=true
+CADDY_COMPRESSION=true
+CADDY_HEADER=true
+CADDY_PERFORMANCE=true
+CADDY_SECURITY=true
+CADDY_SEO=true
+CADDY_WWW_REDIRECT=true
+CADDY_WORDPRESS=true
+CADDY_LOGGING=false
+
+# Database
 MARIADB_VERSION=
 DB_HOST=
 DB_USER=
 DB_PASSWORD=
 DB_ROOT_PASSWORD=
 DB_NAME=
+
+# WordPress
 WORDPRESS_CRON_SCHEDULE=
 WORDPRESS_UPDATE_SCHEDULE=
 WORDPRESS_UPDATE_PLUGIN_PARAMS=
 WORDPRESS_UPDATE_THEME_PARAMS=
 WORDPRESS_DISABLE_NINJAFIREWALL=
+
+# Backup
 BACKUP_CRON_SCHEDULE=
+
+# PHP-FPM
 PHP_FPM_PM_MODE=
 PHP_FPM_PM_MAX_CHILDREN=
 PHP_FPM_PM_START_SERVERS=
 PHP_FPM_PM_MIN_SPARE_SERVERS=
 PHP_FPM_PM_MAX_SPARE_SERVERS=
 PHP_FPM_PM_MAX_REQUESTS=
+
+# MariaDB Performance
 MARIADB_INNODB_BUFFER_SIZE=
 MARIADB_MAX_CONNECTIONS=
 MARIADB_TMP_TABLE_SIZE=
 MARIADB_MAX_HEAP_TABLE_SIZE=
+
+# SSH
 SSH_USERNAME=
 SSH_PORT=
+
+# Docker Compose
 COMPOSE_PROFILES=
 PERL5LIB=/usr/lib/perl5/vendor_perl/aarch64-linux-thread-multi
+
+# SMTP
 SMTP_USER=
 SMTP_PASS=
 SMTP_FROM=

docker-compose.yml

@@ -45,6 +45,18 @@ services:
       - TZ=Europe/Berlin
       - COMPOSE_PROJECT_NAME
       - PERL5LIB=${PERL5LIB:-/usr/lib/perl5/vendor_perl/aarch64-linux-thread-multi}
+      - CADDY_DOMAIN=${CADDY_DOMAIN}
+      - CADDY_TYPE=${CADDY_TYPE:-external}
+      - CADDY_PORT=${CADDY_PORT:-80}
+      - CADDY_TLS=${CADDY_TLS:-true}
+      - CADDY_COMPRESSION=${CADDY_COMPRESSION:-true}
+      - CADDY_HEADER=${CADDY_HEADER:-true}
+      - CADDY_PERFORMANCE=${CADDY_PERFORMANCE:-true}
+      - CADDY_SECURITY=${CADDY_SECURITY:-true}
+      - CADDY_SEO=${CADDY_SEO:-true}
+      - CADDY_WWW_REDIRECT=${CADDY_WWW_REDIRECT:-true}
+      - CADDY_WORDPRESS=${CADDY_WORDPRESS:-true}
+      - CADDY_LOGGING=${CADDY_LOGGING:-false}
     volumes:
       - $PWD/data/web:/var/www/html
       - $PWD/conf/nginx/purge.pm:${PERL5LIB:-/usr/lib/perl5/vendor_perl/aarch64-linux-thread-multi}/purge.pm
@@ -54,7 +66,7 @@ services:
       - $PWD/conf/nginx/default.conf.template:/etc/nginx/templates/default.conf.template
     networks:
       app_web:
-      proxy_apps:
+      caddy:
     depends_on:
       - app
 
@@ -82,17 +94,6 @@ services:
     networks:
       app_db:
 
-  adminer:
-    image: adminer
-    restart: unless-stopped
-    environment:
-      - ADMINER_DEFAULT_SERVER=db
-    networks:
-      app_db:
-      proxy_apps:
-    profiles:
-      - adminer
-
   ssh:
     image: lscr.io/linuxserver/openssh-server:latest
     restart: unless-stopped
@@ -125,6 +126,4 @@ networks:
   default:
   app_db:
   app_web:
-  proxy_apps:
-    name: proxy_apps
-    external: true
+  caddy: