feat: add recommended Caddyfile and update usage guide for production configuration

setup/nginx-to-caddy/validate_caddy.sh

@@ -49,35 +49,41 @@ fi
 
 CONFIG_FILE="$(cd "$(dirname "$CONFIG_FILE")" && pwd)/$(basename "$CONFIG_FILE")"
 
+docker_env_args=()
+
 if [[ "$USE_DOCKER" == "true" ]]; then
   require_cmd docker
-  docker_env_args=()
   if [[ -n "${CF_API_TOKEN:-}" ]]; then
     docker_env_args+=( -e "CF_API_TOKEN=${CF_API_TOKEN}" )
   elif [[ -n "${CLOUDFLARE_API_TOKEN:-}" ]]; then
     docker_env_args+=( -e "CF_API_TOKEN=${CLOUDFLARE_API_TOKEN}" )
   fi
 
+  run_docker_caddy() {
+    if [[ "${#docker_env_args[@]}" -gt 0 ]]; then
+      docker run --rm "${docker_env_args[@]}" "$@"
+    else
+      docker run --rm "$@"
+    fi
+  }
+
   if [[ "$FORMAT_FILE" == "true" ]]; then
     log_info "Formatting Caddyfile with Docker..."
-    docker run --rm \
-      "${docker_env_args[@]}" \
+    run_docker_caddy \
       -v "$CONFIG_FILE:/etc/caddy/Caddyfile" \
       "$CADDY_IMAGE" caddy fmt --overwrite /etc/caddy/Caddyfile
   fi
 
   if [[ "$DO_ADAPT" == "true" ]]; then
     log_info "Adapting Caddyfile (Docker)..."
-    docker run --rm \
-      "${docker_env_args[@]}" \
+    run_docker_caddy \
       -v "$CONFIG_FILE:/etc/caddy/Caddyfile:ro" \
       "$CADDY_IMAGE" caddy adapt --config /etc/caddy/Caddyfile --adapter caddyfile >/dev/null
   fi
 
   if [[ "$DO_VALIDATE" == "true" ]]; then
     log_info "Validating Caddyfile (Docker)..."
-    docker run --rm \
-      "${docker_env_args[@]}" \
+    run_docker_caddy \
       -v "$CONFIG_FILE:/etc/caddy/Caddyfile:ro" \
       "$CADDY_IMAGE" caddy validate --config /etc/caddy/Caddyfile --adapter caddyfile
   fi