refactor: заменить Caddy на Traefik v3

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

@@ -1,7 +1,7 @@
-# Скопируйте в .env или запустите: go run ./cmd/install
+# Скопируйте в .env или запустите: ./install.sh
 
 SITE_DOMAIN=localhost
-CADDY_EMAIL=admin@localhost
+ACME_EMAIL=admin@localhost
 HTTP_PORT=80
 HTTPS_PORT=443
 

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [Unreleased]
+
+### Изменено
+
+- Caddy заменён на **Traefik v3** (маршруты в `traefik/dynamic/shop.yml`)
+- `CADDY_EMAIL` → `ACME_EMAIL` в `.env`
+
 ## [0.20] — 2026-05-16
 
 ### Добавлено

README.md

@@ -2,7 +2,7 @@
 
 **Версия:** `0.20` · [Релизы](https://git.evilfox.cc/test/shop3/releases)
 
-Главная страница интернет-магазина на Go с PostgreSQL 17 (SSL), reverse proxy Caddy и Docker Compose.
+Главная страница интернет-магазина на Go с PostgreSQL 17 (SSL), reverse proxy **Traefik** и Docker Compose.
 
 Репозиторий: https://git.evilfox.cc/test/shop3.git
 
@@ -21,7 +21,7 @@ git clone --branch v0.20 https://git.evilfox.cc/test/shop3.git
 git clone https://git.evilfox.cc/test/shop3.git
 cd shop3
 
-# 2. Установщик (домен + база данных → .env и caddy/Caddyfile)
+# 2. Установщик (домен + база данных → .env и traefik/dynamic/shop.yml)
 chmod +x install.sh check.sh
 ./install.sh
 
@@ -59,7 +59,7 @@ docker compose up --build -d
 
 ```bash
 docker compose ps          # статус контейнеров
-docker compose logs -f     # логи
+docker compose logs -f traefik app   # логи прокси и приложения
 curl -s http://localhost/health | jq
 curl -s http://localhost/version | jq
 ```

caddy/Caddyfile

@@ -1,32 +0,0 @@
-{
-	email {$CADDY_EMAIL:admin@localhost}
-}
-
-# HTTP → приложение (для локальной разработки)
-:80 {
-	encode gzip zstd
-
-	@api path /health /version
-	handle @api {
-		reverse_proxy app:8080
-	}
-
-	handle /static/* {
-		reverse_proxy app:8080
-	}
-
-	handle {
-		reverse_proxy app:8080
-	}
-
-	log {
-		output stdout
-		format console
-	}
-}
-
-# HTTPS (раскомментируйте домен для продакшена)
-# {$SITE_DOMAIN} {
-# 	encode gzip zstd
-# 	reverse_proxy app:8080
-# }

check.sh

@@ -61,7 +61,7 @@ post_start_check() {
     if curl -sf "http://127.0.0.1:${HTTP_PORT:-80}/health" >/dev/null 2>&1; then
       echo "  ✓ /health:           OK"
     else
-      echo "  ✗ /health:           не отвечает — docker compose logs app caddy"
+      echo "  ✗ /health:           не отвечает — docker compose logs app traefik"
       exit 1
     fi
   elif docker compose exec -T app wget -qO- http://127.0.0.1:8080/health >/dev/null 2>&1; then

docker-compose.yml

@@ -53,26 +53,33 @@ services:
     environment:
       APP_PORT: "8080"
       DATABASE_URL: postgres://${POSTGRES_USER:-shop}:${POSTGRES_PASSWORD:-shop_secret}@postgres:5432/${POSTGRES_DB:-shopdb}?sslmode=require
+      COOKIE_SECURE: ${COOKIE_SECURE:-false}
     networks:
       - backend
       - frontend
     restart: unless-stopped
 
-  caddy:
+  traefik:
-    image: caddy:2-alpine
+    image: traefik:v3.2
-    container_name: shop-caddy
+    container_name: shop-traefik
     depends_on:
       - app
-    environment:
+    command:
-      SITE_DOMAIN: ${SITE_DOMAIN:-localhost}
+      - --log.level=INFO
-      CADDY_EMAIL: ${CADDY_EMAIL:-admin@localhost}
+      - --accesslog=true
+      - --providers.file.directory=/etc/traefik/dynamic
+      - --providers.file.watch=true
+      - --entrypoints.web.address=:80
+      - --entrypoints.websecure.address=:443
+      - --certificatesresolvers.letsencrypt.acme.email=${ACME_EMAIL:-admin@localhost}
+      - --certificatesresolvers.letsencrypt.acme.storage=/letsencrypt/acme.json
+      - --certificatesresolvers.letsencrypt.acme.httpchallenge.entrypoint=web
     ports:
       - "${HTTP_PORT:-80}:80"
       - "${HTTPS_PORT:-443}:443"
     volumes:
-      - ./caddy/Caddyfile:/etc/caddy/Caddyfile:ro
+      - ./traefik/dynamic:/etc/traefik/dynamic:ro
-      - caddy_data:/data
+      - traefik_letsencrypt:/letsencrypt
-      - caddy_config:/config
     networks:
       - frontend
     restart: unless-stopped
@@ -80,8 +87,7 @@ services:
 volumes:
   postgres_data:
   postgres_ssl:
-  caddy_data:
+  traefik_letsencrypt:
-  caddy_config:
 
 networks:
   backend:

install.ps1

@@ -1,4 +1,4 @@
-# Интерактивная установка: домен, база данных, .env, Caddyfile
+# Интерактивная установка: домен, база данных, .env, Traefik
 $ErrorActionPreference = "Stop"
 Set-Location $PSScriptRoot
 go run ./cmd/install

internal/setup/setup.go

@@ -10,17 +10,17 @@ import (
 )
 
 type Config struct {
-	SiteDomain     string
+	SiteDomain  string
-	CaddyEmail     string
+	AcmeEmail   string
-	HTTPPort       string
+	HTTPPort    string
-	HTTPSPort      string
+	HTTPSPort   string
-	UseDockerDB    bool
+	UseDockerDB bool
-	DBHost         string
+	DBHost      string
-	DBPort         string
+	DBPort      string
-	DBUser         string
+	DBUser      string
-	DBPassword     string
+	DBPassword  string
-	DBName         string
+	DBName      string
-	DBSSLMode      string
+	DBSSLMode   string
 }
 
 func RunInteractive(root string) (Config, error) {
@@ -31,7 +31,7 @@ func RunInteractive(root string) (Config, error) {
 	cfg := Config{}
 
 	cfg.SiteDomain = ask(in, "Домен сайта (например shop.example.com, Enter = localhost)", "localhost")
-	cfg.CaddyEmail = ask(in, "Email для Let's Encrypt (Caddy)", "admin@localhost")
+	cfg.AcmeEmail = ask(in, "Email для Let's Encrypt (Traefik)", "admin@localhost")
 	cfg.HTTPPort = ask(in, "HTTP порт", "80")
 	cfg.HTTPSPort = ask(in, "HTTPS порт", "443")
 
@@ -58,7 +58,7 @@ func RunInteractive(root string) (Config, error) {
 		return cfg, err
 	}
 
-	fmt.Println("\n✓ Созданы файлы: .env, caddy/Caddyfile")
+	fmt.Println("\n✓ Созданы файлы: .env, traefik/dynamic/shop.yml")
 	fmt.Println("\nДальше (на сервере):")
 	fmt.Println("  docker compose up --build -d")
 	fmt.Println("  ./check.sh --after-start")
@@ -72,26 +72,30 @@ func RunInteractive(root string) (Config, error) {
 
 func WriteFiles(root string, cfg Config) error {
 	envPath := filepath.Join(root, ".env")
-	caddyPath := filepath.Join(root, "caddy", "Caddyfile")
+	traefikPath := filepath.Join(root, "traefik", "dynamic", "shop.yml")
 
 	if err := os.WriteFile(envPath, []byte(buildEnv(cfg)), 0o600); err != nil {
 		return fmt.Errorf("write .env: %w", err)
 	}
-	if err := os.MkdirAll(filepath.Dir(caddyPath), 0o755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(traefikPath), 0o755); err != nil {
 		return err
 	}
-	if err := os.WriteFile(caddyPath, []byte(buildCaddyfile(cfg)), 0o644); err != nil {
+	if err := os.WriteFile(traefikPath, []byte(buildTraefikDynamic(cfg)), 0o644); err != nil {
-		return fmt.Errorf("write Caddyfile: %w", err)
+		return fmt.Errorf("write traefik config: %w", err)
 	}
 	return nil
 }
 
 func buildEnv(cfg Config) string {
 	dbURL := DatabaseURL(cfg)
+	cookieSecure := "false"
+	if !useLocalDomain(cfg.SiteDomain) {
+		cookieSecure = "true"
+	}
 	lines := []string{
 		"# Сгенерировано установщиком ShopNova",
 		fmt.Sprintf("SITE_DOMAIN=%s", cfg.SiteDomain),
-		fmt.Sprintf("CADDY_EMAIL=%s", cfg.CaddyEmail),
+		fmt.Sprintf("ACME_EMAIL=%s", cfg.AcmeEmail),
 		fmt.Sprintf("HTTP_PORT=%s", cfg.HTTPPort),
 		fmt.Sprintf("HTTPS_PORT=%s", cfg.HTTPSPort),
 		"",
@@ -101,6 +105,8 @@ func buildEnv(cfg Config) string {
 		"",
 		fmt.Sprintf("DATABASE_URL=%s", dbURL),
 		"APP_PORT=8080",
+		fmt.Sprintf("COOKIE_SECURE=%s", cookieSecure),
+		"SESSION_TTL_HOURS=168",
 		"",
 		fmt.Sprintf("DB_HOST=%s", cfg.DBHost),
 		fmt.Sprintf("DB_PORT=%s", cfg.DBPort),
@@ -122,68 +128,56 @@ func DatabaseURL(cfg Config) string {
 	return u.String()
 }
 
-func buildCaddyfile(cfg Config) string {
+func buildTraefikDynamic(cfg Config) string {
-	email := cfg.CaddyEmail
-	if useLocalDomain(cfg.SiteDomain) {
-		return fmt.Sprintf(`{
-	email %s
-}
-
-:80 {
-	encode gzip zstd
-
-	@api path /health /version
-	handle @api {
-		reverse_proxy app:8080
-	}
-
-	handle /static/* {
-		reverse_proxy app:8080
-	}
-
-	handle {
-		reverse_proxy app:8080
-	}
-
-	log {
-		output stdout
-		format console
-	}
-}
-`, email)
-	}
-
 	domain := strings.TrimSpace(cfg.SiteDomain)
-	return fmt.Sprintf(`{
+	if useLocalDomain(domain) {
-	email %s
+		return fmt.Sprintf(`# Сгенерировано установщиком ShopNova (localhost)
-}
+http:
-
+  routers:
-%s {
+    shop:
-	encode gzip zstd
+      rule: "Host(`+"`%s`"+`)"
-
+      entryPoints: [web]
-	@api path /health /version
+      middlewares: [gzip]
-	handle @api {
+      service: shop
-		reverse_proxy app:8080
+  middlewares:
+    gzip:
+      compress: {}
+  services:
+    shop:
+      loadBalancer:
+        servers:
+          - url: "http://app:8080"
+`, domain)
 	}
 
-	handle /static/* {
+	return fmt.Sprintf(`# Сгенерировано установщиком ShopNova
-		reverse_proxy app:8080
+http:
-	}
+  routers:
-
+    shop-http:
-	handle {
+      rule: "Host(`+"`%s`"+`)"
-		reverse_proxy app:8080
+      entryPoints: [web]
-	}
+      middlewares: [redirect-https]
-
+      service: shop
-	log {
+    shop:
-		output stdout
+      rule: "Host(`+"`%s`"+`)"
-		format console
+      entryPoints: [websecure]
-	}
+      middlewares: [gzip]
-}
+      service: shop
-
+      tls:
-http://%s {
+        certResolver: letsencrypt
-	redir https://{host}{uri} permanent
+  middlewares:
-}
+    redirect-https:
-`, email, domain, domain)
+      redirectScheme:
+        scheme: https
+        permanent: true
+    gzip:
+      compress: {}
+  services:
+    shop:
+      loadBalancer:
+        servers:
+          - url: "http://app:8080"
+`, domain, domain)
 }
 
 func useLocalDomain(d string) bool {

internal/web/templates/layout.html

@@ -42,7 +42,7 @@
   <footer class="site-footer">
     <div class="container footer-inner">
       <p class="footer-brand">ShopNova</p>
-      <p class="footer-copy">© 2026 Интернет-магазин. Go + PostgreSQL + Caddy.</p>
+      <p class="footer-copy">© 2026 Интернет-магазин. Go + PostgreSQL + Traefik.</p>
     </div>
   </footer>
 </body>

traefik/dynamic/shop.yml

@@ -0,0 +1,16 @@
+# Локальная разработка (перезаписывается установщиком ./install.sh)
+http:
+  routers:
+    shop:
+      rule: "Host(`localhost`)"
+      entryPoints: [web]
+      middlewares: [gzip]
+      service: shop
+  middlewares:
+    gzip:
+      compress: {}
+  services:
+    shop:
+      loadBalancer:
+        servers:
+          - url: "http://app:8080"

traefik/dynamic/shop.yml.example

@@ -0,0 +1,16 @@
+# Пример — установщик создаёт shop.yml автоматически
+http:
+  routers:
+    shop:
+      rule: "Host(`localhost`)"
+      entryPoints: [web]
+      middlewares: [gzip]
+      service: shop
+  middlewares:
+    gzip:
+      compress: {}
+  services:
+    shop:
+      loadBalancer:
+        servers:
+          - url: "http://app:8080"