README wording

README.md

@@ -2,7 +2,7 @@
 
 Copier template for a Python backend, either as a `backend/` part next to other parts or alone at the root of the project (`layout`): a uv project with one Docker image and one `python -m <module>` entrypoint per service (`api`, `bot`, `userbot`, `worker`, `scheduler`), pydantic-settings, rich logging, optional Dishka, MongoDB or PostgreSQL, Redis, taskiq (in-memory, Redis or PostgreSQL broker), CryptoPay, pydantic-ai and a DynamicConfig stored in the database.
 
-Ships `backend/docker-compose.yml` with root-relative paths, `docker-compose.local.yml` (published ports) and `docker-compose.prod.yml` (the `caddy` network), a `Makefile` with `fmt`, `check`, `build` and service-specific targets, `.env.example` and `CLAUDE.md`. Applied on top of the `infra` template, `layout: parts` or `layout: single` respectively.
+Ships `backend/docker-compose.yml` with root-relative paths and profiles per service, `docker-compose.override.yml.example` (published ports and the `caddy` network aliases, copied by `make env`), a `Makefile` with `fmt`, `check`, `build` and service-specific targets, `.env.example` and `CLAUDE.md`. Applied on top of the `infra` template, `layout: parts` or `layout: single` respectively.
 
 ```sh
 copier copy --trust -d project_name="My Thing" <this-repo> <dest>

template/{{ part_dir }}/.env.example.jinja

@@ -1,27 +1,14 @@
-{% if layout == 'root' %}COMPOSE_FILE=docker-compose.yml:docker-compose.local.yml
+{%- set groups = [] -%}
-{% endif %}RUN_ENVIRONMENT=dev
+{%- if layout == 'root' %}{% set _ = groups.append(["COMPOSE_PROFILES=" ~ ("external," if database != 'none' or use_redis else "") ~ "services"]) %}{% endif -%}
-LOG__LEVEL=INFO
+{%- set _ = groups.append(["RUN_ENVIRONMENT=prod", "TZ=UTC"]) -%}
-LOG__LEVEL_EXTERNAL=WARNING
+{%- set _ = groups.append(["LOG__LEVEL=INFO", "LOG__LEVEL_EXTERNAL=WARNING", "LOG__SHOW_TIME=false", "LOG__CONSOLE_WIDTH=150"]) -%}
-LOG__SHOW_TIME=false
+{%- if database == 'mongo' %}{% set _ = groups.append(["DB__HOST=mongodb", "DB__PORT=27017", "DB__USER=" ~ project_slug, "DB__PASSWORD=" ~ project_slug, "DB__DB_NAME=" ~ project_slug]) %}{% endif -%}
-LOG__CONSOLE_WIDTH=150
+{%- if database == 'postgres' %}{% set _ = groups.append(["DB__HOST=postgres", "DB__PORT=5432", "DB__USER=" ~ project_slug, "DB__PASSWORD=" ~ project_slug, "DB__DB_NAME=" ~ project_slug]) %}{% endif -%}
-{% if database == 'mongo' %}DB__HOST=mongodb
+{%- if use_redis %}{% set _ = groups.append(["REDIS__HOST=redis", "REDIS__PORT=6379", "REDIS__CACHE_TTL=300"]) %}{% endif -%}
-DB__PORT=27017
+{%- if 'api' in backend_services %}{% set _ = groups.append(["API__HOST=0.0.0.0", "API__PORT=8080", "API__WORKERS=1", "API__DOCS=false"]) %}{% endif -%}
-DB__USER={{ project_slug }}
+{%- if 'aiogram_bot' in backend_services %}{% set _ = groups.append(["BOT__TOKEN="]) %}{% endif -%}
-DB__PASSWORD={{ project_slug }}
+{%- if include_payments %}{% set _ = groups.append(["CRYPTO_PAY__TOKEN="]) %}{% endif -%}
-DB__DB_NAME={{ project_slug }}
+{%- if use_llm %}{% set _ = groups.append(["LLM__MODEL=google-gla:gemini-2.5-flash", "LLM__GEMINI_API_KEY="]) %}{% endif -%}
-{% endif %}{% if database == 'postgres' %}DB__HOST=postgres
+{% for group in groups %}{{ group | join("\n") }}
-DB__PORT=5432
+{% if not loop.last %}
-DB__USER={{ project_slug }}
+{% endif %}{% endfor %}
-DB__PASSWORD={{ project_slug }}
-DB__DB_NAME={{ project_slug }}
-{% endif %}{% if use_redis %}REDIS__HOST=redis
-REDIS__PORT=6379
-REDIS__CACHE_TTL=300
-{% endif %}{% if 'api' in backend_services %}API__HOST=0.0.0.0
-API__PORT=8080
-API__WORKERS=1
-{% endif %}{% if 'aiogram_bot' in backend_services %}BOT__TOKEN=
-{% endif %}{% if include_payments %}CRYPTO_PAY__TOKEN=
-{% endif %}{% if use_llm %}LLM__MODEL=google-gla:gemini-2.5-flash
-LLM__GEMINI_API_KEY=
-{% endif %}

template/{{ part_dir }}/Dockerfile.jinja

@@ -10,6 +10,8 @@ FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim
 RUN apt-get update && apt-get install -y build-essential && rm -rf /var/lib/apt/lists/*
 {%- else -%}
 FROM ghcr.io/astral-sh/uv:python3.13-alpine
+
+RUN apk add --no-cache tzdata
 {%- endif %}
 
 WORKDIR /app

template/{{ part_dir }}/Makefile.jinja

@@ -6,10 +6,8 @@
 {%- if 'scheduler' in backend_services and 'taskiq_worker' not in backend_services %}{% set _ = svc_modules.append("scheduler") %}{% endif -%}
 {%- set has_script = dynamic_config and svc_modules -%}
 COMPOSE := docker compose{% if layout == 'part' %} --project-directory ..{% endif %}
-{% if layout == 'root' %}SERVICES := $(COMPOSE) --profile services
+
-EXTERNAL := $(COMPOSE) --profile external
+.PHONY: {% if layout == 'root' %}env recreate rebuild restart logs down {% endif %}fmt check build{% if database == 'postgres' %} migrate revision{% endif %}{% if has_script %} script{% endif %}{% if 'kurigram_userbot' in backend_services %} session{% endif %}
-{% endif %}
-.PHONY: {% if layout == 'root' %}env external recreate rebuild restart logs down {% endif %}fmt check build{% if database == 'postgres' %} migrate revision{% endif %}{% if has_script %} script{% endif %}{% if 'kurigram_userbot' in backend_services %} session{% endif %}
 
 fmt:
 	uv run ruff format
@@ -25,23 +23,22 @@ build:
 {% if layout == 'root' %}
 env:
 	@test -f .env || cp .env.example .env
+	@test -f docker-compose.override.yml || cp docker-compose.override.yml.example docker-compose.override.yml
 
-external:
+recreate:
-	$(EXTERNAL) up -d
+	$(COMPOSE) up -d --force-recreate
 
-recreate: external
+rebuild: build
-	$(SERVICES) up -d --force-recreate
+	$(COMPOSE) up -d
-
-rebuild: build recreate
 
 restart:
-	$(SERVICES) restart
+	$(COMPOSE) restart
 
 logs:
-	$(SERVICES) logs -f --tail=100
+	$(COMPOSE) logs -f --tail=100
 
 down:
-	$(EXTERNAL) --profile services down
+	$(COMPOSE) down
 {% endif %}{% if database == 'postgres' %}
 migrate:
 	$(COMPOSE) --profile external run --rm migrator

template/{{ part_dir }}/docker-compose.local.yml.jinja

@@ -1,15 +0,0 @@
-{%- set has_ports = 'api' in backend_services or database != 'none' or use_redis -%}
-services:{% if not has_ports %} {}{% endif %}
-{% if 'api' in backend_services %}  api:
-    ports:
-      - "127.0.0.1:${API__PORT:-8080}:8080"
-{% endif %}{% if database == 'mongo' %}  mongodb:
-    ports:
-      - "127.0.0.1:${DB__PORT:-27017}:${DB__PORT:-27017}"
-{% endif %}{% if database == 'postgres' %}  postgres:
-    ports:
-      - "127.0.0.1:${DB__PORT:-5432}:5432"
-{% endif %}{% if use_redis %}  redis:
-    ports:
-      - "127.0.0.1:${REDIS__PORT:-6379}:6379"
-{% endif %}

template/{{ part_dir }}/docker-compose.override.yml.example.jinja

@@ -0,0 +1,28 @@
+{%- set dash = project_slug | replace('_', '-') -%}
+{%- set entries = [] -%}
+{%- if 'api' in backend_services %}{% set _ = entries.append('api') %}{% endif -%}
+{%- if database == 'mongo' %}{% set _ = entries.append('mongodb') %}{% endif -%}
+{%- if database == 'postgres' %}{% set _ = entries.append('postgres') %}{% endif -%}
+{%- if use_redis %}{% set _ = entries.append('redis') %}{% endif -%}
+services:{% if not entries %} {}{% endif %}
+{% for entry in entries %}{% if entry == 'api' %}  api:
+    networks:
+      default: {}
+      caddy:
+        aliases:
+          - {{ dash }}-api
+{% elif entry == 'mongodb' %}  mongodb:
+    ports:
+      - "127.0.0.1:${DB__PORT:-27017}:${DB__PORT:-27017}"
+{% elif entry == 'postgres' %}  postgres:
+    ports:
+      - "127.0.0.1:${DB__PORT:-5432}:5432"
+{% elif entry == 'redis' %}  redis:
+    ports:
+      - "127.0.0.1:${REDIS__PORT:-6379}:6379"
+{% endif %}{% if not loop.last %}
+{% endif %}{% endfor %}{% if 'api' in backend_services %}
+networks:
+  caddy:
+    external: true
+{% endif %}

template/{{ part_dir }}/docker-compose.prod.yml.jinja

@@ -1,15 +0,0 @@
-{%- set dash = project_slug | replace('_', '-') -%}
-{% if 'api' in backend_services -%}
-services:
-  api:
-    networks:
-      caddy:
-        aliases:
-          - {{ dash }}-api
-
-networks:
-  caddy:
-    external: true
-{%- else -%}
-services: {}
-{%- endif %}

template/{{ part_dir }}/docker-compose.yml.jinja

@@ -2,6 +2,10 @@
 {%- set svc_networks = [] -%}
 {%- if database != 'none' %}{% set _ = svc_networks.append('database') %}{% endif -%}
 {%- if use_redis %}{% set _ = svc_networks.append('redis') %}{% endif -%}
+{%- set external_services = [] -%}
+{%- if database == 'mongo' %}{% set _ = external_services.append('mongodb') %}{% endif -%}
+{%- if database == 'postgres' %}{% set _ = external_services.append('postgres') %}{% endif -%}
+{%- if use_redis %}{% set _ = external_services.append('redis') %}{% endif -%}
 {%- set app_services = [] -%}
 {%- if 'api' in backend_services %}{% set _ = app_services.append({'name': 'api', 'command': '[api]'}) %}{% endif -%}
 {%- if 'aiogram_bot' in backend_services %}{% set _ = app_services.append({'name': 'bot', 'command': '[bot]'}) %}{% endif -%}
@@ -20,14 +24,20 @@
         required: false
 {% endif %}    environment:
       RUN_ENVIRONMENT: prod
+      TZ: ${TZ:-UTC}
     volumes:
       - ./{{ prefix }}src:/app/src
 {% if has_scripts %}      - ./{{ prefix }}scripts:/app/scripts
 {% endif %}{% if name == 'userbot' %}      - ./{{ prefix }}sessions:/app/sessions
 {% endif %}{% if name == 'api' and serve_spa %}      - ./frontend/build:/app/static:ro
 {% endif %}    command: {{ command }}
-{% if svc_networks %}    networks:
+{% if external_services %}    depends_on:
-{% for net in svc_networks %}      {{ net }}:
+{% for ext in external_services %}      {{ ext }}:
+        condition: service_healthy
+        required: false
+{% endfor %}{% endif %}{% if svc_networks %}    networks:
+{% if name == 'api' %}      default:
+{% endif %}{% for net in svc_networks %}      {{ net }}:
 {% endfor %}{% endif %}{% endmacro -%}
 services:
 {% for svc in app_services %}{{ backend_service(svc.name, svc.command) }}{% if not loop.last %}
@@ -43,6 +53,11 @@ services:
     command: mongod --port ${DB__PORT:-27017}
     volumes:
       - database:/data/db
+    healthcheck:
+      test: ["CMD", "mongosh", "--quiet", "--port", "${DB__PORT:-27017}", "--eval", "db.adminCommand('ping')"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
     networks:
       database:
         aliases:
@@ -98,6 +113,11 @@ services:
     profiles: [redis, external]
     restart: unless-stopped
     command: ["redis-server", "--appendonly", "yes"]
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
     volumes:
       - redis_data:/data
     networks:

template/{{ part_dir }}/src/utils/env.py.jinja

@@ -69,6 +69,7 @@ class ApiSettings(BaseSettings):
     host: str = "0.0.0.0"  # noqa: S104
     port: int = 8080
     workers: int = 1
+    docs: bool = False
 {%- if serve_spa %}
     static_dir: str = "static"
 {%- endif %}
@@ -110,7 +111,10 @@ class Settings(BaseSettings):
 {%- endif %}
 
     model_config = SettingsConfigDict(
-        case_sensitive=False, env_file=".env", env_nested_delimiter="__", extra="ignore"
+        case_sensitive=False,
+        env_file={% if layout == 'part' %}("../.env", ".env"){% else %}".env"{% endif %},
+        env_nested_delimiter="__",
+        extra="ignore",
     )
 
 

template/{{ part_dir }}/src/{% if 'api' in backend_services %}api{% endif %}/__main__.py.jinja

@@ -5,7 +5,11 @@ from utils.env import env
 
 def main() -> None:
     uvicorn.run(
-        "api.app:app", host=env.api.host, port=env.api.port, workers=env.api.workers
+        "api.app:app",
+        host=env.api.host,
+        port=env.api.port,
+        workers=env.api.workers,
+        forwarded_allow_ips="*",
     )
 
 

template/{{ part_dir }}/src/{% if 'api' in backend_services %}api{% endif %}/app.py.jinja

@@ -10,8 +10,8 @@ from fastapi.middleware.cors import CORSMiddleware
 from api import routers
 {% if use_dishka %}from dependencies.container import container
 {% endif %}{% if database != 'none' %}from utils.db import init_db
-{% endif %}{% if serve_spa %}from utils.env import env
+{% endif %}from utils.env import env
-{% endif %}from utils.logging import setup_logging
+from utils.logging import setup_logging
 {% if serve_spa %}
 IMMUTABLE_HEADERS = {"Cache-Control": "public, max-age=31536000, immutable"}
 NO_CACHE_HEADERS = {"Cache-Control": "no-cache"}
@@ -29,7 +29,11 @@ async def lifespan(app_: FastAPI) -> AsyncGenerator[None]:
     {%- endif %}
 
 
-app = FastAPI(title="{{ project_name }} API", lifespan=lifespan)
+app = FastAPI(
+    title="{{ project_name }} API",
+    lifespan=lifespan,
+    openapi_url="/openapi.json" if env.api.docs else None,
+)
 
 app.add_middleware(
     CORSMiddleware, allow_origins=["*"], allow_methods=["*"], allow_headers=["*"]

template/{{ part_dir }}/src/{% if 'kurigram_userbot' in backend_services %}userbot{% endif %}/runner.py.jinja

@@ -1,5 +1,6 @@
 import asyncio
 import contextlib
+import signal
 
 import anyio
 import uvloop
@@ -11,8 +12,15 @@ import uvloop
 
 setup_logging()
 
+SCAN_INTERVAL = 10
+
 
 async def runner() -> None:
+    stop = asyncio.Event()
+    loop = asyncio.get_running_loop()
+    for sig in (signal.SIGINT, signal.SIGTERM):
+        loop.add_signal_handler(sig, stop.set)
+
 {% if database != 'none' %}    await init_db()
 
 {% endif %}    sessions_dir = anyio.Path("sessions")
@@ -22,7 +30,7 @@ async def runner() -> None:
     clients: dict[int, PyroClient] = {}
 
     try:
-        while True:
+        while not stop.is_set():
             current = {path.name async for path in sessions_dir.glob("*.session")}
 
             for session_file in current - started:
@@ -43,7 +51,8 @@ async def runner() -> None:
                 if me:
                     clients[me.id] = client
 
-            await asyncio.sleep(10)
+            with contextlib.suppress(TimeoutError):
+                await asyncio.wait_for(stop.wait(), SCAN_INTERVAL)
     finally:
         for client in clients.values():
             with contextlib.suppress(Exception):
@@ -55,8 +64,5 @@ def main() -> None:
     uvloop.install()
 
     logger.info("Starting...")
-
-    with contextlib.suppress(KeyboardInterrupt):
     asyncio.run(runner())
-
     logger.info("[red]Stopped.[/]")

template/{{ part_dir }}/src/{% if 'scheduler' in backend_services and 'taskiq_worker' not in backend_services %}scheduler{% endif %}/__init__.py.jinja

@@ -1,5 +1,5 @@
 import asyncio
-import contextlib
+import signal
 
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from apscheduler.triggers.interval import IntervalTrigger
@@ -15,6 +15,10 @@ async def example_job() -> None:
 
 
 async def runner() -> None:
+    stop = asyncio.Event()
+    loop = asyncio.get_running_loop()
+    for sig in (signal.SIGINT, signal.SIGTERM):
+        loop.add_signal_handler(sig, stop.set)
     {%- if database != 'none' %}
     await init_db()
     {%- endif %}
@@ -27,14 +31,13 @@ async def runner() -> None:
     scheduler.start()
     logger.info("Scheduler started")
 
-    with contextlib.suppress(asyncio.CancelledError):
+    await stop.wait()
-        await asyncio.Event().wait()
+    scheduler.shutdown()
 
 
 def main() -> None:
     setup_logging()
 
     logger.info("Starting...")
-    with contextlib.suppress(KeyboardInterrupt):
     asyncio.run(runner())
     logger.info("[red]Stopped.[/]")

template/{{ part_dir }}/{% if layout == 'root' %}README.md{% endif %}.jinja

@@ -0,0 +1,18 @@
+{%- set targets = [] -%}
+{%- if database == 'postgres' %}{% set _ = targets.append("`make migrate`, `make revision m=\"message\"`") %}{% endif -%}
+{%- if dynamic_config and backend_services %}{% set _ = targets.append("`make script name`") %}{% endif -%}
+{%- if 'kurigram_userbot' in backend_services %}{% set _ = targets.append("`make session`") %}{% endif -%}
+# {{ project_name }}
+{% if project_description and project_description != project_name %}
+{{ project_description }}
+{% endif %}
+Runs in Docker, locally the same way as in production. `COMPOSE_PROFILES` in `.env` selects the services that run on this machine. `docker-compose.override.yml` holds what differs between machines: published ports and the aliases on the external `caddy` network.
+
+```sh
+make env
+make recreate
+```
+
+`make env` creates `.env` and `docker-compose.override.yml` from their examples. `make recreate` starts the selected profiles, `make rebuild` builds the image first, `make logs`, `make restart` and `make down` do what they say.
+
+`make fmt` formats, `make check` runs ruff and ty.{% if targets %} Also {{ targets | join(", ") }}.{% endif %}