build: add docker-compose test stack with ephemeral postgres

Dockerfile

@@ -10,6 +10,7 @@ RUN --mount=type=cache,target=/root/.cache/uv \
 COPY src/ src/
 COPY alembic/ alembic/
 COPY alembic.ini .
+COPY README.md .
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --frozen --no-dev
 

Dockerfile.test

@@ -2,6 +2,7 @@ FROM ghcr.io/astral-sh/uv:python3.12-bookworm-slim
 
 WORKDIR /app
 ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy
+ENV PATH="/app/.venv/bin:$PATH"
 
 COPY pyproject.toml uv.lock ./
 RUN --mount=type=cache,target=/root/.cache/uv \
@@ -11,6 +12,7 @@ COPY src/ src/
 COPY tests/ tests/
 COPY alembic/ alembic/
 COPY alembic.ini .
+COPY README.md .
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --frozen
 

docker-compose.test.yml

@@ -0,0 +1,26 @@
+services:
+  postgres:
+    tmpfs: /var/lib/postgresql/data
+    ports: []
+    volumes: []
+
+  redis:
+    ports: []
+
+  test:
+    build:
+      context: .
+      dockerfile: Dockerfile.test
+    command: >
+      sh -c "alembic upgrade head &&
+             pytest tests/ -x -v --tb=short --timeout=30"
+    environment:
+      DB_URL: "postgresql+asyncpg://proxypool:proxypool@postgres:5432/proxypool"
+      REDIS_URL: "redis://redis:6379/1"
+      SECRET_KEY: "test-secret-key"
+      LOG_LEVEL: "WARNING"
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy

docker-compose.yml

@@ -40,8 +40,6 @@ services:
       POSTGRES_PASSWORD: proxypool
     ports:
       - "5432:5432"
-    volumes:
-      - pg_data:/var/lib/postgresql/data
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U proxypool"]
       interval: 2s
@@ -56,7 +54,4 @@ services:
       test: ["CMD", "redis-cli", "ping"]
       interval: 2s
       timeout: 5s
-      retries: 10
-
-volumes:
-  pg_data:
+      retries: 10

tests/conftest.py

@@ -17,11 +17,19 @@ def event_loop():
 
 @pytest.fixture(scope="session")
 def test_settings() -> Settings:
+    import os
     return Settings(
-        secret_key="test-secret",
-        log_level="DEBUG",
-        db=DatabaseSettings(url="postgresql+asyncpg://proxypool:proxypool@localhost:5432/proxypool"),
-        redis=RedisSettings(url="redis://localhost:6379"),
+        secret_key=os.environ.get("SECRET_KEY", "test-secret"),
+        log_level=os.environ.get("LOG_LEVEL", "DEBUG"),
+        db=DatabaseSettings(
+            url=os.environ.get(
+                "DB_URL",
+                "postgresql+asyncpg://proxypool:proxypool@localhost:5432/proxypool",
+            ),
+        ),
+        redis=RedisSettings(
+            url=os.environ.get("REDIS_URL", "redis://localhost:6379/1"),
+        ),
     )