fix: normalize host runtime service endpoints

backend/app/config.py

@@ -1,8 +1,57 @@
-from pydantic_settings import BaseSettings
+import os
 from typing import Optional
+from urllib.parse import urlsplit, urlunsplit
+
+from pydantic import model_validator
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+_DOCKER_SERVICE_ALIASES = {"postgres", "redis", "minio"}
+
+
+def _is_running_in_container() -> bool:
+    if os.path.exists("/.dockerenv"):
+        return True
+    try:
+        with open("/proc/1/cgroup", "r", encoding="utf-8") as handle:
+            return "docker" in handle.read() or "containerd" in handle.read()
+    except OSError:
+        return False
+
+
+def _normalize_service_host(host: str) -> str:
+    if _is_running_in_container():
+        return host
+    return "localhost" if host in _DOCKER_SERVICE_ALIASES else host
+
+
+def _normalize_service_url(url: str) -> str:
+    parsed = urlsplit(url)
+    if not parsed.hostname:
+        return url
+
+    normalized_host = _normalize_service_host(parsed.hostname)
+    if normalized_host == parsed.hostname:
+        return url
+
+    netloc = normalized_host
+    if parsed.username:
+        auth = parsed.username
+        if parsed.password:
+            auth = f"{auth}:{parsed.password}"
+        netloc = f"{auth}@{netloc}"
+    if parsed.port:
+        netloc = f"{netloc}:{parsed.port}"
+    return urlunsplit((parsed.scheme, netloc, parsed.path, parsed.query, parsed.fragment))
 
 
 class Settings(BaseSettings):
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        case_sensitive=False,
+        extra="ignore",
+    )
+
     # Database
     postgres_db: str = "hartomat"
     postgres_user: str = "hartomat"
@@ -27,6 +76,12 @@ class Settings(BaseSettings):
     # Redis / Celery
     redis_url: str = "redis://localhost:6379/0"
 
+    @model_validator(mode="after")
+    def normalize_runtime_hosts(self) -> "Settings":
+        self.postgres_host = _normalize_service_host(self.postgres_host)
+        self.redis_url = _normalize_service_url(self.redis_url)
+        return self
+
     # JWT
     jwt_secret_key: str = "changeme"
     jwt_algorithm: str = "HS256"
@@ -42,9 +97,4 @@ class Settings(BaseSettings):
     upload_dir: str = "/app/uploads"
     max_upload_size_mb: int = 500
 
-    class Config:
-        env_file = ".env"
-        case_sensitive = False
-
-
 settings = Settings()