Files
FabledSteward/fablednetmon/app.py
T
2026-03-18 20:33:36 -04:00

229 lines
8.7 KiB
Python

# fablednetmon/app.py
from __future__ import annotations
import asyncio
from pathlib import Path
from quart import Quart
from .config import load_bootstrap
from .database import init_db
def create_app(
config_path: Path | str | None = None,
testing: bool = False,
) -> Quart:
app = Quart(__name__, template_folder="templates")
# ── 1. Bootstrap: db_url + secret_key only ────────────────────────────────
if not testing:
bootstrap = load_bootstrap(config_path)
else:
bootstrap = {
"database_url": "postgresql+asyncpg://test/test",
"secret_key": "test-secret-key",
"plugin_dir": "plugins",
}
app.config.update(
SECRET_KEY=bootstrap["secret_key"],
DATABASE_URL=bootstrap["database_url"],
PLUGIN_DIR=bootstrap["plugin_dir"],
TESTING=testing,
)
# ── 2. Init DB engine ──────────────────────────────────────────────────────
if not testing:
init_db(app)
else:
from unittest.mock import MagicMock
app.db_sessionmaker = MagicMock()
# ── 3. Core migrations only (creates app_settings table) ──────────────────
if not testing:
from .core.migration_runner import run_core_migrations
run_core_migrations(app.config["DATABASE_URL"])
# ── 4. Load all settings from DB → populate app.config ────────────────────
if not testing:
from .core.settings import (
load_settings_sync, to_smtp_cfg, to_webhook_cfg,
to_ansible_cfg, to_plugins_cfg,
)
_settings = load_settings_sync(app.config["DATABASE_URL"])
app.config.update(
SESSION_LIFETIME_HOURS=_settings.get("session.lifetime_hours", 8),
DATA_RETENTION_DAYS=_settings.get("data.retention_days", 90),
MONITORS_POLL_INTERVAL=_settings.get("monitors.poll_interval_seconds", 60),
SMTP=to_smtp_cfg(_settings),
WEBHOOK=to_webhook_cfg(_settings),
ANSIBLE=to_ansible_cfg(_settings),
PLUGINS=to_plugins_cfg(_settings),
)
else:
app.config.update(
SESSION_LIFETIME_HOURS=8,
DATA_RETENTION_DAYS=90,
MONITORS_POLL_INTERVAL=60,
SMTP={},
WEBHOOK={},
ANSIBLE={},
PLUGINS={},
)
# ── 5. Plugin migrations (depends on knowing which plugins are enabled) ────
if not testing:
from .core.migration_runner import run_plugin_migrations, get_plugin_migration_dirs
_plugin_dir = Path(app.config["PLUGIN_DIR"]).resolve()
_plugin_migration_dirs = get_plugin_migration_dirs(
_plugin_dir, app.config["PLUGINS"]
)
run_plugin_migrations(app.config["DATABASE_URL"], _plugin_migration_dirs)
# ── 6. Alert pipeline ──────────────────────────────────────────────────────
from .core.alerts import init_alerts
init_alerts(app)
# ── 7. Register core blueprints ────────────────────────────────────────────
from .auth.routes import auth_bp
from .dashboard.routes import dashboard_bp
from .hosts.routes import hosts_bp
from .alerts.routes import alerts_bp
from .ansible.routes import ansible_bp
from .settings.routes import settings_bp
app.register_blueprint(auth_bp)
app.register_blueprint(dashboard_bp)
app.register_blueprint(hosts_bp)
app.register_blueprint(alerts_bp)
app.register_blueprint(ansible_bp)
app.register_blueprint(settings_bp)
# ── 8. Build task registry ─────────────────────────────────────────────────
app._task_registry = []
if not testing:
_register_core_tasks(app)
# ── 9. Load plugins ────────────────────────────────────────────────────────
if not testing:
from .core.plugin_manager import load_plugins
load_plugins(app)
# ── 10. Health check ───────────────────────────────────────────────────────
@app.get("/health")
async def health():
return {"status": "ok"}
# ── 11. Startup hook ───────────────────────────────────────────────────────
@app.before_serving
async def startup():
if not testing:
await _mark_interrupted_runs(app)
asyncio.create_task(_run_scheduler(app))
return app
def _register_core_tasks(app: Quart) -> None:
from .core.scheduler import ScheduledTask
poll_interval = app.config.get("MONITORS_POLL_INTERVAL", 60)
cleanup_interval = 3600 # hourly
async def run_ping_monitors():
from sqlalchemy import select
from .models.hosts import Host
from .monitors.ping import ping_check
async with app.db_sessionmaker() as session:
async with session.begin():
result = await session.execute(
select(Host).where(Host.ping_enabled.is_(True))
)
for host in result.scalars().all():
try:
await ping_check(host, session)
except Exception:
app.logger.exception(f"Ping check failed for host {host.name!r}")
async def run_dns_monitors():
from sqlalchemy import select
from .models.hosts import Host
from .monitors.dns import dns_check
async with app.db_sessionmaker() as session:
async with session.begin():
result = await session.execute(
select(Host).where(Host.dns_enabled.is_(True))
)
for host in result.scalars().all():
try:
await dns_check(host, session)
except Exception:
app.logger.exception(f"DNS check failed for host {host.name!r}")
async def run_cleanup():
from .core.cleanup import run_cleanup as _cleanup
await _cleanup(app)
app._task_registry.extend([
ScheduledTask(
name="ping_monitor",
coro_factory=run_ping_monitors,
interval_seconds=poll_interval,
run_on_startup=True,
),
ScheduledTask(
name="dns_monitor",
coro_factory=run_dns_monitors,
interval_seconds=poll_interval,
run_on_startup=True,
),
ScheduledTask(
name="data_cleanup",
coro_factory=run_cleanup,
interval_seconds=cleanup_interval,
run_on_startup=False,
),
])
# Register git-pull tasks for each ansible git source
ansible_cfg = app.config.get("ANSIBLE", {})
from .ansible.sources import get_sources
for source in get_sources(ansible_cfg):
if source["type"] != "git":
continue
_source = source
async def run_git_pull(src=_source):
from .ansible.sources import git_pull
await git_pull(src)
app._task_registry.append(
ScheduledTask(
name=f"ansible_git_pull_{_source['name']}",
coro_factory=run_git_pull,
interval_seconds=_source["pull_interval_seconds"],
run_on_startup=True,
)
)
async def _mark_interrupted_runs(app: Quart) -> None:
from sqlalchemy import update
from .models.ansible import AnsibleRun, AnsibleRunStatus
from datetime import datetime, timezone
async with app.db_sessionmaker() as session:
async with session.begin():
await session.execute(
update(AnsibleRun)
.where(AnsibleRun.status == AnsibleRunStatus.running)
.values(
status=AnsibleRunStatus.interrupted,
finished_at=datetime.now(timezone.utc),
)
)
async def _run_scheduler(app: Quart) -> None:
from .core.scheduler import start_scheduler
await start_scheduler(app._task_registry)