History

mwiegand 67b5521eb6 feat(l4d2-web): periodic state poller refreshes Server.actual_state A background thread spawned alongside the job workers polls every server's status every STATE_POLLER_INTERVAL_SECONDS (default 30) and writes the result via the existing refresh_server_actual_state path. Servers with in-flight jobs (queued/running/cancelling) are skipped to avoid racing the post-job refresh. Catches reboot drift, OOM kills, manual systemctl operations, and any other out-of-band state change. Spec: docs/superpowers/specs/2026-05-09-l4d2-server-lifecycle-reboot-and-drift-design.md Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-09 12:31:28 +02:00
..
alembic	feat(l4d2-web): per-overlay server.cfg aliases — expose checkbox + auto-exec	2026-05-09 01:26:31 +02:00
routes	feat(l4d2-web): server file tree — enable download symmetric with overlay tree	2026-05-09 01:40:04 +02:00
services	feat(l4d2-web): periodic state poller refreshes Server.actual_state	2026-05-09 12:31:28 +02:00
static	feat(l4d2-web): server + overlay detail — live-refresh via HTMX, restructured	2026-05-09 01:27:30 +02:00
templates	feat(l4d2-web): server file tree — enable download symmetric with overlay tree	2026-05-09 01:40:04 +02:00
tests	feat(l4d2-web): periodic state poller refreshes Server.actual_state	2026-05-09 12:31:28 +02:00
__init__.py	chore(l4d2): flatten component layout	2026-05-05 23:47:06 +02:00
alembic.ini	chore(l4d2): flatten component layout	2026-05-05 23:47:06 +02:00
app.py	feat(l4d2-web): periodic state poller refreshes Server.actual_state	2026-05-09 12:31:28 +02:00
auth.py	fix(l4d2-web): reject encoded unsafe redirects	2026-05-06 13:24:04 +02:00
cli.py	feat(l4d2-web): seed example script overlays from examples/script-overlays/	2026-05-08 18:41:08 +02:00
config.py	feat(l4d2-web): periodic state poller refreshes Server.actual_state	2026-05-09 12:31:28 +02:00
db.py	feat(deploy): add production-like test deployment	2026-05-06 19:30:10 +02:00
models.py	feat(l4d2-web): per-overlay server.cfg aliases — expose checkbox + auto-exec	2026-05-09 01:26:31 +02:00
pyproject.toml	refactor(l4d2-web): drop global-overlays subsystem in favor of script type	2026-05-08 15:43:41 +02:00
README.md	feat(deploy): add production-like test deployment	2026-05-06 19:30:10 +02:00

README.md

l4d2-web-app

Flask web app for managing L4D2 servers through user-private blueprints.

Key v1 behaviors

Local username/password login; no public signup
Admin-managed overlay catalog
Private blueprints per user
Server creation from blueprints (live-linked; no per-server blueprint overrides)
Async job model with persisted command logs in job_logs
Desired vs actual state model
Live logs for jobs and servers via SSE endpoints
Host operations go through l4d2ctl via a local host command runner, not direct l4d2host imports

Frontend constraints

Server-rendered templates (Jinja)
Vendored HTMX (static/vendor/htmx.min.js)
Custom CSS only
Tokenized, consistent link and accent colors

Development

python3 -m venv .venv
.venv/bin/pip install -e .
.venv/bin/pytest tests -q

Configuration

The web app reads these settings from the environment:

DATABASE_URL: SQLAlchemy database URL, for example sqlite:////var/lib/left4me/left4me.db.
SECRET_KEY: Flask secret key used for sessions and CSRF-sensitive state.
JOB_WORKER_THREADS: number of background job worker threads.

In the systemd deployment, environment is loaded from /etc/left4me/host.env and /etc/left4me/web.env.

Admin Bootstrap

Create the first admin account with the Flask CLI. Provide the password through LEFT4ME_ADMIN_PASSWORD:

LEFT4ME_ADMIN_PASSWORD='change-me' flask create-user <username> --admin