No description
Each linked overlay gets a checkbox on the blueprint detail page that opts
its server.cfg in as exec server_overlay_<id>. The web app builds the
spec with {path, alias} per overlay and prepends exec server_overlay_<id>
lines to the blueprint config in lowest-overlay-first order. The host
stages those copies in the overlayfs upper layer before mounting (avoids
copy-up writes against a sandbox-uid file). A live preview block above the
Config textarea shows what gets auto-executed.
Schema:
- alembic 0007: BlueprintOverlay.expose_server_cfg BOOLEAN
Spec contract:
- l4d2host OverlayRef(path, alias?). load_spec accepts both bare-string
and {path, alias} entries.
Side effects folded in (same file in l4d2_facade):
- start_server auto-initializes; the manual Initialize step is no longer
needed before Start.
- initialize_server no longer runs blueprint builders — builds happen on
overlay save, not on every server Start.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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|---|---|---|
| deploy | ||
| docs/superpowers | ||
| examples/script-overlays | ||
| l4d2host | ||
| l4d2web | ||
| .envrc | ||
| .gitignore | ||
| AGENTS.md | ||
| README.md | ||
left4me
left4me is a local L4D2 server management platform with two planned components:
l4d2host+l4d2ctl(host library + CLI)l4d2-web-app(Flask web app for users, blueprints, servers, jobs, and logs)
Status
Implementation plans remain the source of truth for architecture and task sequencing:
docs/superpowers/plans/2026-04-22-l4d2-host-lib-v1.mddocs/superpowers/plans/2026-04-23-l4d2-web-app-v1.md
Locked v1 Decisions
- Naming is strictly
l4d2(notl4d). - Host library and web app are separate components.
- Host CLI write commands are fixed to:
installinitialize <name> -f <spec.yaml>start <name>stop <name>delete <name>
- Host CLI read commands are available for the web/host boundary:
status <name> --jsonlogs <name> --lines <n> --follow/--no-follow
- The web app calls host operations through
l4d2ctl, not directl4d2hostimports. - Deployment uses
/var/lib/left4mefor runtime state,/opt/left4mefor repository contents and the virtualenv,/etc/left4mefor environment files, and global units under/usr/local/lib/systemd/system. - Overlay handling is directory-based; the web app populates each overlay (workshop downloads, managed-global refresh).
- No lock manager, no rollback, no preflight checks in host library.
- CLI propagates subprocess failures via stderr and return code.
deleteon missing instance is no-op success.- Blueprint model (web app):
- user-private in v1
- servers are live-linked to blueprint
- no per-server overrides
- delete blueprint blocked when linked servers exist
- blueprint changes apply on next action
- server can reassign blueprint anytime
Planned Repository Layout
l4d2host/l4d2web/deploy/docs/superpowers/plans/
Deployment
See deploy/README.md for the Linux test deployment contract, including the runtime user, target filesystem layout, systemd units, privileged helpers, sudoers rules, admin bootstrap, and overlay reference rules.
Local development
This repo uses direnv to auto-activate a Python 3.13 venv on cd (matching the Debian Trixie production target). With direnv installed and hooked into your shell:
direnv allowonce per fresh checkout (and after any.envrcchange).cdout and back in —.direnv/python-3.13/is created and put onPATH.pip install -e ./l4d2host -e ./l4d2webto install both packages editable.pip install pytestto run the test suites (pytest tests/inside either subproject).
Tech Stack (planned)
- Python 3.12+
- Typer, PyYAML, pytest
- Flask, SQLAlchemy, Alembic
- HTMX (vendored locally), custom CSS, SSE
- systemd units, kernel overlayfs (mounted via the
left4me-overlayprivileged helper), steamcmd
Recommended Implementation Order
- Implement
l4d2hostplan first. - Implement
l4d2webplan second. - Keep tests green task-by-task (TDD flow from plans).
- Keep commits small and aligned with plan tasks.
Contributing Notes
- Follow plan task order unless explicitly re-planned.
- Keep contracts above unchanged unless the user asks to change them.
- Update plan docs when scope or behavior changes.