Files
sandbox/.env.example
pptx704 2c66959b92 Add host registration, heartbeat, and multi-host management
Implements the full host ↔ control plane connection flow:

- Host CRUD endpoints (POST/GET/DELETE /v1/hosts) with role-based access:
  regular hosts admin-only, BYOC hosts for admins and team owners
- One-time registration token flow: admin creates host → gets token (1hr TTL
  in Redis + Postgres audit trail) → host agent registers with specs → gets
  long-lived JWT (1yr)
- Host agent registration client with automatic spec detection (arch, CPU,
  memory, disk) and token persistence to disk
- Periodic heartbeat (30s) via POST /v1/hosts/{id}/heartbeat with X-Host-Token
  auth and host ID cross-check
- Token regeneration endpoint (POST /v1/hosts/{id}/token) for retry after
  failed registration
- Tag management (add/remove/list) with team-scoped access control
- Host JWT with typ:"host" claim, cross-use prevention in both VerifyJWT and
  VerifyHostJWT
- requireHostToken middleware for host agent authentication
- DB-level race protection: RegisterHost uses AND status='pending' with
  rows-affected check; Redis GetDel for atomic token consume
- Migration for future mTLS support (cert_fingerprint, mtls_enabled columns)
- Host agent flags: --register (one-time token), --address (required ip:port)
- serviceErrToHTTP extended with "forbidden" → 403 mapping
- OpenAPI spec, .env.example, and README updated
2026-03-17 05:51:28 +06:00

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# Database
DATABASE_URL=postgres://wrenn:wrenn@localhost:5432/wrenn?sslmode=disable
# Redis
REDIS_URL=redis://localhost:6379/0
# Control Plane
CP_LISTEN_ADDR=:8000
CP_HOST_AGENT_ADDR=localhost:50051
# Host Agent
AGENT_LISTEN_ADDR=:50051
AGENT_KERNEL_PATH=/var/lib/wrenn/kernels/vmlinux
AGENT_IMAGES_PATH=/var/lib/wrenn/images
AGENT_SANDBOXES_PATH=/var/lib/wrenn/sandboxes
AGENT_SNAPSHOTS_PATH=/var/lib/wrenn/snapshots
AGENT_HOST_INTERFACE=eth0
AGENT_CP_URL=http://localhost:8000
AGENT_TOKEN_FILE=/var/lib/wrenn/host-token
# Lago (billing — external service)
LAGO_API_URL=http://localhost:3000
LAGO_API_KEY=
# Object Storage (hibernate snapshots — Hetzner Object Storage, S3-compatible)
S3_BUCKET=wrenn-snapshots
S3_REGION=fsn1
S3_ENDPOINT=https://fsn1.your-objectstorage.com
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
# Auth
JWT_SECRET=
# OAuth
OAUTH_GITHUB_CLIENT_ID=
OAUTH_GITHUB_CLIENT_SECRET=
OAUTH_REDIRECT_URL=https://app.wrenn.dev
CP_PUBLIC_URL=https://api.wrenn.dev