Introduces internal/layout package for centralized path construction,
migrates templates from name-based TEXT primary keys to UUID PKs with
team-scoped directories (WRENN_DIR/images/teams/{team_id}/{template_id}).
The built-in minimal template uses sentinel zero UUIDs. Proto messages
carry team_id + template_id alongside deprecated template name field.
Team deletion now cleans up template files across all hosts.
Snapshot race fix:
- Pre-mark sandbox as "paused" in DB before issuing CreateSnapshot and
PauseSandbox RPCs, preventing the reconciler from marking it "stopped"
during the flatten window when the sandbox is gone from the host
agent's in-memory map but DB still says "running"
- Revert status to "running" on RPC failure
- Check ctx.Err() before writing response to avoid writing to dead
connections when client disconnects during long snapshot operations
Delete auth fix:
- Block non-admin deletion of platform templates (team_id = all-zeros)
at DELETE /v1/snapshots/{name} with 403, preventing file deletion
before the team ownership check fails
Sparse dd:
- Add conv=sparse to dd in FlattenSnapshot so flattened images preserve
sparseness (~200MB actual vs 5GB logical)
Default disk size:
- Change default disk_size_mb from 20GB to 5GB across migration,
manager, service, build, and EnsureImageSizes
- Disable split-button dropdown arrow for platform templates in
dashboard snapshots page (teams cannot delete platform templates)
Disk sizing:
- Add disk_size_mb column to sandboxes table (default 20480 = 20GB)
- Add disk_size_mb to CreateSandboxRequest proto, passed through the
full chain: service → RPC → host agent → sandbox manager → devicemapper
- devicemapper.CreateSnapshot takes separate cowSizeBytes param so the
sparse CoW file can be sized independently from the origin
- EnsureImageSizes() runs at host agent startup: expands any base image
smaller than 20GB via truncate + resize2fs (sparse, no extra physical
disk). Sandboxes then get the full 20GB via fast dm-snapshot path
- FlattenRootfs shrinks output images with resize2fs -M so stored
templates are compact; EnsureImageSizes re-expands on next startup
Admin templates visibility:
- Add GET /v1/admin/templates endpoint listing all templates across teams
- Frontend admin templates page uses listAdminTemplates() instead of
team-scoped listSnapshots()
- Platform templates (team_id = all-zeros UUID) now visible to all teams:
GetTemplateByTeam, ListTemplatesByTeam, ListTemplatesByTeamAndType
queries include platform team_id in WHERE clause
Consolidate 16 migrations into one with UUID columns for all entity
IDs. TEXT is kept only for polymorphic fields (audit_logs.actor_id,
resource_id) and template names. The id package now generates UUIDs
via google/uuid, with Format*/Parse* helpers for the prefixed wire
format (sb-{uuid}, usr-{uuid}, etc.). Auth context, services, and
handlers pass pgtype.UUID internally; conversion to/from prefixed
strings happens at API and RPC boundaries. Adds PlatformTeamID
(all-zeros UUID) for shared resources.
Samples /proc/{fc_pid}/stat (CPU%), /proc/{fc_pid}/status (VmRSS), and
stat() on CoW files at 500ms intervals per running sandbox. Three tiered
ring buffers downsample into 30s and 5min averages for 10min/2h/24h
retention. Metrics are flushed to DB on pause (all tiers) and destroy
(24h only). New GetSandboxMetrics and FlushSandboxMetrics RPCs on the
host agent, proxied through GET /v1/sandboxes/{id}/metrics?range= on
the control plane. Returns live data for running sandboxes, DB data for
paused, and 404 for stopped.
- Frontend: BYOC hosts page (/dashboard/byoc) with register/delete flows,
shimmer loading, pulsing online status, animated token reveal checkmark
- Frontend: Admin section (/admin/hosts) with platform + BYOC tabs, stat
pills, skeleton loading, slide-in animations for new rows
- Frontend: AdminSidebar component with accent top bar and admin pill badge
- Frontend: BYOC nav item shown only when team.is_byoc is true (derived
from teams store, not JWT); disabled for members
- Frontend: Admin shield button in Sidebar, visible only to platform admins
- Backend: is_admin in JWT claims + requireAdmin middleware (DB-validated)
- Backend: is_byoc added to teamResponse so frontend derives visibility
from fresh team data rather than stale JWT fields
- Backend: SetBYOC admin endpoint (PUT /v1/admin/teams/{id}/byoc)
- Backend: Admin hosts list enriches BYOC entries with team_name
- Host agent: load .env file via godotenv on startup
Replaces the hardcoded CP_HOST_AGENT_ADDR single-agent setup with a
DB-driven registration system supporting multiple host agents (BYOC).
Key changes:
- Host agents register via one-time token, receive a 7-day JWT + 60-day
refresh token; heartbeat loop auto-refreshes on 401/403 and pauses all
sandboxes if refresh fails
- HostClientPool: lazy Connect RPC client cache keyed by host ID, replacing
the single static agent client throughout the API and service layers
- RoundRobinScheduler: picks an online host for each new sandbox via
ListActiveHosts; extensible for future scheduling strategies
- HostMonitor (replaces Reconciler): passive heartbeat staleness check marks
hosts unreachable and sandboxes missing after 90s; active reconciliation
per online host restores missing-but-alive sandboxes and stops orphans
- Graceful host delete: returns 409 with affected sandbox list without
?force=true; force-delete destroys sandboxes then evicts pool client
- Snapshot delete broadcasts to all online hosts (templates have no host_id)
- sandbox.Manager.PauseAll: pauses all running VMs on CP connectivity loss
- New migration: host_refresh_tokens table with token rotation (issue-then-
revoke ordering to prevent lockout on mid-rotation crash)
- New sandbox status 'missing' (reversible, unlike 'stopped') and host
status 'unreachable'; both reflected in OpenAPI spec
- Fix: refresh token auth failure now returns 401 (was 400 via generic
'invalid' substring match in serviceErrToHTTP)
- Snapshot delete: make agent RPC failure a hard error so DB record is
not removed when files cannot be deleted from disk
- Snapshot overwrite: call agent to delete old files before removing the
DB record, preventing stale memfile.{uuid} generations from accumulating
on disk across repeated overwrites
- Sandbox destroy: only swallow CodeNotFound from the agent (sandbox
already gone / TTL-reaped); any other error now propagates to the caller
instead of being silently ignored
Moves business logic from API handlers into internal/service/ so that
both the REST API and the upcoming dashboard can share the same operations
without duplicating code. API handlers now delegate to the service layer
and only handle HTTP-specific concerns (request parsing, response formatting).
