906620dd54
`mosaic fleet restart` runs as a fresh process each invocation, issuing `systemctl --user restart` for the tmux holder and then each agent. The agent sessions live inside the holder's tmux, so restarting the holder tears them down. With no mutual exclusion, a second restart entering while the first is still mid-teardown (upgrade `--relaunch`, a watchdog, or a hurried operator) interleaves: agents relaunch against a half-torn-down holder, fail, and tight-loop. Add a cross-process teardown-settle guard: a lock file under `<mosaicHome>/fleet/run/restart.lock` acquired with O_CREAT|O_EXCL. A re-entrant restart waits (bounded, injectable sleep) for the in-flight restart to release the lock before relaunching, breaks a stale lock left by a crashed owner, and after a max wait breaks the lock to avoid a permanent deadlock. Both full-fleet and single-agent restart paths are guarded; start/stop/status are unchanged. Regression test reproduces the race: with an in-flight lock held, the restart must wait before issuing any systemctl command — fails on the unguarded code path, passes with the guard. Adds stale-lock-break and lock-release coverage. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@mosaicstack/mosaic
CLI package for the Mosaic self-hosted AI agent platform.
Usage
mosaic wizard # First-run setup wizard
mosaic gateway install # Install the gateway daemon
mosaic config show # View current configuration
mosaic config hooks list # Manage Claude hooks
Headless / CI Installation
Set MOSAIC_ASSUME_YES=1 (or ensure stdin is not a TTY) to skip all interactive prompts. The following environment variables control the install:
Gateway configuration (mosaic gateway install)
| Variable | Default | Required |
|---|---|---|
MOSAIC_STORAGE_TIER |
local |
No |
MOSAIC_GATEWAY_PORT |
14242 |
No |
MOSAIC_DATABASE_URL |
(none) | Yes if tier=team |
MOSAIC_VALKEY_URL |
(none) | Yes if tier=team |
MOSAIC_ANTHROPIC_API_KEY |
(none) | No |
MOSAIC_CORS_ORIGIN |
http://localhost:3000 |
No |
Admin user bootstrap
| Variable | Default | Required |
|---|---|---|
MOSAIC_ADMIN_NAME |
(none) | Yes (headless) |
MOSAIC_ADMIN_EMAIL |
(none) | Yes (headless) |
MOSAIC_ADMIN_PASSWORD |
(none) | Yes (headless) |
MOSAIC_ADMIN_PASSWORD must be at least 8 characters. In headless mode a missing or too-short password causes a non-zero exit.
Example: Docker / CI install
export MOSAIC_ASSUME_YES=1
export MOSAIC_ADMIN_NAME="Admin"
export MOSAIC_ADMIN_EMAIL="admin@example.com"
export MOSAIC_ADMIN_PASSWORD="securepass123"
mosaic gateway install
Hooks management
After running mosaic wizard, Claude hooks are installed in ~/.claude/hooks-config.json.
mosaic config hooks list # Show all hooks and enabled/disabled status
mosaic config hooks disable PostToolUse # Disable a hook (reversible)
mosaic config hooks enable PostToolUse # Re-enable a disabled hook
Set CLAUDE_HOME to override the default ~/.claude directory.