Replaces the legacy nohup `go run ./cmd/server` setup with a fully
containerized local stack: postgres + redis + platform + canvas, all
with `restart: unless-stopped` so they survive Mac sleep/wake and
Docker Desktop daemon restarts.
## Changes
- **docker-compose.yml**
- `restart: unless-stopped` on platform/postgres/redis
- `BIND_ADDR=0.0.0.0` for platform — the dev-mode-fail-open default
of 127.0.0.1 (PR #7) made the host unable to reach the container
even with port mapping. Container netns is already isolated, so
binding all interfaces inside is safe.
- Healthchecks switched from `wget --spider` (HEAD → 404 forever
because /health is GET-only) to `wget -qO /dev/null` (GET).
Same regression existed on canvas; fixed both.
- **workspace-server/Dockerfile.dev**
- `CGO_ENABLED=1` → `0` to match prod Dockerfile + Dockerfile.tenant.
Without this, the alpine dev image fails with "gcc: not found"
because workspace-server has no actual cgo deps but the env was
forcing the cgo build path. Closes a divergence introduced in
9d50a6da (today's air hot-reload PR).
- **canvas/Dockerfile**
- `npm install` → `npm ci --include=optional` for lockfile-exact
installs that include platform-specific @tailwindcss/oxide native
binaries. Without these, `next build` fails with "Cannot read
properties of undefined (reading 'All')" on the
`@import "tailwindcss"` directive.
- **canvas/.dockerignore** (new)
- Excludes `node_modules` and `.next` so the Dockerfile's
`COPY . .` step doesn't clobber the freshly-installed container
node_modules with the host's (potentially stale or wrong-arch)
copy. This was the actual root cause of the canvas build break.
- **workspace-server/.gitignore**
- Adds `/tmp/` for air's live-reload build cache.
## Stage A verified
```
container status restart
postgres-1 Up (healthy) unless-stopped
redis-1 Up (healthy) unless-stopped
platform-1 Up (healthy, air-mode) unless-stopped
canvas-1 Up (healthy) unless-stopped
GET :8080/health → 200
GET :3000/ → 200
DB preserved: 407 workspace rows + 5 named personas
Persona mount: 28 dirs at /etc/molecule-bootstrap/personas
```
## Stage B — N/A
This is local-dev infrastructure only. None of these files ship to
SaaS tenants — production EC2s use `Dockerfile.tenant` + `ec2.go`
user-data, not docker-compose.
## Out of scope
- The decorative-but-broken `wget --spider` healthcheck has presumably
also been silently 404'ing on prod tenants. Ship a follow-up to
audit + fix the prod path; not done here to keep the PR scoped.
- Docker Desktop "Start at login" is a per-machine GUI setting that
must be toggled manually (Settings → General).
- The legacy heartbeat-all.sh that pinged 5 persona workspaces from
the host has been deleted (~/.molecule-ai/heartbeat-all.sh).
Per Hongming: each workspace is responsible for its own heartbeat.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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