docs(17-01): complete docker deployment prep plan
- SUMMARY.md: standalone output, pool limit, health endpoint - STATE.md: advanced to plan 2, updated progress to 97%, added decisions - ROADMAP.md: phase 17 progress updated (1/2 plans complete) - REQUIREMENTS.md: DEPLOY-01, DEPLOY-02, DEPLOY-04 marked complete
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Chandler Copeland
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.planning/phases/17-docker-deployment/17-01-SUMMARY.md
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---
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phase: 17-docker-deployment
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plan: 01
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subsystem: infra
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tags: [docker, nextjs, standalone, neon, postgres, health-check]
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# Dependency graph
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requires:
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- phase: 01-foundation
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provides: db/index.ts lazy singleton and Drizzle setup
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provides:
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- next.config.ts with output standalone for Docker three-stage build
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- db connection pool capped at 5 for Neon free tier
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- GET /api/health endpoint for Docker HEALTHCHECK directive
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- @vercel/blob dead dependency removed from package.json
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affects: [17-02-docker-files, Dockerfile, docker-compose.yml]
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "Health endpoint pattern: public GET /api/health with SELECT 1 DB ping, 200/503 response"
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- "Neon pool limit: postgres(url, { max: 5 }) leaves headroom for migrations on free tier"
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key-files:
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created:
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- teressa-copeland-homes/src/app/api/health/route.ts
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modified:
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- teressa-copeland-homes/next.config.ts
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- teressa-copeland-homes/src/lib/db/index.ts
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- teressa-copeland-homes/package.json
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key-decisions:
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- "output: 'standalone' added to next.config.ts — required for Dockerfile three-stage build to produce self-contained server.js"
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- "postgres pool max: 5 — Neon free tier allows 10 connections; 5 leaves headroom for migrations and overlapping deploys"
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- "@vercel/blob removed — confirmed not imported anywhere in src/; BLOB_READ_WRITE_TOKEN excluded from .env.production.example"
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- "Health endpoint is intentionally public (no auth) so Docker HEALTHCHECK can reach it without credentials"
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patterns-established:
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- "Health check: SELECT 1 via Drizzle sql template tag, wrapped in try/catch, 200 ok / 503 error"
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requirements-completed: [DEPLOY-01, DEPLOY-02, DEPLOY-04]
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# Metrics
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duration: 2min
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completed: 2026-04-03
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---
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# Phase 17 Plan 01: Docker Deployment Prep Summary
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**Standalone Next.js output, Neon pool cap at 5, @vercel/blob removal, and public GET /api/health endpoint with SELECT 1 DB check**
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## Performance
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- **Duration:** 2 min
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- **Started:** 2026-04-03T22:52:56Z
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- **Completed:** 2026-04-03T22:53:49Z
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- **Tasks:** 2
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- **Files modified:** 4
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## Accomplishments
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- Added `output: 'standalone'` to `next.config.ts` (prerequisite for Dockerfile three-stage build)
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- Limited Neon postgres pool to `max: 5` in `src/lib/db/index.ts` to prevent connection exhaustion on free tier
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- Removed dead `@vercel/blob` dependency (7 packages removed, confirmed not imported anywhere in src/)
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- Created `GET /api/health` at `src/app/api/health/route.ts` — runs `SELECT 1` via Drizzle, returns 200 or 503
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Enable standalone output, limit DB pool, remove @vercel/blob** - `fa7d6a9` (feat)
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2. **Task 2: Create /api/health endpoint with DB connectivity check** - `57326d7` (feat)
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## Files Created/Modified
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- `teressa-copeland-homes/next.config.ts` - Added `output: 'standalone'`; kept existing `transpilePackages` and `serverExternalPackages`
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- `teressa-copeland-homes/src/lib/db/index.ts` - Changed `postgres(url)` to `postgres(url, { max: 5 })`
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- `teressa-copeland-homes/package.json` - Removed `@vercel/blob: ^2.3.1` from dependencies
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- `teressa-copeland-homes/src/app/api/health/route.ts` - New public GET endpoint, SELECT 1 via Drizzle, 200/503 response
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## Decisions Made
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- Health endpoint is intentionally public (no auth import, no session check) so Docker HEALTHCHECK can reach it without credentials
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- Kept `transpilePackages` and `serverExternalPackages` intact in next.config.ts per plan spec
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None — TypeScript compiled clean (`npx tsc --noEmit` passed with no output).
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- Plan 17-02 (Dockerfile, docker-compose.yml, .dockerignore, .env.production.example) can proceed immediately
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- All code-level prerequisites for the Docker build are now in place
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- Dockerfile builder stage will find `output: 'standalone'` in next.config.ts
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- `docker-compose.yml` HEALTHCHECK can target `http://localhost:3000/api/health`
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---
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*Phase: 17-docker-deployment*
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*Completed: 2026-04-03*
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