76 lines
2.7 KiB
Markdown
76 lines
2.7 KiB
Markdown
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---
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phase: quick
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plan: 260329-x2a
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subsystem: deployment
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tags: [docker, deployment, containerization]
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dependency_graph:
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requires: []
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provides: [docker-image, containerized-deployment]
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affects: []
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tech_stack:
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added: [node:22-alpine, Docker multi-stage build]
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patterns: [multi-stage Docker build, Vite preview server in container]
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key_files:
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created:
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- Dockerfile
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- .dockerignore
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modified: []
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decisions:
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- "All deps are devDependencies (vite, typescript etc.) so serve stage uses npm ci without --omit=dev to have vite available for vite preview"
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- "config.json override via volume mount to dist/config.json (Vite preview serves dist/)"
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- "vite.config.ts copied into serve stage so vite preview can read host/port config"
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metrics:
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duration: "<1min"
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completed: "2026-03-29"
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tasks: 1
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files: 2
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---
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# Quick Task 260329-x2a: Dockerfile and .dockerignore for Zauberwald
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**One-liner:** Multi-stage Docker build (node:22-alpine) with Vite preview server on port 4173 and runtime config.json override via volume mount.
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## Tasks Completed
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| Task | Name | Commit | Files |
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|------|------|--------|-------|
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| 1 | Create Dockerfile and .dockerignore | 3f5fc0f | Dockerfile, .dockerignore |
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## What Was Built
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**Dockerfile** — Two-stage build:
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- Stage 1 (`build`): `node:22-alpine`, installs all deps with `npm ci`, copies source, runs `npm run build` (tsc + vite build) producing `dist/`
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- Stage 2 (`serve`): `node:22-alpine`, installs all deps again (needed for `vite preview`), copies `dist/` and `vite.config.ts` from build stage, exposes port 4173, runs `npm run preview`
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**.dockerignore** — Excludes `node_modules`, `dist`, `.git`, `.planning`, `*.md`, `.biome`, `.claude`, `.agents` from build context.
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## Usage
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```bash
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# Build the image
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docker build -t zauberwald .
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# Run with config.json mounted from host
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docker run -v /path/to/config.json:/app/dist/config.json:ro -p 4173:4173 zauberwald
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```
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The app is then accessible at `http://localhost:4173`.
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## Key Decisions
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- All project dependencies are `devDependencies` (vite, typescript, etc.). The serve stage must run `npm ci` (without `--omit=dev`) so that `vite` is available for `npm run preview`.
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- `public/config.json` is intentionally NOT excluded from `.dockerignore` — it must be baked into `dist/` during build. At runtime, users can override it by mounting their own `config.json` to `/app/dist/config.json`.
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- `vite.config.ts` is copied into the serve stage because Vite reads it to apply the `host: "0.0.0.0"` and `port: 4173` preview settings.
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## Deviations from Plan
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None — plan executed exactly as written.
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## Self-Check: PASSED
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- Dockerfile exists: FOUND
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- .dockerignore exists: FOUND
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- Commit 3f5fc0f exists: FOUND
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- EXPOSE 4173 in Dockerfile: FOUND
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- node_modules in .dockerignore: FOUND
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