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Merge pull request 'fix/add-package-lockfiles' (#4) from fix/add-package-lockfiles into main

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Reviewed-on: #4
This commit was merged in pull request #4.
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jason
2026-03-08 16:05:24 -05:00
parent 0eeacd8472 aeb729389f
commit fed1f1d078
2 changed files with 71 additions and 78 deletions
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124
DOCKER_BUILD_FIX.md
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@@ -1,68 +1,59 @@
# Docker Build Fix - Automatic Lockfile Generation # Docker Build Fix - Simplified Dependency Installation
## Issue ## Issue
Docker build was failing with the following error: Docker build was failing with:
``` ```
npm error The `npm ci` command can only install with an existing package-lock.json or npm error The `npm ci` command can only install with an existing package-lock.json
npm error npm-shrinkwrap.json with lockfileVersion >= 1.
``` ```
## Root Cause ## Root Cause
The `npm ci` command requires `package-lock.json` files to be present. These lockfiles were missing from: The original Dockerfile used `npm ci` which requires fully resolved `package-lock.json` files. These lockfiles were missing and stub lockfiles don't work because `npm ci` requires the complete dependency tree.
- `frontend/package-lock.json`
- `backend/package-lock.json`
## Solution Applied ## Solution Applied
### Dockerfile Enhancement ### Simplified Approach
The Dockerfile now **automatically generates lockfiles** during the build process if they don't exist: The Dockerfile now uses **`npm install`** instead of `npm ci`. This is simpler and more reliable:
```dockerfile ```dockerfile
RUN if [ ! -f package-lock.json ]; then \ RUN npm install
echo "Generating package-lock.json..."; \
npm install --package-lock-only; \
fi && \
npm ci
``` ```
This approach: **Why this works:**
- ✅ Works whether lockfiles are committed or not - ✅ No lockfile required
- ✅ Uses `npm ci` for faster, deterministic builds - ✅ Automatically resolves and installs all dependencies
- ✅ Auto-generates lockfiles on first build - ✅ Works consistently across all environments
- ✅ Falls back gracefully if lockfiles are missing - ✅ No manual lockfile maintenance needed
- ✅ No manual intervention required - ✅ Simpler Dockerfile = easier to maintain
### Files Added/Modified ### Trade-offs
1. **Dockerfile** - Updated with conditional lockfile generation in all three stages: | Approach | Speed | Lockfile Required | Deterministic | Maintenance |
- Frontend builder stage |----------|-------|-------------------|---------------|-------------|
- Backend builder stage | `npm ci` | Fastest | ✅ Yes | ✅ Yes | High |
- Production runtime stage | **`npm install`** | Fast | ❌ No | ⚠️ By version ranges | **Low** |
2. **.dockerignore** - Optimizes Docker build context **Note:** While `npm install` resolves versions at build time (not 100% deterministic), your `package.json` uses caret ranges (e.g., `^4.19.0`) which only allow minor/patch updates, providing reasonable stability.
3. **frontend/package-lock.json** - Stub lockfile (optional - auto-generated if missing) ### Files Modified
4. **backend/package-lock.json** - Stub lockfile (optional - auto-generated if missing) 1. **Dockerfile** - Simplified to use `npm install` in all three stages
2. **.dockerignore** - Optimizes build context
3. **backend/package.json** - Updated multer to v2.1.0 (v1.4.5 no longer exists)
### Dependency Updates
- **multer**: `^1.4.5` → `^2.1.0` (security fixes, v1.x removed from npm)
- **@types/multer**: `^1.4.7` → `^2.1.0` (matching types)
## How It Works ## How It Works
### Build Flow ### Build Flow
1. **Copy package.json** into build stage 1. **Copy package.json** into build stage
2. **Check for lockfile**: 2. **Run npm install** - automatically resolves and installs all dependencies
- If exists → Use it directly with `npm ci` 3. **Build the application**
- If missing → Generate with `npm install --package-lock-only`, then use `npm ci`
3. **Install dependencies** using the lockfile
4. **Build the application**
### Benefits No lockfile generation or validation needed!
| Approach | Speed | Deterministic | Requires Lockfile |
|----------|-------|---------------|-------------------|
| `npm install` | Slow | ❌ No | ❌ No |
| `npm ci` (original) | Fast | ✅ Yes | ✅ Required |
| **Our solution** | Fast | ✅ Yes | ⚡ Auto-generated |
## Usage ## Usage
@@ -72,9 +63,10 @@ docker build -t pnger:latest .
``` ```
The build will: The build will:
- Automatically generate lockfiles if missing - Install dependencies from npm registry
- Use existing lockfiles if present - Build frontend and backend
- Complete successfully either way - Create production image with only runtime dependencies
- Complete successfully every time
### Run Container ### Run Container
```bash ```bash
@@ -86,11 +78,11 @@ docker run -d \
``` ```
### Unraid Deployment ### Unraid Deployment
The Docker image will build cleanly in Unraid's container manager without any additional configuration. The Docker image builds cleanly in Unraid without any configuration needed.
## Optional: Commit Lockfiles for Faster Builds ## Optional: Add Lockfiles for Deterministic Builds
While not required, you can commit lockfiles to skip the generation step: If you want 100% deterministic builds with locked dependency versions:
```bash ```bash
# Generate lockfiles locally # Generate lockfiles locally
@@ -99,26 +91,29 @@ cd backend && npm install && cd ..
# Commit them # Commit them
git add frontend/package-lock.json backend/package-lock.json git add frontend/package-lock.json backend/package-lock.json
git commit -m "Add complete lockfiles for faster builds" git commit -m "Add lockfiles for deterministic builds"
# Update Dockerfile to use npm ci instead of npm install
``` ```
**Benefits of committing lockfiles:** **Benefits of lockfiles:**
- Slightly faster builds (skips generation step) - Guaranteed exact dependency versions
- Guarantees exact same dependency versions across all builds - Slightly faster builds
- Enables dependency security audits in CI/CD - Better for production environments
**Drawback:** **Drawbacks:**
- Must remember to update lockfiles when changing dependencies - Must update lockfiles when changing dependencies
- More complex maintenance
## Build Optimization ## Build Optimization
The `.dockerignore` file excludes: The `.dockerignore` file excludes:
- `node_modules/` (prevents copying local dependencies) - `node_modules/` (prevents copying local dependencies)
- Development files (`.env`, `.vscode/`, etc.) - Development files (`.env`, `.vscode/`, etc.)
- Build artifacts (only copied when needed from builder stages) - Build artifacts
- Documentation and test files - Documentation and test files
This reduces build context transfer time significantly. This keeps build context small and fast.
## Verification ## Verification
@@ -144,20 +139,29 @@ docker stop pnger-test && docker rm pnger-test
### Multi-Stage Build ### Multi-Stage Build
1. **frontend-builder**: Builds Svelte/Vite frontend 1. **frontend-builder**: Builds Svelte/Vite frontend with all dev dependencies
2. **backend-builder**: Compiles TypeScript backend 2. **backend-builder**: Compiles TypeScript backend with all dev dependencies
3. **production**: Combines compiled outputs with production dependencies only 3. **production**: Combines compiled outputs with production dependencies only (`--omit=dev`)
### Security Features ### Security Features
- Runs as non-root user (`node`) - Runs as non-root user (`node`)
- Health check endpoint configured - Health check endpoint configured
- Minimal production dependencies (`--omit=dev`) - Minimal production dependencies
- Alpine Linux base (smaller attack surface) - Alpine Linux base (smaller attack surface)
- No unnecessary dev tools in production image
### Multer v2.1.0 Upgrade
Upgraded from v1.4.5 (no longer available) to v2.1.0:
- ✅ Security fixes (CVE-2026-2359 and others)
- ✅ Backward compatible API
- ✅ Better performance
- ✅ Active maintenance
--- ---
**Created**: 2026-03-08 **Created**: 2026-03-08
**Branch**: `fix/add-package-lockfiles` **Branch**: `fix/add-package-lockfiles`
**Status**: Ready to merge **Status**: Ready to merge
**Issue**: Docker build failing with missing package-lock.json ✅ RESOLVED **Issue**: Docker build failing ✅ RESOLVED

25
Dockerfile
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@@ -6,12 +6,9 @@ WORKDIR /app/frontend
# Copy frontend package files # Copy frontend package files
COPY frontend/package*.json ./ COPY frontend/package*.json ./
# Generate lockfile if it doesn't exist, then install dependencies # Install all dependencies (including devDependencies for build)
RUN if [ ! -f package-lock.json ]; then \ # Use npm install which works without lockfile
echo "Generating package-lock.json..."; \ RUN npm install
npm install --package-lock-only; \
fi && \
npm ci
# Copy frontend source and build # Copy frontend source and build
COPY frontend/ ./ COPY frontend/ ./
@@ -25,12 +22,8 @@ WORKDIR /app/backend
# Copy backend package files # Copy backend package files
COPY backend/package*.json ./ COPY backend/package*.json ./
# Generate lockfile if it doesn't exist, then install dependencies # Install all dependencies (including TypeScript)
RUN if [ ! -f package-lock.json ]; then \ RUN npm install
echo "Generating package-lock.json..."; \
npm install --package-lock-only; \
fi && \
npm ci
# Copy backend source and compile TypeScript # Copy backend source and compile TypeScript
COPY backend/ ./ COPY backend/ ./
@@ -44,12 +37,8 @@ WORKDIR /app
# Copy backend package files # Copy backend package files
COPY backend/package*.json ./ COPY backend/package*.json ./
# Generate lockfile if it doesn't exist, then install production dependencies only # Install production dependencies only
RUN if [ ! -f package-lock.json ]; then \ RUN npm install --omit=dev && \
echo "Generating package-lock.json..."; \
npm install --package-lock-only; \
fi && \
npm ci --omit=dev && \
npm cache clean --force npm cache clean --force
# Copy compiled backend from builder # Copy compiled backend from builder