fix: simplify Docker build to resolve multi-platform failures

## Root cause
- Docker buildx memory options were incorrectly formatted
- Database build during Docker image creation was failing on multi-platform builds
- n8n native dependencies caused issues across different architectures

## Solution
- Removed invalid buildx driver-opts configuration
- Eliminated database build stage from Dockerfile
- Now using pre-built nodes.db file (11MB) from repository
- Fixed .dockerignore to include nodes.db in build context
- Added .dockerignore to version control (was incorrectly gitignored)

## Benefits
- Faster builds (no n8n package installation during build)
- More reliable multi-platform builds (amd64 + arm64)
- Simpler Dockerfile (3 stages instead of 4)

Database can still be rebuilt locally using 'npm run rebuild' when needed.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,52 @@
+# .dockerignore
+node_modules
+npm-debug.log
+.git
+.gitignore
+.env
+.env.local
+# Keep nodes.db but exclude other database files
+data/*.db
+!data/nodes.db
+dist
+.DS_Store
+*.log
+coverage
+.nyc_output
+.vscode
+.idea
+*.swp
+*.swo
+*~
+docker-compose.override.yml
+.github
+docs
+tests
+jest.config.js
+.eslintrc.js
+*.md
+!README.md
+!LICENSE
+# Exclude n8n-docs if present
+../n8n-docs
+n8n-docs
+# Exclude extracted nodes
+extracted-nodes/
+# Exclude temp directory
+temp/
+# Exclude any backup or temporary files
+*.bak
+*.tmp
+*.temp
+# Exclude build artifacts
+build/
+out/
+# Exclude local development files
+.eslintcache
+.stylelintcache
+# Exclude any large test data
+test-data/
+# Exclude Docker files during build
+Dockerfile*
+docker-compose*.yml
+.dockerignore

.github/workflows/docker-build.yml

@@ -34,10 +34,6 @@ jobs:
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          driver-opts: |
-            memory=8g
-            memory-swap=16g
         
       - name: Log in to GitHub Container Registry
         if: github.event_name != 'pull_request'
@@ -74,9 +70,6 @@ jobs:
           build-args: |
             BUILDKIT_INLINE_CACHE=1
           provenance: false
-          # Add build constraints to prevent OOM
-          builder: ${{ steps.buildx.outputs.name }}
-          no-cache-filters: db-builder
 
   # Nginx build commented out until Phase 2
   # build-nginx:

.gitignore

@@ -51,7 +51,6 @@ coverage/
 .yarn-integrity
 
 # Docker
-.dockerignore
 docker-compose.override.yml
 
 # Miscellaneous

Dockerfile

@@ -1,4 +1,4 @@
-# Optimized Dockerfile - builds database at build time, minimal runtime image
+# Optimized Dockerfile - uses pre-built database for faster, more reliable builds
 
 # Stage 1: Dependencies (includes n8n for building)
 FROM node:20-alpine AS deps
@@ -21,25 +21,7 @@ COPY . .
 # Build TypeScript
 RUN npm run build
 
-# Stage 3: Database Builder (extracts all node info and builds database)
-FROM builder AS db-builder
-WORKDIR /app
-# Clone n8n-docs for documentation (if available)
-# Fix git SSL issues in Alpine and configure git properly
-RUN apk add --no-cache git ca-certificates && \
-    git config --global http.sslVerify false && \
-    git config --global init.defaultBranch main && \
-    git clone --depth 1 https://github.com/n8n-io/n8n-docs.git /tmp/n8n-docs 2>/dev/null || \
-    echo "Warning: Could not clone n8n-docs, continuing without documentation"
-ENV N8N_DOCS_PATH=/tmp/n8n-docs
-# Build the complete database with source code
-RUN mkdir -p data && \
-    npm run rebuild:optimized || \
-    (echo "Warning: Optimized rebuild failed, trying regular rebuild" && \
-     npm run rebuild) || \
-    (echo "Error: Database build failed" && exit 1)
-
-# Stage 4: Minimal Runtime (no n8n packages)
+# Stage 3: Minimal Runtime (no n8n packages)
 FROM node:20-alpine AS runtime
 WORKDIR /app
 
@@ -69,8 +51,8 @@ RUN npm config set fetch-retries 5 && \
 # Copy built application
 COPY --from=builder /app/dist ./dist
 
-# Copy pre-built database with all source code
-COPY --from=db-builder /app/data/nodes.db ./data/
+# Copy pre-built database from source
+COPY data/nodes.db ./data/
 
 # Copy minimal required files
 COPY src/database/schema-optimized.sql ./src/database/