fix: ensure frontend is built before Docker build for go:embed

- Add frontend build step to Docker CI job before Docker build
- Update .dockerignore to explicitly include web/dist/ and web/embed.go
- Add verification step in Dockerfile to ensure web/dist exists
- Frontend must be built in CI before Docker build due to go:embed directive

This fixes the go:embed build failure while maintaining optimized build times.
The frontend is built once in CI, then the pre-built assets are embedded.

Author: zechtz

.dockerignore

@@ -37,6 +37,9 @@ web/tailwind.config.js
 web/postcss.config.js
 web/tsconfig.json
 web/tsconfig.node.json
+# Keep web/dist/ and web/embed.go - needed for go:embed
+!web/dist/
+!web/embed.go
 
 # Logs
 *.log

.github/workflows/release.yml

@@ -124,6 +124,19 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "18"
+          cache: "npm"
+          cache-dependency-path: web/package-lock.json
+
+      - name: Build frontend
+        run: |
+          cd web
+          npm ci
+          npm run build
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 

Dockerfile

@@ -14,9 +14,12 @@ WORKDIR /app
 COPY go.mod go.sum ./
 RUN go mod download
 
-# Copy source code and pre-built frontend
+# Copy source code (frontend should be pre-built by CI)
 COPY . .
 
+# Verify frontend dist exists (required for go:embed)
+RUN ls -la web/dist/ || (echo "ERROR: web/dist directory missing! Frontend must be built before Docker build." && exit 1)
+
 # Build the binary with optimizations
 RUN CGO_ENABLED=1 go build -ldflags="-s -w" -o vertex