feat: implement static file serving and Docker support, update frontend build process

Signed-off-by: zwlucas <lucas.fariamo08@gmail.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..48979be
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,61 @@
+# ============================================================
+#   YAUM — Multistage Docker Build
+#   Produces an ~20 MB single-binary image with zero runtime
+#   dependencies (Go + SvelteKit frontend embedded).
+# ============================================================
+
+# ─────────────────────────────────────────────────────────────
+# Stage 1: Build the SvelteKit frontend (static export)
+# ─────────────────────────────────────────────────────────────
+FROM node:20-alpine AS frontend-builder
+
+WORKDIR /build/frontend
+
+# Install dependencies (layer cached while package*.json stay the same)
+COPY frontend/package.json frontend/package-lock.json* ./
+RUN npm ci
+
+# Copy source and build
+COPY frontend/ ./
+RUN npm run build
+
+# Result: /build/frontend/build/   (200.html, _app/, …)
+
+# ─────────────────────────────────────────────────────────────
+# Stage 2: Compile the Go backend with the frontend embedded
+# ─────────────────────────────────────────────────────────────
+FROM golang:1.25-alpine AS backend-builder
+
+WORKDIR /build
+
+# Copy backend source
+COPY backend/ ./backend/
+
+# Copy the static export from Stage 1 into the Go embed directory
+COPY --from=frontend-builder /build/frontend/build/ ./backend/internal/static/build/
+
+# Build a fully static binary (no libc, no external deps)
+WORKDIR /build/backend
+RUN CGO_ENABLED=0 \
+    GOOS=linux \
+    GOARCH=amd64 \
+    go build \
+      -ldflags="-s -w" \
+      -o /app/yaum \
+      ./cmd/server/
+
+# ─────────────────────────────────────────────────────────────
+# Stage 3: Minimal runtime image
+# ─────────────────────────────────────────────────────────────
+FROM alpine:3.20
+
+# CA certificates so Go can verify TLS on monitored HTTPS URLs
+RUN apk add --no-cache ca-certificates tzdata
+
+COPY --from=backend-builder /app/yaum /app/yaum
+
+# Default port; can be overridden at runtime via config.json or env
+EXPOSE 8080
+
+WORKDIR /app
+CMD ["/app/yaum"]