initial docker setup

Dockerfile

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+FROM oven/bun:debian AS frontend-dependency-installer
+WORKDIR /usr/src/warren
+
+COPY frontend/package.json frontend/bun.lock ./
+RUN bun install --frozen-lockfile --ignore-scripts
+
+
+FROM node:bookworm AS frontend-builder
+WORKDIR /usr/src/warren
+
+COPY --from=frontend-dependency-installer /usr/src/warren/ .
+COPY frontend/ ./
+RUN npm run generate
+
+
+FROM rust:bookworm AS backend-builder
+WORKDIR /usr/src/warren
+
+COPY backend/ .
+RUN cargo build --release
+
+
+FROM debian:bookworm
+WORKDIR /var/lib/warren
+
+COPY --from=backend-builder /usr/src/warren/target/release/warren /usr/bin/warren
+COPY --from=frontend-builder /usr/src/warren/dist ./frontend
+
+ENTRYPOINT ["warren"]