nxtgauge-backend-rust/Dockerfile.fast
Ashwin Kumar Sivakumar f7d0f6f9f5
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fix: Update Dockerfiles to use ci.nxtgauge.com registry
2026-07-08 03:37:18 +05:30

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# Multi-stage optimized Dockerfile with caching and minimal size
# Build: docker build --build-arg SERVICE_NAME=users -f Dockerfile.fast .
# Stage 1: Chef - Prepare dependency recipe
FROM ci.nxtgauge.com/admin/rust:alpine AS chef
RUN apk add --no-cache musl-dev pkgconfig openssl-dev && \
rustup target add x86_64-unknown-linux-musl && \
cargo install cargo-chef
WORKDIR /app
# Stage 2: Planner - Analyze dependencies
FROM chef AS planner
COPY Cargo.toml Cargo.lock ./
COPY crates/ ./crates/
COPY apps/ ./apps/
RUN cargo chef prepare --recipe-path recipe.json
# Stage 3: Builder - Compile with caching
FROM chef AS builder
ARG SERVICE_NAME
ARG RUSTFLAGS="-C target-feature=+crt-static -C link-arg=-s"
# Copy recipe and build dependencies (cached layer!)
COPY --from=planner /app/recipe.json recipe.json
RUN cargo chef cook --release --target x86_64-unknown-linux-musl --recipe-path recipe.json
# Copy source and build specific service
COPY Cargo.toml Cargo.lock ./
COPY crates/ ./crates/
COPY apps/ ./apps/
# Build with size optimizations
ENV RUSTFLAGS="${RUSTFLAGS}"
ENV CARGO_NET_OFFLINE=false
ENV CARGO_NET_RETRY=10
# Use single job for better caching
RUN cargo build --release \
--bin ${SERVICE_NAME} \
--target x86_64-unknown-linux-musl \
--locked
# Stage 4: Minimal runtime - Scratch (even smaller than distroless!)
FROM scratch AS runtime
ARG SERVICE_NAME
# Copy CA certificates for HTTPS
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
# Copy static binary
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/${SERVICE_NAME} /app/service
# Expose port (will be overridden by env)
EXPOSE 8000
# Run as non-root (numeric uid for scratch)
USER 65532:65532
ENTRYPOINT ["/app/service"]