nxtgauge-backend-rust/Dockerfile.simple

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# Simple fast Dockerfile - no fancy caching, just builds fast
# Uses local cargo cache between builds
ARG SERVICE_NAME
FROM rust:alpine AS builder
ARG SERVICE_NAME
# Install deps
RUN apk add --no-cache musl-dev pkgconfig openssl-dev openssl-libs-static && \
rustup target add x86_64-unknown-linux-musl
WORKDIR /app
# Copy manifests first for better caching
COPY Cargo.toml Cargo.lock ./
COPY crates/ ./crates/
# Copy only the target service source (fast path for matrix builds).
COPY apps/${SERVICE_NAME}/ ./apps/${SERVICE_NAME}/
# Restrict workspace members to the selected service + shared crates.
# This avoids requiring every `apps/*` manifest while preserving workspace deps.
RUN awk -v svc="${SERVICE_NAME}" '\
BEGIN { in_members = 0 } \
/^members = \[/ { \
print "members = ["; \
print " \"apps/" svc "\","; \
print " \"crates/contracts\","; \
print " \"crates/db\","; \
print " \"crates/auth\","; \
print " \"crates/storage\","; \
print " \"crates/cache\","; \
print " \"crates/email\""; \
in_members = 1; \
next; \
} \
in_members && /^\]/ { in_members = 0; print "]"; next } \
in_members { next } \
{ print }' Cargo.toml > Cargo.toml.tmp && mv Cargo.toml.tmp Cargo.toml
# Build with all optimizations
ENV RUSTFLAGS="-C target-feature=+crt-static -C link-arg=-s"
ENV OPENSSL_STATIC=1
ENV OPENSSL_DIR=/usr
RUN cargo build --release \
--bin ${SERVICE_NAME} \
--target x86_64-unknown-linux-musl
# Runtime
FROM scratch
ARG SERVICE_NAME
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/${SERVICE_NAME} /app/service
USER 65532:65532
EXPOSE 8000
ENTRYPOINT ["/app/service"]