49 lines
1.0 KiB
Docker
49 lines
1.0 KiB
Docker
# Multi-stage build for optimized production image
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FROM rust:1.83 as builder
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WORKDIR /app
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# Copy manifests for dependency caching
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COPY Cargo.toml Cargo.lock* ./
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# Copy source code
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COPY src ./src
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# Build for release
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RUN cargo build --release
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# Runtime stage
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FROM debian:bookworm-slim
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# Install CA certificates and curl for HTTPS requests and health checks
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RUN apt-get update && \
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apt-get install -y ca-certificates curl && \
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rm -rf /var/lib/apt/lists/*
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# Create app user
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RUN useradd -r -s /bin/false appuser
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# Copy the binary from builder stage
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COPY --from=builder /app/target/release/emailer-microservice /usr/local/bin/emailer-microservice
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# Set ownership
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RUN chown appuser:appuser /usr/local/bin/emailer-microservice
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# Switch to non-root user
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USER appuser
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# Environment defaults
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ENV HOST=0.0.0.0
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ENV PORT=4000
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ENV RUST_LOG=info
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# Expose port
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EXPOSE 4000
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# Health check
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HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
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CMD curl -f http://localhost:4000/health || exit 1
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# Run the binary
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CMD ["emailer-microservice"]
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