# Dockerfile for next.orly.dev relay (benchmark version)
# Uses pure Go build with purego for dynamic libsecp256k1 loading

# Stage 1: Build stage
# Use Debian-based Go image to match runtime stage (avoids musl/glibc linker mismatch)
FROM golang:1.25-bookworm AS builder

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends git make && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /build

# Copy go mod files first for better layer caching
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build the relay with CGO disabled (uses purego for crypto)
# Include debug symbols for profiling
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -gcflags "all=-N -l" -o relay .

# Create non-root user (uid 1000) for runtime in builder stage (used by analyzer)
RUN useradd -m -u 1000 appuser && \
    chown -R 1000:1000 /build
# Switch to uid 1000 for any subsequent runtime use of this stage
USER 1000:1000

# Final stage
# Use Debian slim instead of Alpine because Debian's libsecp256k1 includes
# Schnorr signatures (secp256k1_schnorrsig_*) and ECDH which Nostr requires.
# Alpine's libsecp256k1 is built without these modules.
FROM debian:bookworm-slim

# Install runtime dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends ca-certificates curl libsecp256k1-1 && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy binary (libsecp256k1.so.1 is already installed via apt)
COPY --from=builder /build/relay /app/relay

# Create runtime user and writable directories
RUN useradd -m -u 1000 appuser && \
    mkdir -p /data /profiles /app && \
    chown -R 1000:1000 /data /profiles /app

# Expose port
EXPOSE 8080

# Set environment variables
ENV ORLY_DATA_DIR=/data
ENV ORLY_LISTEN=0.0.0.0
ENV ORLY_PORT=8080
ENV ORLY_LOG_LEVEL=off
# Aggressive cache settings to match Badger's cost metric
# Badger tracks ~52MB cost per key, need massive cache for good hit ratio
# Block cache: 16GB to hold ~300 keys in cache
# Index cache: 4GB for index lookups
ENV ORLY_DB_BLOCK_CACHE_MB=16384
ENV ORLY_DB_INDEX_CACHE_MB=4096

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD curl -f http://localhost:8080/ || exit 1

# Drop privileges: run as uid 1000
USER 1000:1000

# Run the relay
CMD ["/app/relay"]
