routewatch/Dockerfile

66 lines
1.7 KiB
Docker

# Build stage
FROM golang:1.24-bookworm AS builder
# Install build dependencies (zstd for archive, gcc for CGO/sqlite3)
RUN apt-get update && apt-get install -y --no-install-recommends \
zstd \
gcc \
libc6-dev \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /src
# Copy everything
COPY . .
# Vendor dependencies (must be after copying source)
RUN go mod download && go mod vendor
# Build the binary with CGO enabled (required for sqlite3)
RUN CGO_ENABLED=1 GOOS=linux go build -o /routewatch ./cmd/routewatch
# Create source archive with vendored dependencies
RUN tar --zstd -cf /routewatch-source.tar.zst \
--exclude='.git' \
--exclude='*.tar.zst' \
.
# Runtime stage
FROM debian:bookworm-slim
# Install runtime dependencies
# - ca-certificates: for HTTPS connections
# - curl: for health checks
RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates \
curl \
&& rm -rf /var/lib/apt/lists/*
# Create non-root user
RUN useradd -r -u 1000 -m routewatch
RUN mkdir -p /var/lib/berlin.sneak.app.routewatch && chown routewatch:routewatch /var/lib/berlin.sneak.app.routewatch
RUN mkdir /app
WORKDIR /app
# Copy binary and source archive from builder
COPY --from=builder /routewatch /app/routewatch
COPY --from=builder /routewatch-source.tar.zst /app/source/routewatch-source.tar.zst
# Set ownership
RUN chown -R routewatch:routewatch /app
USER routewatch
ENV XDG_DATA_HOME=/var/lib
# Expose HTTP port
EXPOSE 8080
# Health check using the health endpoint
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
CMD curl -sf http://localhost:8080/.well-known/healthcheck.json || exit 1
ENTRYPOINT ["/app/routewatch"]