FROM golang:1.25.5-alpine3.23@sha256:6cc2338c038bc20f96ab32848da2b5c0641bb9bb5363f2c33e9b7c8838f9a208 AS build

WORKDIR /app

# Retrieve dependencies. Making this a separated step makes
# Docker be able to reuse cached dependencies
COPY go.* ./
RUN go mod download

# Copy local code
COPY . ./

# Build the binary
RUN go build -v -o depgraph

# Use standard alpine to run the application to
# have a lean production container
FROM debian:trixie-slim@sha256:4bcb9db66237237d03b55b969271728dd3d955eaaa254b9db8a3db94550b1885
RUN set -x && apt-get update && DEBIAN_FRONTEND=nointeractive apt-get install -y \
	ca-certificates && \
	rm -rf /var/lib/apt/lists/*

# Copy binary from build step to production image
COPY --from=build /app/depgraph /app/depgraph

# Run the application
CMD ["/app/depgraph"]