shadow/docker/Dockerfile.e2e

# shadow-rs end-to-end deployment test image
#
# Simulates a real deployment: build from source, install system-wide
# (replacing GNU shadow-utils), then run ~100 assertions.
#
# Usage:
#   docker compose build e2e
#   docker compose run --rm e2e            # run all tests
#   docker compose run --rm e2e bash       # debug interactively

# ── Stage 1: build shadow-rs ────────────────────────────────────────
FROM rust:latest AS builder

RUN apt-get update && apt-get install -y --no-install-recommends \
    libpam0g-dev \
    libselinux1-dev \
    libaudit-dev \
    pkg-config \
    make \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /src
COPY . .

RUN cargo build --release --features pam \
    && make install DESTDIR=/install PREFIX=/usr

# ── Stage 2: runtime with tests ────────────────────────────────────
FROM debian:trixie-20260518

# Install GNU shadow-utils first — this creates /etc/pam.d/passwd,
# /etc/pam.d/su, and other PAM configs we need. We overwrite the
# binaries below but keep the PAM configuration intact.
RUN apt-get update && apt-get install -y --no-install-recommends \
    passwd \
    login \
    && rm -rf /var/lib/apt/lists/*

# Overwrite GNU binaries with shadow-rs
COPY --from=builder /install/usr/sbin/ /usr/sbin/

# Setuid-root — chmod on symlink sets the bit on the target binary
RUN chmod 4755 /usr/sbin/shadow-rs

# Install test dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    expect \
    nscd \
    ansible-core \
    python3-passlib \
    procps \
    openssl \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root test runner using our own tools
RUN /usr/sbin/useradd -m -s /bin/bash testrunner

# Copy test scripts
COPY tests/e2e/ /tests/e2e/
RUN chmod +x /tests/e2e/deploy-test.sh

WORKDIR /tests/e2e
CMD ["./deploy-test.sh"]