ubuntu.Dockerfile

# Ubuntu test container for go-syspkg
FROM ubuntu:26.04

# Avoid interactive prompts
ENV DEBIAN_FRONTEND=noninteractive

# Install package managers and dependencies
RUN apt-get update && apt-get install -y \
    apt-utils \
    software-properties-common \
    flatpak \
    curl \
    git \
    make \
    && rm -rf /var/lib/apt/lists/*

# Install Go using Docker's TARGETARCH ARG for platform detection
ARG GO_VERSION=1.23.4
ARG TARGETARCH
SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]
RUN if [ -z "${TARGETARCH}" ]; then \
        echo "Error: TARGETARCH is not set. Use a BuildKit-enabled builder." >&2; \
        exit 1; \
    fi && \
    curl -L "https://go.dev/dl/go${GO_VERSION}.linux-${TARGETARCH}.tar.gz" | tar -C /usr/local -xz
ENV PATH="/usr/local/go/bin:${PATH}"

# Note: snap requires systemd which doesn't work in standard Docker containers
# Options for snap testing:
# 1. Use mock data for snap command outputs
# 2. Use GitHub Actions with native Ubuntu runners
# 3. Use systemd-enabled containers (complex setup)

# Set working directory
WORKDIR /workspace

# Install test dependencies
COPY go.mod go.sum ./
RUN go mod download

# Set test environment
ENV IN_CONTAINER=true
ENV CGO_ENABLED=0

# Default command runs tests
CMD ["go", "test", "-v", "./..."]