Dockerfile.base

# ==============================================================================
# Dockerfile.base - System Base Layer
# ==============================================================================
# This layer contains rarely-changing system packages and dependencies.
# Rebuild trigger: Ubuntu base updates, system package additions
# Build time: ~3-4 minutes
# Size: ~550MB
# Stability: Updated monthly or less
# ==============================================================================

FROM ubuntu:24.04

# Prevent interactive prompts during package installation
ENV DEBIAN_FRONTEND=noninteractive

# Set locale to prevent locale warnings
ENV LANG=C.UTF-8
ENV LC_ALL=C.UTF-8

# Copy only what's needed for package installation
COPY docker/lib/registry-retry.sh /docker/lib/registry-retry.sh
COPY docker/scripts/install-packages.sh /docker/scripts/install-packages.sh

# Make scripts executable
RUN chmod +x /docker/lib/registry-retry.sh /docker/scripts/install-packages.sh

# Install system packages
# This layer includes:
# - Build tools (build-essential, pkg-config)
# - System utilities (curl, git, jq, vim, etc.)
# - PostgreSQL and Redis clients
# - Development libraries (libssl-dev, zlib1g-dev, etc.)
RUN /docker/scripts/install-packages.sh

# Clean up to reduce layer size
RUN apt-get clean && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Label for tracking
LABEL org.opencontainers.image.title="Sindri Base System"
LABEL org.opencontainers.image.description="Ubuntu 24.04 with system packages"
LABEL org.opencontainers.image.vendor="Sindri"
LABEL sindri.layer="base"