Dockerfile.node

FROM node:20 AS base

############################################
# Development Image
############################################
FROM base AS development

# We can pass USER_ID and GROUP_ID as build arguments
# to ensure the node user has the same UID and GID
# as the user running Docker.
ARG USER_ID
ARG GROUP_ID

# Switch to root so we can set the user ID and group ID
USER root

# Script to handle existing group ID
RUN if getent group "$GROUP_ID" > /dev/null; then \
        moved_group_id="99$GROUP_ID"; \
        existing_group_name=$(getent group "$GROUP_ID" | cut -d: -f1); \
        echo "Moving GID of $existing_group_name to $moved_group_id..."; \
        groupmod -g "$moved_group_id" "$existing_group_name"; \
    fi

# Script to handle existing user ID
RUN if getent passwd "$USER_ID" > /dev/null; then \
        moved_user_id="99$USER_ID"; \
        existing_username=$(getent passwd "$USER_ID" | cut -d: -f1); \
        echo "Moving UID of $existing_username to $moved_user_id..."; \
        usermod -u "$moved_user_id" "$existing_username"; \
    fi

# Set the user ID and group ID for the node user
RUN groupmod -g $GROUP_ID node && usermod -u $USER_ID -g $GROUP_ID node

# Drop privileges back to node user
USER node

############################################
# CI Image
############################################
FROM base AS ci