POSTINSTALL_DOCKER_TARGET_USER="${POSTINSTALL_DEFAULT_USER:-gilles}"
POSTINSTALL_DOCKER_DATA_DIR="/home/${POSTINSTALL_DEFAULT_USER:-gilles}/docker"
POSTINSTALL_DOCKER_KEYRING_DIR="/etc/apt/keyrings"
POSTINSTALL_DOCKER_KEYRING_FILE="/etc/apt/keyrings/docker.asc"
POSTINSTALL_DOCKER_SOURCES_FILE="/etc/apt/sources.list.d/docker.list"