#!/usr/bin/env bash
# Read-only Docker inventory. Does not restart or delete containers.
set -uo pipefail
if ! command -v docker >/dev/null 2>&1; then printf 'Docker CLI unavailable.\n' >&2; exit 2; fi
printf 'UTC: %s\n' "$(date -u +'%FT%TZ')"
printf '\nContainer status:\n'
docker ps -a --format 'table {{.Names}}\t{{.Status}}\t{{.Image}}' || true
printf '\nDocker disk utilization:\n'
docker system df || true
printf '\nNo cleanup was performed. Container names and images may be sensitive.\n'