Mateusz Suski
71 lines
1.9 KiB
Bash
Executable File
71 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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set -o pipefail
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LOG_FILE="/var/log/ailab-docker-cleanup.log"
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execute=false
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non_interactive=false
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usage() {
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printf 'Usage: %s [--execute [--non-interactive]]\n' "$(basename "$0")"
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}
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while (($# > 0)); do
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case "$1" in
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--execute) execute=true ;;
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--non-interactive) non_interactive=true ;;
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-h|--help) usage; exit 0 ;;
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*) printf 'CRITICAL: unknown argument: %s\n' "$1" >&2; usage >&2; exit 2 ;;
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esac
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shift
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done
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if [[ "$non_interactive" == true && "$execute" != true ]]; then
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printf 'CRITICAL: --non-interactive requires --execute\n' >&2
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exit 2
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fi
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if ((EUID != 0)); then
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printf 'CRITICAL: this script must run as root\n' >&2
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exit 2
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fi
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exec > >(tee -a "$LOG_FILE") 2>&1
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printf '\n[%s] Docker cleanup\n' "$(date --iso-8601=seconds)"
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if ! command -v docker >/dev/null 2>&1; then
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printf 'INFO: Docker is not installed; nothing to do\n'
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exit 0
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fi
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if command -v systemctl >/dev/null 2>&1 && ! systemctl is-active --quiet docker; then
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printf 'INFO: docker.service is inactive; nothing to do\n'
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exit 0
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fi
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printf '\nDocker disk usage before cleanup:\n'
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docker system df
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if [[ "$execute" != true ]]; then
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printf 'INFO: dry-run mode; would run docker system prune -af\n'
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printf 'INFO: dry-run mode; would run docker builder prune -af --filter until=168h\n'
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printf 'INFO: Docker volumes are never included in this cleanup\n'
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exit 0
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fi
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if [[ "$non_interactive" != true ]]; then
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printf 'WARNING: this removes unused containers, networks, images, and old build cache, but not volumes.\n'
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printf 'Type EXECUTE to continue: '
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read -r confirmation
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if [[ "$confirmation" != "EXECUTE" ]]; then
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printf 'CRITICAL: confirmation failed; no changes made\n'
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exit 2
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fi
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fi
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docker system prune -af
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docker builder prune -af --filter "until=168h"
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printf '\nDocker disk usage after cleanup:\n'
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docker system df
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printf 'OK: Docker cleanup completed; volumes were not pruned\n'
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