89 lines
4.0 KiB
Bash
89 lines
4.0 KiB
Bash
#!/bin/bash
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# Script d'analyse hebdomadaire des éléments obsolètes sur le système
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# Génère un rapport et l'envoie par email à admin@keller-laurent.org
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set -euo pipefail
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REPORT=$(mktemp)
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trap 'rm -f "$REPORT"' EXIT
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{
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echo "═══════════════════════════════════════════════"
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echo " RAPPORT HEBDOMADAIRE — ÉLÉMENTS OBSOLÈTES"
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echo " $(date '+%Y-%m-%d %H:%M') — $(hostname)"
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echo "═══════════════════════════════════════════════"
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echo ""
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# ── 1. Paquets orphelins (autoremove) ──
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echo "── 1. PAQUETS ORPHELINS (autoremove) ──────────"
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orphans=$(apt-get --just-print autoremove 2>&1 | grep "Remv" | sed 's/Remv //' | sed 's/ \[.*//' || true)
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orphan_count=$(echo "$orphans" | grep -c . || true)
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if [ "$orphan_count" -eq 0 ]; then
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echo " Aucun paquet orphelin."
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else
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orphan_size=$(dpkg-query -Wf '${Package}\t${Installed-Size}\n' $orphans 2>/dev/null | awk '{sum+=$2} END {printf "%.0f", sum/1024}')
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echo " Paquets: $orphan_count | Taille: ${orphan_size:-0} MB"
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echo ""
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echo " Top 10 plus gros :"
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dpkg-query -Wf '${Package}\t${Installed-Size}\n' $orphans 2>/dev/null | sort -t$'\t' -k2 -rn | head -10 | awk '{printf " %-40s %d MB\n", $1, $2/1024}'
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fi
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echo ""
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# ── 2. Anciens noyaux ──
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echo "── 2. ANCIENS NOYAUX ──────────────────────────"
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current_kernel=$(uname -r)
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installed_kernels=$(dpkg -l 'linux-image-*' 2>/dev/null | grep '^ii' | awk '{print $2}' | sort -V || true)
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old_kernels=$(echo "$installed_kernels" | grep -v "$(echo $current_kernel | sed 's/-[^-]*$//')" || true)
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old_count=$(echo "$old_kernels" | grep -c . || true)
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echo " Noyau actif : $current_kernel"
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if [ "$old_count" -eq 0 ]; then
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echo " Aucun ancien noyau."
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else
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echo " Anciens noyaux installés : $old_count"
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echo "$old_kernels" | sed 's/^/ /'
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fi
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echo ""
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# ── 3. Cache APT ──
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echo "── 3. CACHE APT ───────────────────────────────"
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apt_cache=$(du -sh /var/cache/apt/archives/ 2>/dev/null | awk '{print $1}')
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echo " Taille : $apt_cache"
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echo ""
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# ── 4. Journaux systemd ──
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echo "── 4. JOURNAUX SYSTEMD ────────────────────────"
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journal_size=$(journalctl --disk-usage 2>&1 | grep -oP '[\d.]+[GMK]' || echo "?")
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echo " Taille : $journal_size"
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echo ""
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# ── 5. Conteneurs/images Docker inutilisés ──
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if command -v docker &>/dev/null; then
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echo "── 5. DOCKER ──────────────────────────────────"
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unused_containers=$(docker container ls -a --filter status=exited --filter status=created -q 2>/dev/null | wc -l)
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dangling_images=$(docker images -f dangling=true -q 2>/dev/null | wc -l)
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unused_volumes=$(docker volume ls -f dangling=true -q 2>/dev/null | wc -l)
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echo " Conteneurs arrêtés : $unused_containers"
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echo " Images dangling : $dangling_images"
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echo " Volumes orphelins : $unused_volumes"
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echo ""
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fi
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# ── 6. Espace disque ──
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echo "── 6. ESPACE DISQUE ───────────────────────────"
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df -h / | tail -1 | awk '{printf " Utilisé: %s / %s (%s libre)\n", $3, $2, $4}'
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echo ""
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# ── 7. Fichiers temporaires volumineux ──
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echo "── 7. FICHIERS TEMPORAIRES VOLUMINEUX ─────────"
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tmp_size=$(du -sh /tmp 2>/dev/null | awk '{print $1}')
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echo " /tmp : $tmp_size"
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echo ""
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echo "═══════════════════════════════════════════════"
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echo " FIN DU RAPPORT"
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echo "═══════════════════════════════════════════════"
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} > "$REPORT"
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# Output for cron delivery
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cat "$REPORT"
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