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6993919 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | #!/bin/bash
# scripts/docker_cleanup.sh — Netcup Docker cleanup script
set -euo pipefail
LOG=/var/log/docker-cleanup.log
log() {
echo "[$(date +%H:%M:%S)] $*" | tee -a "$LOG"
}
log "=== Docker Cleanup ==="
# 1. Remove exited containers
log "Pruning exited containers..."
docker container prune -f 2>/dev/null | tee -a "$LOG"
# 2. Remove dangling images (untagged)
log "Pruning dangling images..."
docker image prune -f 2>/dev/null | tee -a "$LOG"
# 3. Remove unused images (not referenced by any container)
log "Pruning unused images..."
docker image prune -a -f 2>/dev/null | tee -a "$LOG"
# 4. Remove build cache
log "Pruning build cache..."
docker builder prune -a -f 2>/dev/null | tee -a "$LOG"
# 5. Remove unused volumes (BE CAREFUL — only unused)
log "Pruning unused volumes..."
docker volume prune -f 2>/dev/null | tee -a "$LOG"
# 6. Report
log "=== After cleanup ==="
docker system df | tee -a "$LOG"
df -h / | tee -a "$LOG"
free -m | tee -a "$LOG"
log "=== Cleanup complete ==="
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