Update fstrim.sh
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CanbiZ
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@ -7,8 +7,7 @@ function header_info() {
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cat <<"EOF"
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_______ __ __ ______ _
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/ ____(_) /__ _______ _______/ /____ ____ ___ /_ __/____(_)___ ___
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/ /_ / / / _ \/ ___/ / / / ___/ __/ _ \/ __ `__ \ / / / ___/ / / __ `__ \
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/ __/ / / __(__ ) /_/ (__ ) /_/ __/ / / / / / / / / / / / / / / / / / /
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/ /_ / / / _ \/ ___/ / / / ___/ __/ _ \/ __ `__ \ / / / ___/ / / / / / /
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/_/ /_/_/\___/____/\__, /____/\__/\___/_/ /_/ /_/ /_/ /_/ /_/_/ /_/ /_/
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/____/
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EOF
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@ -24,7 +23,7 @@ echo "Loading..."
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whiptail --backtitle "Proxmox VE Helper Scripts" \
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--title "About fstrim (LXC)" \
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--msgbox "The 'fstrim' command releases unused blocks back to the storage device. This only makes sense for containers on SSD, NVMe, Thin-LVM, or storage with discard/TRIM support.\n\nIf your root filesystem or container disks are on classic HDDs, thick LVM, or unsupported storage types, running fstrim will have no effect.\n\nRecommended:\n- Use fstrim only on SSD, NVMe, or thin-provisioned storage with discard enabled.\n- For ZFS, ensure 'autotrim=on' is set on your pool.\n" 16 88
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--msgbox "The 'fstrim' command releases unused blocks back to the storage device. This only makes sense for containers on SSD, NVMe, Thin-LVM, or storage with discard/TRIM support.\n\nIf your root filesystem or container disks are on classic HDDs, thick LVM, or unsupported storage types, running fstrim will have no effect.\n\nRecommended:\n- Use fstrim only on SSD, NVMe, or thin-provisioned storage with discard enabled.\n- For ZFS, ensure 'autotrim=on' is set on your pool.\n\nSee: https://pve.proxmox.com/wiki/Shrinking_LXC_disks" 16 88
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ROOT_FS=$(df -Th "/" | awk 'NR==2 {print $2}')
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if [ "$ROOT_FS" != "ext4" ]; then
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@ -37,36 +36,51 @@ NODE=$(hostname)
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EXCLUDE_MENU=()
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STOPPED_MENU=()
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MAX_NAME_LEN=0
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MAX_STAT_LEN=0
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while read -r CTID STATUS _ NAME _; do
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# Build arrays with one pct list
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mapfile -t CTLINES < <(pct list | awk 'NR>1')
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for LINE in "${CTLINES[@]}"; do
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CTID=$(awk '{print $1}' <<<"$LINE")
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STATUS=$(awk '{print $2}' <<<"$LINE")
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NAME=$(awk '{print $3}' <<<"$LINE")
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((${#NAME} > MAX_NAME_LEN)) && MAX_NAME_LEN=${#NAME}
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done < <(pct list | awk 'NR>1')
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((${#STATUS} > MAX_STAT_LEN)) && MAX_STAT_LEN=${#STATUS}
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done
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FMT="%-5s | %-${MAX_NAME_LEN}s | %-8s"
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FMT="%-5s | %-${MAX_NAME_LEN}s | %-${MAX_STAT_LEN}s"
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while read -r CTID STATUS _ NAME _; do
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for LINE in "${CTLINES[@]}"; do
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CTID=$(awk '{print $1}' <<<"$LINE")
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STATUS=$(awk '{print $2}' <<<"$LINE")
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NAME=$(awk '{print $3}' <<<"$LINE")
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DESC=$(printf "$FMT" "$CTID" "$NAME" "$STATUS")
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EXCLUDE_MENU+=("$CTID" "$DESC" "OFF")
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if [[ "$STATUS" == "stopped" ]]; then
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STOPPED_MENU+=("$CTID" "$DESC" "OFF")
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fi
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done < <(pct list | awk 'NR>1')
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done
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excluded_containers_raw=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
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--title "Containers on $NODE" \
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--checklist "\nSelect containers to skip from trimming:\n" \
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20 $((MAX_NAME_LEN + 40)) 12 "${EXCLUDE_MENU[@]}" 3>&1 1>&2 2>&3)
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20 $((MAX_NAME_LEN + MAX_STAT_LEN + 20)) 12 "${EXCLUDE_MENU[@]}" 3>&1 1>&2 2>&3)
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[ $? -ne 0 ] && exit
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read -ra EXCLUDED <<<$(echo "$excluded_containers_raw" | tr -d '"')
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TO_START=()
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if [ ${#STOPPED_MENU[@]} -gt 0 ]; then
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selected=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
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--title "Stopped LXC Containers" \
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--checklist "\nSome LXC containers are currently stopped.\nWhich ones do you want to temporarily start for the trim operation?\n(They can be stopped again afterwards)\n" \
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16 $((MAX_NAME_LEN + 40)) 8 "${STOPPED_MENU[@]}" 3>&1 1>&2 2>&3)
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[ $? -ne 0 ] && exit
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read -ra TO_START <<<$(echo "$selected" | tr -d '"')
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echo ""
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echo "Some containers are currently stopped."
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for ((i = 0; i < ${#STOPPED_MENU[@]}; i += 3)); do
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CTID="${STOPPED_MENU[i]}"
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DESC="${STOPPED_MENU[i + 1]}"
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read -rp "Temporarily start CT $DESC for fstrim? [y/N]: " answer
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if [[ "$answer" =~ ^[Yy]$ ]]; then
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TO_START+=("$CTID")
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fi
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done
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fi
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declare -A WAS_STOPPED
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@ -87,47 +101,48 @@ function trim_container() {
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sleep 0.5
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}
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for container in $(pct list | awk 'NR>1 {print $1}'); do
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if [[ " ${EXCLUDED[*]} " =~ " $container " ]]; then
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for LINE in "${CTLINES[@]}"; do
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CTID=$(awk '{print $1}' <<<"$LINE")
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STATUS=$(awk '{print $2}' <<<"$LINE")
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NAME=$(awk '{print $3}' <<<"$LINE")
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if [[ " ${EXCLUDED[*]} " =~ " $CTID " ]]; then
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header_info
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echo -e "${BL}[Info]${GN} Skipping $container (excluded)${CL}"
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echo -e "${BL}[Info]${GN} Skipping $CTID ($NAME, excluded)${CL}"
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sleep 0.5
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continue
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fi
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if pct config "$container" | grep -q "template:"; then
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if pct config "$CTID" | grep -q "template:"; then
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header_info
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echo -e "${BL}[Info]${GN} Skipping $container (template)${CL}\n"
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echo -e "${BL}[Info]${GN} Skipping $CTID ($NAME, template)${CL}\n"
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sleep 0.5
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continue
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fi
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STATUS=$(pct list | awk -v id="$container" '$1==id{print $2}')
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if [[ "$STATUS" != "running" ]]; then
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if [[ -n "${WAS_STOPPED[$container]:-}" ]]; then
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if [[ -n "${WAS_STOPPED[$CTID]:-}" ]]; then
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header_info
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echo -e "${BL}[Info]${GN} Starting $container for trim...${CL}"
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pct start "$container"
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echo -e "${BL}[Info]${GN} Starting $CTID ($NAME) for trim...${CL}"
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pct start "$CTID"
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sleep 2
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else
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header_info
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echo -e "${BL}[Info]${GN} Skipping $container (not running, not selected)${CL}"
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echo -e "${BL}[Info]${GN} Skipping $CTID ($NAME, not running, not selected)${CL}"
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sleep 0.5
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continue
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fi
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fi
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trim_container "$container"
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trim_container "$CTID"
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if [[ -n "${WAS_STOPPED[$container]:-}" ]]; then
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if whiptail --backtitle "Proxmox VE Helper Scripts" \
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--title "Stop container again?" \
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--yesno "Container $container was started for the trim operation.\n\nDo you want to stop it again now?" 10 60; then
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if [[ -n "${WAS_STOPPED[$CTID]:-}" ]]; then
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read -rp "Stop CT $CTID ($NAME) again after trim? [Y/n]: " answer
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if [[ ! "$answer" =~ ^[Nn]$ ]]; then
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header_info
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echo -e "${BL}[Info]${GN} Stopping $container again...${CL}"
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pct stop "$container"
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echo -e "${BL}[Info]${GN} Stopping $CTID ($NAME) again...${CL}"
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pct stop "$CTID"
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sleep 1
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else
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header_info
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echo -e "${BL}[Info]${GN} Leaving $container running as requested.${CL}"
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echo -e "${BL}[Info]${GN} Leaving $CTID ($NAME) running as requested.${CL}"
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sleep 1
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fi
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fi
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