ProxmoxVED/tools/pve/fstrim.sh
2025-08-08 07:05:17 +00:00

139 lines
4.8 KiB
Bash

#!/usr/bin/env bash
set -eEuo pipefail
function header_info() {
clear
cat <<"EOF"
_______ __ __ ______ _
/ ____(_) /__ _______ _______/ /____ ____ ___ /_ __/____(_)___ ___
/ /_ / / / _ \/ ___/ / / / ___/ __/ _ \/ __ `__ \ / / / ___/ / / __ `__ \
/ __/ / / __(__ ) /_/ (__ ) /_/ __/ / / / / / / / / / / / / / / / / / /
/_/ /_/_/\___/____/\__, /____/\__/\___/_/ /_/ /_/ /_/ /_/ /_/_/ /_/ /_/
/____/
EOF
}
BL="\033[36m"
RD="\033[01;31m"
GN="\033[1;92m"
CL="\033[m"
header_info
echo "Loading..."
whiptail --backtitle "Proxmox VE Helper Scripts" \
--title "About fstrim (LXC)" \
--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
ROOT_FS=$(df -Th "/" | awk 'NR==2 {print $2}')
if [ "$ROOT_FS" != "ext4" ]; then
whiptail --backtitle "Proxmox VE Helper Scripts" \
--title "Warning" \
--yesno "Root filesystem is not ext4 ($ROOT_FS).\nContinue anyway?" 12 80 || exit 1
fi
NODE=$(hostname)
EXCLUDE_MENU=()
STOPPED_MENU=()
MAX_NAME_LEN=0
while read -r CTID STATUS _ NAME _; do
((${#NAME} > MAX_NAME_LEN)) && MAX_NAME_LEN=${#NAME}
done < <(pct list | awk 'NR>1')
FMT="%-5s | %-${MAX_NAME_LEN}s | %-8s"
while read -r CTID STATUS _ NAME _; do
DESC=$(printf "$FMT" "$CTID" "$NAME" "$STATUS")
EXCLUDE_MENU+=("$CTID" "$DESC" "OFF")
if [[ "$STATUS" == "stopped" ]]; then
STOPPED_MENU+=("$CTID" "$DESC" "OFF")
fi
done < <(pct list | awk 'NR>1')
excluded_containers_raw=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
--title "Containers on $NODE" \
--checklist "\nSelect containers to skip from trimming:\n" \
20 $((MAX_NAME_LEN + 40)) 12 "${EXCLUDE_MENU[@]}" 3>&1 1>&2 2>&3)
[ $? -ne 0 ] && exit
read -ra EXCLUDED <<<$(echo "$excluded_containers_raw" | tr -d '"')
TO_START=()
if [ ${#STOPPED_MENU[@]} -gt 0 ]; then
selected=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
--title "Stopped LXC Containers" \
--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" \
16 $((MAX_NAME_LEN + 40)) 8 "${STOPPED_MENU[@]}" 3>&1 1>&2 2>&3)
[ $? -ne 0 ] && exit
read -ra TO_START <<<$(echo "$selected" | tr -d '"')
fi
declare -A WAS_STOPPED
for ct in "${TO_START[@]}"; do
WAS_STOPPED["$ct"]=1
done
function trim_container() {
local container="$1"
header_info
echo -e "${BL}[Info]${GN} Trimming ${BL}$container${CL} \n"
local before_trim after_trim
before_trim=$(lvs --noheadings -o lv_name,data_percent | awk -v ctid="vm-${container}-disk-0" '$1 == ctid {gsub(/%/, "", $2); print $2}')
echo -e "${RD}Data before trim $before_trim%${CL}"
pct fstrim "$container"
after_trim=$(lvs --noheadings -o lv_name,data_percent | awk -v ctid="vm-${container}-disk-0" '$1 == ctid {gsub(/%/, "", $2); print $2}')
echo -e "${GN}Data after trim $after_trim%${CL}"
sleep 0.5
}
for container in $(pct list | awk 'NR>1 {print $1}'); do
if [[ " ${EXCLUDED[*]} " =~ " $container " ]]; then
header_info
echo -e "${BL}[Info]${GN} Skipping $container (excluded)${CL}"
sleep 0.5
continue
fi
if pct config "$container" | grep -q "template:"; then
header_info
echo -e "${BL}[Info]${GN} Skipping $container (template)${CL}\n"
sleep 0.5
continue
fi
STATUS=$(pct list | awk -v id="$container" '$1==id{print $2}')
if [[ "$STATUS" != "running" ]]; then
if [[ -n "${WAS_STOPPED[$container]:-}" ]]; then
header_info
echo -e "${BL}[Info]${GN} Starting $container for trim...${CL}"
pct start "$container"
sleep 2
else
header_info
echo -e "${BL}[Info]${GN} Skipping $container (not running, not selected)${CL}"
sleep 0.5
continue
fi
fi
trim_container "$container"
if [[ -n "${WAS_STOPPED[$container]:-}" ]]; then
if whiptail --backtitle "Proxmox VE Helper Scripts" \
--title "Stop container again?" \
--yesno "Container $container was started for the trim operation.\n\nDo you want to stop it again now?" 10 60; then
header_info
echo -e "${BL}[Info]${GN} Stopping $container again...${CL}"
pct stop "$container"
sleep 1
else
header_info
echo -e "${BL}[Info]${GN} Leaving $container running as requested.${CL}"
sleep 1
fi
fi
done
header_info
echo -e "${GN}Finished, LXC Containers Trimmed.${CL} \n"
exit 0