Your Name
127 lines
3.5 KiB
Bash
Executable File
127 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# POS: system backup — Encrypted (AES-256) folder snapshots (tar + gpg)
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# POS_FLAGS: --service
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# POS_CONFIG: notify | notify.env | NOTIFY_PLATFORM=:Comma-separated notify platforms (default telegram) — shared by backup, firewall, nfs-client and nfs-server
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source "$(dirname "$0")/../lib/common.sh" 2>/dev/null || source "$(dirname "$0")/common.sh"
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source "$(dirname "$0")/../lib/notify.sh" 2>/dev/null || source "$(dirname "$0")/notify.sh"
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load_system_env
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EFF_ROOTS="${BACKUP_SERVICE_ROOTS:-/srv $HOME/srv}"
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trap 'notify_send "Backup FAILED: ${FOLDER:-unknown}"' ERR
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usage() {
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cat <<EOF
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Usage: pos system backup <folder-path>
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pos system backup --service
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Create a gpg-encrypted (AES-256) tar.gz snapshot of a folder and verify it.
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The archive password is prompted twice and never stored.
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Modes:
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<folder-path> Back up that folder directly.
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--service List folders under /srv and ~/srv, pick one, back it up.
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The final artifact <name>_<date>.tar.gz.gpg is written to the current directory.
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Environment:
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BACKUP_SERVICE_ROOTS Space-separated roots for --service
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(effective: ${EFF_ROOTS})
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(loaded from ~/.config/linux_post_install/system.env unless exported)
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EOF
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exit 0
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}
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command -v tar &>/dev/null || err "tar not found"
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command -v gpg &>/dev/null || err "gpg not found (install gnupg)"
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SERVICE=0
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case "${1:-}" in
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-h|--help) usage ;;
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--service) SERVICE=1 ;;
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"") err "Missing folder path (or use --service)" ;;
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*) FOLDER="$1" ;;
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esac
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if [ "$SERVICE" -eq 1 ]; then
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if [ -n "${BACKUP_SERVICE_ROOTS:-}" ]; then
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read -r -a roots <<< "$BACKUP_SERVICE_ROOTS"
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else
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roots=(/srv "$HOME/srv")
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fi
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idx=0
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for root in "${roots[@]}"; do
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[ -d "$root" ] || { warn "Root not found: $root"; continue; }
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dirs=()
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while IFS= read -r d; do
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dirs+=("$d")
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done < <(find "$root" -maxdepth 1 -mindepth 1 -type d | sort)
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[ ${#dirs[@]} -gt 0 ] || { warn "No folders in $root"; continue; }
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echo
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echo "${root}:"
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for d in "${dirs[@]}"; do
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idx=$((idx + 1))
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names[$idx]="$d"
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printf "%2d) %s\n" "$idx" "$d"
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done
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done
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[ "$idx" -gt 0 ] || err "No folders found under: ${roots[*]}"
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read -rp "Select folder number: " choice
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if ! [[ "$choice" =~ ^[0-9]+$ ]] || (( choice < 1 || choice > idx )); then
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err "Invalid selection: $choice"
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fi
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FOLDER="${names[$choice]}"
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fi
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[ -d "$FOLDER" ] || err "Folder not found: $FOLDER"
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NAME="$(basename "$FOLDER")"
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DATE="$(date +%Y-%m-%d_%H-%M-%S)"
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ARCHIVE="${NAME}_${DATE}.tar.gz"
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echo
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log "Creating backup..."
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echo "Source : $FOLDER"
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echo "Output : $ARCHIVE"
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sudo tar -czvf "$ARCHIVE" -C "$(dirname "$FOLDER")" "$NAME"
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log "Verifying archive..."
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tar -tzf "$ARCHIVE" > /dev/null
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log "Archive verified"
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while true; do
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read -s -rp "Enter backup password: " PASS
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echo
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read -s -rp "Confirm backup password: " CONFIRM
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echo
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if [ -n "$PASS" ] && [ "$PASS" = "$CONFIRM" ]; then
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break
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fi
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warn "Passwords are empty or do not match — try again"
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done
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unset CONFIRM
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log "Encrypting backup..."
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gpg --batch --yes --passphrase "$PASS" --symmetric --cipher-algo AES256 "$ARCHIVE"
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rm -f "$ARCHIVE"
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ARCHIVE="${ARCHIVE}.gpg"
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chmod 600 "$ARCHIVE"
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log "Verifying encrypted backup..."
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gpg --batch --quiet --passphrase "$PASS" --decrypt "$ARCHIVE" | tar -tzf - > /dev/null
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unset PASS
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echo
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log "Backup completed: $ARCHIVE"
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notify_send "Backup completed: $ARCHIVE"
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