install and src scripts added

Author: dmitreiro

install.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# ensure the script is run as root
+if [[ "$EUID" -ne 0 ]]; then
+    echo "Error: This script must be run as root!"
+    exit 1
+fi
+
+# ensure systemd is available
+if ! command -v systemctl &> /dev/null; then
+    echo "Error: systemd is not available on this system."
+    exit 1
+fi
+
+echo "Starting system-backup installation..."
+
+# creating configuration file
+echo "Copying config file to /etc/system-backup/config.conf..."
+mkdir -p /etc/system-backup
+cp src/config.conf /etc/system-backup/config.conf
+chmod 600 /etc/system-backup/config.conf
+
+# copy main script
+echo "Copying main script to /usr/local/bin/system-backup.sh..."
+cp src/system-backup.sh /usr/local/bin/system-backup.sh
+chmod +x /usr/local/bin/system-backup.sh
+
+# setting up systemd service
+echo "Copying systemd service and timer files and setting up deamon..."
+cp src/openvpn-notify.service /etc/systemd/system/system-backup.service
+cp src/openvpn-notify.timer /etc/systemd/system/system-backup.timer
+systemctl daemon-reload
+systemctl enable system-backup
+systemctl start system-backup
+
+# successful exit
+echo "system-backup installation finished!"
+exit 0

src/config.conf

@@ -0,0 +1,2 @@
+BOT_TOKEN="your_bot_token_here"
+CHAT_ID="your_chat_id_here"

src/system-backup.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=System Backup Process
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/system-backup.sh
+User=root
+Group=root
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target

src/system-backup.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+BACKUP_DIR="/mnt/backup"
+TIMESTAMP=$(date +"%Y-%m-%d_%H-%M")
+DEST="$BACKUP_DIR/sys_backup_$TIMESTAMP"
+CONFIG_FILE="/etc/system-backup/config.conf"
+
+# load config file
+if [[ ! -f "$CONFIG_FILE" ]]; then
+    echo "Config file $CONFIG_FILE not found! Retrying in 30 seconds..." | systemd-cat -t system-backup -p err
+    exit 1
+fi
+
+# load telegram credentials
+source "$CONFIG_FILE"
+
+# sending telegram notification
+telegram_message() {
+    local MESSAGE="$1"
+    local URL="https://api.telegram.org/bot${BOT_TOKEN}/sendMessage"
+
+    RESPONSE=$(curl -s -X POST "$URL" -d chat_id="$CHAT_ID" -d text="$MESSAGE")
+    if [[ "$RESPONSE" != *"\"ok\":true"* ]]; then
+        echo "Failed to send Telegram message: $RESPONSE" | systemd-cat -t system-backup -p err
+    fi
+}
+
+# send telegram notification
+telegram_message "Starting system backup at $DEST"
+
+# rotate backups: keep only the most recent
+cd "$BACKUP_DIR"
+ls -dt sys_backup_* | tail -n +2 | xargs -d '\n' rm -rf --
+
+# new backup folder
+mkdir -p "$DEST"
+
+# rsync backup
+rsync -aAXv / \
+  --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found","/swapfile"} \
+  "$DEST" > /dev/null
+
+if [ $? -ne 0 ]; then
+  echo "System backup FAILED" | systemd-cat -t system-backup -p err
+  telegram_message "System backup FAILED"
+  exit 1
+fi
+
+# send telegram notification
+telegram_message "System backup completed"
+
+exit 0

src/system-backup.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=System backup every week on Sunday at 4:00 AM
+
+[Timer]
+OnCalendar=Sun 04:00
+Persistent=true
+
+[Install]
+WantedBy=timers.target