78 lines
2.1 KiB
Bash
78 lines
2.1 KiB
Bash
#!/bin/bash
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# Enable strict error handling
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set -euo pipefail
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trap 'handle_error $? $LINENO' ERR
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# Configuration
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BACKUP_SCRIPT="/home/litespeed/mb-backups/backup_all.sh"
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LOG_DIR="/home/litespeed/mb-backups/logs/auto"
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ACTION_LOG_FILE="${LOG_DIR}/schedule_actions.log"
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BACKUP_LOG_PREFIX="${LOG_DIR}/backup_"
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PASSWORD_FILE="/etc/restic-password"
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LOCK_FILE="/tmp/backup_schedule.lock"
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SCHEDULE="0 0 * * *" # Default to daily at midnight
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# Error handling function
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handle_error() {
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local exit_code=$1
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local line_no=$2
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log_action "ERROR: Command failed at line ${line_no} with exit code ${exit_code}"
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cleanup_and_exit 1
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}
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# Cleanup function
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cleanup_and_exit() {
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local exit_code=$1
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[ -f "$LOCK_FILE" ] && rm -f "$LOCK_FILE"
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exit "${exit_code}"
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}
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# Ensure single instance
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ensure_single_instance() {
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if [ -f "$LOCK_FILE" ]; then
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if kill -0 "$(cat "$LOCK_FILE")" 2>/dev/null; then
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log_action "ERROR: Another instance is running"
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exit 1
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fi
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fi
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echo $$ > "$LOCK_FILE"
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}
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# Logging function
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log_action() {
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local timestamp=$(date +'%Y-%m-%d %H:%M:%S')
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echo "[$timestamp] $1" | tee -a "$ACTION_LOG_FILE"
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}
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# Function to configure the cron job
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configure_cron_job() {
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if [ ! -f "$PASSWORD_FILE" ]; then
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log_action "ERROR: Restic password file not found"
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return 1
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fi
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local restic_password
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restic_password=$(cat "$PASSWORD_FILE")
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local cmd="RESTIC_PASSWORD='$restic_password' LOG_FILE='${BACKUP_LOG_PREFIX}\$(date +\%Y-\%m-\%d_\%H-\%M-\%S).log' $BACKUP_SCRIPT > \"\$LOG_FILE\" 2>&1 || echo \"\$(date) Backup failed\" >> \"$ACTION_LOG_FILE\""
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log_action "Adding cron job with schedule: $SCHEDULE and command: $cmd"
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# Update the cron job
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(crontab -l 2>/dev/null | grep -v "$BACKUP_SCRIPT"; echo "$SCHEDULE $cmd") | crontab -
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log_action "Scheduled daily backup at midnight with command: $cmd"
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}
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# Main execution
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main() {
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log_action "Starting manage_backup_schedule.sh"
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mkdir -p "$LOG_DIR"
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chmod 750 "$LOG_DIR"
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ensure_single_instance
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configure_cron_job
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cleanup_and_exit 0
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}
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# Execute main function with all arguments
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main "$@" |