Backup CheckMK site via OMD command

omd-backup.sh

#!/bin/bash

# =============================================================================
# OMD Backup Script
# =============================================================================

PROGNAME=$(basename "$0")
FILEDATE=$(date '+%Y%m%d')

# --- Site Configuration ------------------------------------------------------

OMD_SITE="prod"

# Local backup settings
LOCAL_BACKUP_DIR="/root/omd_backup"
BACKUP_RETENTION_DAYS=7

# Notification settings
NOTIFY_EMAIL="support@company.com"
NOTIFY_SUBJECT_ERROR="OMD Backup Error!"
NOTIFY_SUBJECT_SUCCESS="OMD Backup Complete!"

# Derived values (do not edit)
BACKUP_FILENAME="omd_${OMD_SITE}_backup-${FILEDATE}.tgz"
BACKUP_PATH="${LOCAL_BACKUP_DIR}/${BACKUP_FILENAME}"

# =============================================================================

error_exit() {
    local msg="${PROGNAME}: ${1:-"Unknown Error"}"
    echo "$msg" >&2
    /usr/bin/logger "$msg"
    #mail -s "$NOTIFY_SUBJECT_ERROR" "$NOTIFY_EMAIL" <<< "$msg"
    exit 1
}

# Stop OMD site
cmd=$(omd stop "$OMD_SITE" 2>&1) \
    || error_exit "Error on line $LINENO stopping site '$OMD_SITE': $cmd"

# Perform backup
cmd=$(omd backup "$OMD_SITE" "$BACKUP_PATH" 2>&1) \
    || error_exit "Error on line $LINENO creating backup: $cmd"

# Restart OMD site
cmd=$(omd start "$OMD_SITE" 2>&1) \
    || error_exit "Error on line $LINENO starting site '$OMD_SITE': $cmd"

# Purge local backups older than retention period
cmd=$(find "$LOCAL_BACKUP_DIR" -mindepth 1 -mtime "+${BACKUP_RETENTION_DAYS}" -delete 2>&1) \
    || error_exit "Error on line $LINENO purging old backups: $cmd"

/usr/bin/logger "OMD backup complete! Backup: $BACKUP_FILENAME"
#mail -s "$NOTIFY_SUBJECT_SUCCESS" "$NOTIFY_EMAIL" <<< "OMD backup complete! File: $BACKUP_FILENAME"