proxmox_backup.sh

proxmox_backup.sh

#!/bin/bash

# Configuration
NFS_SERVER="x.x.x.x" # Replace with your nfs server ip
NFS_SHARE="/volume1/backup-vm"
MOUNT_POINT="/mnt/proxmox-backup"
STORAGE_ID="syn"
LOG_FILE="/var/log/proxmox_backup.log"
DATE=$(date +"%Y-%m-%d")
BACKUP_DIR="$MOUNT_POINT/servername" # Replace with your server name
EMAIL="email"           # Replace with your email address
SUBJECT="Proxmox Backup Report - $(date +%Y-%m-%d)" 
BACKUP_RETENTION=3                 

# Function to log messages
log_message() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> $LOG_FILE
}

# Function to send email
send_email() {
    local body="$1"
    cat "$LOG_FILE" | mail -s "$SUBJECT" "$EMAIL"
}

# Clear the log file
> $LOG_FILE


# Create mount point if it doesn't exist
mkdir -p $MOUNT_POINT

# Mount the NFS share
log_message "Mounting NFS share..."
mount -t nfs -o rw,nosuid,noexec $NFS_SERVER:$NFS_SHARE $MOUNT_POINT

if [ $? -ne 0 ]; then
    log_message "Failed to mount NFS share. Exiting."
    send_email "Failed to mount NFS share. Backup process aborted."
    exit 1
fi

# Create backup directory if it doesn't exist
mkdir -p $BACKUP_DIR

# Backup all VMs
log_message "Starting VM backups..."
for VM in $(/usr/sbin/qm list | awk '{if(NR>1) print $1}')
do
    log_message "Backing up VM $VM..."
    vzdump $VM --mode snapshot --compress zstd --dumpdir $BACKUP_DIR >> $LOG_FILE 2>&1
    if [ $? -ne 0 ]; then
        log_message "Failed to backup VM $VM."
    else
        log_message "Successfully backed up VM $VM."
    fi

    # Clean up old backups for this VM (keep only the last 3)
    log_message "Cleaning up old backups for VM $VM..."
    ls -t $BACKUP_DIR/vzdump-qemu-$VM-*.vma.zst | tail -n +$(($BACKUP_RETENTION + 1)) | xargs rm -f
done

# Backup all containers
log_message "Starting container backups..."
for CT in $(/usr/sbin/pct list | awk '{if(NR>1) print $1}')
do
    log_message "Backing up container $CT..."
    vzdump $CT --mode snapshot --compress zstd --dumpdir $BACKUP_DIR >> $LOG_FILE 2>&1
    if [ $? -ne 0 ]; then
        log_message "Failed to backup container $CT."
    else
        log_message "Successfully backed up container $CT."
    fi

    # Clean up old backups for this container (keep only the last 3)
    log_message "Cleaning up old backups for container $CT..."
    ls -t $BACKUP_DIR/vzdump-lxc-$CT-*.tar.zst | tail -n +$(($BACKUP_RETENTION + 1)) | xargs rm -f
done

# Unmount the NFS share
log_message "Unmounting NFS share..."
umount $MOUNT_POINT
if [ $? -ne 0 ]; then
    log_message "Failed to unmount NFS share."
    send_email "Backup process completed with errors. Failed to unmount NFS share."
    exit 1
fi

# Send email report
log_message "Backup process completed successfully."
send_email "Backup process completed successfully. Logs attached." < $LOG_FILE
exit 0