init
This commit is contained in:
Tommy Parnell
179
backup-email-server.sh
Executable file
179
backup-email-server.sh
Executable file
@@ -0,0 +1,179 @@
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#!/bin/bash
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# Email Server Backup Script
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# Creates backups of email server configuration and data
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set -euo pipefail
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# Configuration
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BACKUP_DIR="/var/backups/email-server"
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DATE=$(date +%Y%m%d_%H%M%S)
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BACKUP_NAME="email-backup-$DATE"
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RETENTION_DAYS=30
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# Colors
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m'
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log() {
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echo "$(date '+%Y-%m-%d %H:%M:%S') - $1"
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}
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info() {
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echo -e "${BLUE}INFO: $1${NC}"
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log "INFO: $1"
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}
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success() {
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echo -e "${GREEN}SUCCESS: $1${NC}"
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log "SUCCESS: $1"
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}
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error() {
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echo -e "${RED}ERROR: $1${NC}" >&2
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log "ERROR: $1"
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exit 1
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}
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# Create backup directory
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create_backup_dir() {
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info "Creating backup directory..."
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mkdir -p "$BACKUP_DIR/$BACKUP_NAME"
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}
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# Backup PostgreSQL database
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backup_database() {
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info "Backing up PostgreSQL database..."
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sudo -u postgres pg_dump postfix > "$BACKUP_DIR/$BACKUP_NAME/postfix_db.sql"
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success "Database backup completed"
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}
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# Backup configuration files
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backup_configs() {
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info "Backing up configuration files..."
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# Postfix
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cp -r /etc/postfix "$BACKUP_DIR/$BACKUP_NAME/"
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# Dovecot
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cp -r /etc/dovecot "$BACKUP_DIR/$BACKUP_NAME/"
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# Amavis
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cp -r /etc/amavis "$BACKUP_DIR/$BACKUP_NAME/"
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# OpenDKIM
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cp -r /etc/opendkim "$BACKUP_DIR/$BACKUP_NAME/"
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# SpamAssassin
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cp -r /etc/spamassassin "$BACKUP_DIR/$BACKUP_NAME/"
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# PostfixAdmin
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if [[ -d "/var/www/postfixadmin" ]]; then
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cp -r /var/www/postfixadmin "$BACKUP_DIR/$BACKUP_NAME/"
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fi
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# Apache configuration
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cp -r /etc/apache2/sites-available "$BACKUP_DIR/$BACKUP_NAME/apache2-sites/"
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success "Configuration backup completed"
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}
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# Backup SSL certificates
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backup_ssl() {
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info "Backing up SSL certificates..."
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if [[ -d "/etc/letsencrypt" ]]; then
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cp -r /etc/letsencrypt "$BACKUP_DIR/$BACKUP_NAME/"
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success "SSL certificates backup completed"
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else
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info "No SSL certificates found to backup"
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fi
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}
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# Backup mail data (optional - can be large)
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backup_mail_data() {
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if [[ "${1:-}" == "--include-mail" ]]; then
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info "Backing up mail data (this may take a while)..."
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if [[ -d "/var/mail/vhosts" ]]; then
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tar -czf "$BACKUP_DIR/$BACKUP_NAME/mail_data.tar.gz" -C /var/mail vhosts
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success "Mail data backup completed"
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else
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info "No mail data found to backup"
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fi
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else
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info "Skipping mail data backup (use --include-mail to include)"
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fi
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}
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# Create compressed archive
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create_archive() {
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info "Creating compressed archive..."
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cd "$BACKUP_DIR"
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tar -czf "$BACKUP_NAME.tar.gz" "$BACKUP_NAME"
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rm -rf "$BACKUP_NAME"
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success "Archive created: $BACKUP_DIR/$BACKUP_NAME.tar.gz"
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}
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# Cleanup old backups
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cleanup_old_backups() {
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info "Cleaning up backups older than $RETENTION_DAYS days..."
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find "$BACKUP_DIR" -name "email-backup-*.tar.gz" -mtime +$RETENTION_DAYS -delete
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success "Old backups cleaned up"
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}
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# Display backup information
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show_backup_info() {
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echo
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echo -e "${GREEN}Backup completed successfully!${NC}"
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echo "Backup location: $BACKUP_DIR/$BACKUP_NAME.tar.gz"
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echo "Backup size: $(du -h "$BACKUP_DIR/$BACKUP_NAME.tar.gz" | cut -f1)"
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echo
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echo "To restore this backup:"
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echo "1. Extract: tar -xzf $BACKUP_NAME.tar.gz"
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echo "2. Stop services: systemctl stop postfix dovecot amavis apache2"
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echo "3. Restore configurations to their original locations"
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echo "4. Restore database: sudo -u postgres psql postfix < postfix_db.sql"
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echo "5. Restart services: systemctl start postfix dovecot amavis apache2"
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}
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# Main function
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main() {
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echo -e "${BLUE}Email Server Backup Script${NC}"
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echo "=========================="
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echo
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# Check if running as root
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if [[ $EUID -ne 0 ]]; then
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error "This script must be run as root"
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fi
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create_backup_dir
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backup_database
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backup_configs
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backup_ssl
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backup_mail_data "$@"
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create_archive
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cleanup_old_backups
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show_backup_info
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}
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# Show usage if help requested
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if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
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echo "Usage: $0 [--include-mail]"
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echo
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echo "Options:"
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echo " --include-mail Include mail data in backup (can be large)"
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echo " --help, -h Show this help message"
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echo
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echo "This script backs up:"
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echo " - PostgreSQL database"
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echo " - Configuration files (Postfix, Dovecot, Amavis, OpenDKIM, etc.)"
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echo " - SSL certificates"
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echo " - PostfixAdmin installation"
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echo " - Mail data (if --include-mail is specified)"
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exit 0
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fi
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main "$@"
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