Initial commit

BackupServerConfig.sh

@@ -0,0 +1,98 @@
+#!/bin/bash
+
+##############################################################
+#
+# This script saves the main config directories and (if
+# activated) saves them on the central syslog server.
+#
+# Hostname, additional folders and the syslog setting can be
+# set in the config file '/etc/default/BackupServerConfig'.
+#
+##############################################################
+
+set -ou pipefail
+
+###########################################################
+# Global systemd/journald Functions
+###########################################################
+
+function INFO {
+	echo "$1"
+	echo "$1" | systemd-cat -p info -t "$(basename "$0" .sh)"
+}
+
+function WARNING {
+	echo "WARNING: $1" >&2
+	echo "$1" | systemd-cat -p warning -t "$(basename "$0" .sh)"
+}
+
+function ERROR {
+	echo "ERROR: $1" >&2
+	echo "$1" | systemd-cat -p err -t "$(basename "$0" .sh)"
+}
+
+###########################################################
+
+if [[ -r /etc/default/BackupServerConfig ]]; then
+    source /etc/default/BackupServerConfig
+fi
+
+BACKUP_PATH=/var/backups
+BACKUP_FILE="$(hostname -f).tar"
+BACKUP_HOSTNAME=${BACKUP_HOSTNAME:-}
+BACKUP_OBJ=${BACKUP_OBJ:-}
+FTPHOST=${FTPHOST:-}
+
+INFO "BackupServerConfig started..."
+
+if [[ -n $BACKUP_HOSTNAME ]]; then
+	BACKUP_FILE="$BACKUP_HOSTNAME.tar"
+fi
+
+INSTALLEDPACKAGES=$(mktemp)
+dpkg --get-selections > "$INSTALLEDPACKAGES"
+
+cd /tmp/ || exit 1
+tar -cPf "$BACKUP_FILE" /etc
+tar -rPf "$BACKUP_FILE" /root/.bashrc
+tar -rPf "$BACKUP_FILE" /root/.ssh
+tar -rPf "$BACKUP_FILE" --transform "s|$INSTALLEDPACKAGES|/installed_packages.txt|" "$INSTALLEDPACKAGES"
+if [[ -n $BACKUP_OBJ ]]; then
+	for BO in $BACKUP_OBJ; do
+		tar --exclude=".git" -rPf "$BACKUP_FILE" "$BO"
+	done
+fi
+gzip -9 -f "$BACKUP_FILE" && mv -f "$BACKUP_FILE.gz" $BACKUP_PATH
+rm -f "$INSTALLEDPACKAGES"
+
+if [[ -n "$FTPHOST" ]]; then
+	if [[ -z "$GPGKEY" ]]; then
+		ERROR "GPG key required for ftp server backup. Remote ftp backup aborted!"
+		exit 1
+	fi
+	if [[ -z "$FTPDIR" ]]; then
+		ERROR "FTP subdirectory required for ftp server backup. Remote ftp backup aborted!"
+		exit 1
+	fi
+	TMP=$(gpg --list-keys --with-colons | grep "$GPGKEY")
+	if [[ -z "$TMP" ]]; then
+		ERROR "Public key for encryption of server configuration data not found. Remote ftp backup aborted!"
+		exit 1
+	fi
+
+	cd $BACKUP_PATH || exit 1
+	rm -f "$BACKUP_FILE.gz.gpg"
+	gpg --encrypt -r "$GPGKEY" --trusted-key "$GPGKEY" "$BACKUP_FILE.gz"
+
+	ftp -p -n "$FTPHOST" <<EOI
+quote USER anonymous
+quote PASS anonymous@anonymous.com
+cd $FTPDIR
+put "$BACKUP_FILE.gz.gpg"
+quit
+EOI
+fi
+
+INFO "BackupServerConfig successful"
+
+exit 0