81 lines
2.1 KiB
Bash
81 lines
2.1 KiB
Bash
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#!/usr/bin/env bash
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# backup.sh
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#
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# Copyright (C) 2019 Christian Ulrich
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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SERVER_MAC_ADDRESS=40:61:86:32:f8:c3
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SERVER_STAGE1_IP=10.0.0.19
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SERVER_STAGE1_PORT=2222
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SERVER_STAGE1_USERNAME=root
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SERVER_IP="$SERVER_STAGE1_IP"
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SERVER_PORT=22
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SERVER_USERNAME=luno
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SSH_IDENTITY_FILE=~/.ssh/id_rsa
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DIRECTORIES=("/data" "/etc/nixos" "/var/lib/matrix-synapse" "/var/lib/postgresql" "/var/lib/prosody")
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function cleanup {
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ssh-add -d $SSH_IDENTITY_FILE
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kill $SSH_AGENT_PID
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}
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function wakeup_server {
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wakelan $SERVER_MAC_ADDRESS
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}
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function wait_for_server {
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local ip="$1"
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local port="$2"
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echo "Waiting for $1:$2 ..."
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while true; do
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nc -z $ip $port 2>/dev/null && break
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done
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}
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function init_server {
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eval $(ssh-agent) 1>/dev/null
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ssh-add $SSH_IDENTITY_FILE
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wait_for_server $SERVER_STAGE1_IP $SERVER_STAGE1_PORT || return 1
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ssh -l $SERVER_STAGE1_USERNAME -p $SERVER_STAGE1_PORT $SERVER_STAGE1_IP -t 'cryptsetup-askpass'
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wait_for_server $SERVER_IP $SERVER_PORT || return 2
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}
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function shutdown_server {
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echo "Trying to shutdown server."
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ssh -l $SERVER_USERNAME -p $SERVER_PORT $SERVER_IP 'sudo shutdown -h now'
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}
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function do_backup {
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echo "Starting backup..."
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rsync -avR --no-inc-recursive --info=progress2 --delete -e "ssh -p $SERVER_PORT" "${DIRECTORIES[@]}" $SERVER_USERNAME@$SERVER_IP:
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if [ $? -eq 0 ]; then
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echo "Backup successful!"
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fi
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}
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function main {
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wakeup_server
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init_server
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if [ $? -eq 0 ]; then
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do_backup
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fi
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shutdown_server
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cleanup
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}
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main
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