david/sshbackup
david
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sshbackup
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working..

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david 2012-12-20 16:31:35 +01:00
parent 1b352ad946
commit 9a81086777
2 changed files with 41 additions and 71 deletions
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33
deploy.sh
View File

@ -3,11 +3,12 @@
# deploy remote config
# sshbackup
# basic config parameters
backupuser="sshbackup"
publickey="/home/david/.ssh/id_rsa.pub"
publickey=$(cat $publickey)
# ask if to continue when run as root
if [ $USER == "root" ]; then
echo "there is no need to run this script with root privileges."
echo "however, it is possible if you wish to do so anyway."
@ -21,7 +22,7 @@ if [ $USER == "root" ]; then
fi
answer=""
echo -e "choose user you want to connect with [$USER]: \c"
echo -e "remote admin [$USER]: \c"
read answer
if [ -z $answer ]; then
remoteadmin=$USER
@ -30,7 +31,7 @@ else
fi
answer=""
echo -e "choose user which should be created on remote system [$backupuser]: \c"
echo -e "backupuser [$backupuser]: \c"
read answer
if [ -z $answer ]; then
:
@ -41,7 +42,7 @@ answer=""
while [ -z $remotemachine ]; do
if [ -z $1 ]; then
echo -e "remote machine was not provided. please choose remote ip or hostname: \c"
echo -e "remote ip or hostname: \c"
read answer
remotemachine=$answer
else
@ -51,25 +52,17 @@ done
answer=""
echo ""
echo "remoteadmin: $remoteadmin"
echo "backupuser: $backupuser"
echo "remotemachine: $remotemachine"
echo ""
#connecting to remote machine and running following script
ssh -t $remoteadmin@$remotemachine echo '#!/bin/bash
cat /etc/passwd | grep -e ^'$backupuser'
cat /etc/passwd | grep -e ^$backupuser
if [ \$? -eq 0 ]; then
echo "error: '$backupuser' already exists on '$remotemachine'"
echo "error: $backupuser already exists on $remotemachine"
echo "info: aborting mission."
exit 1
else
echo "info: attempting to create user: '$backupuser'"
useradd -m -d /home/'$backupuser' '$backupuser'
echo "info: attempting to create user: $backupuser"
useradd -m -d /home/$backupuser $backupuser
if [ \$? -eq 0 ]; then
mkdir /home/'$backupuser'/.ssh
echo '$publickey' >> /home/'$backupuser'/.ssh/authorized_keys
mkdir /home/$backupuser/.ssh
echo $publickey >> /home/$backupuser/.ssh/authorized_keys
if [ \$? -eq 0 ]; then
echo "info: user created and public key added to authorized hosts."
else
@ -81,7 +74,5 @@ else
fi
fi
exit' > sshconfig.sh; chmod +x sshconfig.sh; sudo ./sshconfig.sh
exit

79
sshbackup.sh
View File

@ -21,13 +21,13 @@ localcmd="/usr/bin/rsync"
#where should i write the log file?
logfile="/var/log/sshbackup.log"
sourcefile="/etc/sshbackup.lst"
#sourcefile="/etc/sshbackup.lst"
sshkeyfile="$HOME/.ssh/id_rsa"
# **** function definitions ****
#bashtrap will be executed when CTRL+C is pressed
bashtrap()
{
@ -38,24 +38,19 @@ bashtrap()
}
#prints the usage message
usage()
{
echo
echo "usage: sshbackup <options> <sourcefile>"
echo "usage: sshbackup <options>"
echo
echo "OPTIONS:"
echo " -c, --config <config file> configuration file"
echo " -d, --deploy <remote host> deploy remote configuration"
echo " -i, --install run initial configuration"
echo " -h, --help show this message"
echo " -v, --version show version information"
echo
}
#prints version information
version()
{
@ -68,67 +63,47 @@ version()
}
#checks for necessary root privileges
amiroot()
{
if [ "$USER" != "root" ]; then
return 1
else
return 0
fi
}
local user=$(whoami)
if [ "$(whoami)" != "root" ]; then
echo "error: $USER, you need to gain root privileges. exiting."
preflight()
{
if [ -r $sshkeyfile ]; then
:
else
echo "error: ssh keyfile not found in $sshkeyfile. aborting mission."
exit 1
fi
}
#checking local configuration
# - am i root?
# - do i have a useable ssh keypair -> if not abort mission and send notification
deploy()
{
#deploy local config (initial installation)
# - the sshbackup script must be run by root on the local "backup" machine
# - root must have a ssh keypair without passphrase to connect to remote machines
#ssh-keygen
#deploy config to remote machine (needs a remote user which is sudoer)
# - there must be a backup user on the remote system
# - this backup user must have permissions to run rsync as root (sudoers)
#backupuser ALL=(root)NOPASSWD: /usr/bin/rsync
# - in case there is a group a ssh user must be in the backup user needs to be added
# - in our case there is sometimes a "sshusers" group
#sending mail notification
# - where should i get mail config from?
}
#pulling files through ssh (actual backup process)
sshbackup()
{
#root privileges needed because
#rsync wouldn't keep file permissions
#without root privileges
amiroot
#parameter $1 is the sources file
local sourcefile=$1
#checking if ssh key is available
if [ -z $sshkeyfile ]; then
sshkeyfile="$HOME/.ssh/id_rsa"
fi
if [ -r $sshkeyfile ]; then
:
else
echo "error: ssh keyfile not found in $sshkeyfile. exiting."
if [ $(amiroot; echo $?) -ne 0 ]; then
echo "error: this script must be run with root privileges. aborting mission."
exit 1
fi
preflight
local sourcefile=$1
# reading sources config file (line by line)
while read line; do
@ -186,6 +161,10 @@ sshbackup()
#create connectionstring
local constring="$server:$sourcepath"
#get the MB to transfer
#test=$(($(rsync -vrl --no-motd --dry-run --stats david@10.1.2.4:/srv/storage/david/videos /home/david/ | grep "Total transferred file size" | awk '{print $5}' | grep -e '[0-9]')/1000000))
#run rsync
echo "[$(date '+%Y%m%d%H%M')] starting rsync job: $server:$sourcepath" >> $logfile
$localcmd $cmdopt -e "ssh -q -i $sshkeyfile" --rsync-path="$remotecmd" $constring $destpath/0