=head1 bak-git
-Simpliest possible backup from remote host (with natcat as
-only depenency) to ad-hoc remote server
+Simple tracking of remote files in central git repository
+with only shell, netcat, rsync and ssh on client
-Install on client with:
+Start server, install on remote-host or upgrade with:
- echo install | nc 127.0.0.1 9001 > bak ; chmod 755 bak
-
-Start server with:
-
- ./server.pl /path/to/backup 127.0.0.1
+ ./bak-git-server.pl /path/to/backup 192.168.42.42
+ [--install remote-host]
+ [--upgrade]
You will want to add following to C<~/.ssh/config>
use File::Path;
use Getopt::Long;
-my $install = 0;
+my $upgrade = 0;
+my $install;
+
GetOptions(
- 'install!' => \$install,
+ 'upgrade!' => \$upgrade,
+ 'install=s' => \$install,
) || die "$!\n";
my ( $dir, $server_ip ) = @ARGV;
chdir $dir;
system 'git init' unless -e '.git';
-if ( $install ) {
+if ( $upgrade || $install ) {
open(my $fh, '>', '/tmp/bak');
print $fh $shell_client;
close($fh);
+ chmod 0755, '/tmp/bak';
- foreach my $hostname ( glob '*' ) {
+ my @hosts = grep { -d $_ } glob '*';
+ @hosts = ( $install ) if $install;
+
+ foreach my $hostname ( @hosts ) {
warn "install on $hostname\n";
+ system 'ssh-copy-id', "root\@$hostname" if ! -d $hostname;
system "scp /tmp/bak root\@$hostname:/usr/local/bin/";
+ system "ssh root\@$hostname apt-get install rsync";
}
}
warn "dir: $dir listen: $server_ip:9001\n"
- , "remote-host> echo install | nc $server_ip 9001 > bak ; chmod 755 bak\n"
, $shell_client
;
while (my $client = $server->accept()) {
my ($hostname,$pwd,$command,$path,$message) = split(/\s+/,<$client>,5);
- if ( $pwd eq 'install' ) {
- warn "install on $hostname\n";
- print $client $shell_client;
- close($client);
- system 'ssh-copy-id', "root\@$hostname" if ! -d $hostname;
- next;
- }
-
$message ||= '';
$path = "$pwd/$path" unless $path =~ m{^/};