Re: Generic Broadcast SSH Launcher

[mcrose]

It looks like you're reinventing a wheel. https://metacpan.org/module/SALVA/Net-OpenSSH-0.60/lib/Net/OpenSSH.pm

open my $stderr_fh, '>>', '/tmp/$host.err' or die ...;
open my $stdout_fh, '>>', '/tmp/$host.log' or die ...;
 
my $ssh = Net::OpenSSH->new($host, default_stderr_fh => $stderr_fh,
                                   default_stdout_fh => $stdout_fh);
$ssh->error and die "SSH connection failed: " . $ssh->error;
 
$ssh->scp_put("/foo/bar*", "/tmp")
  or die "scp failed: " . $ssh->error;

[QM]

OK, I see that. So it seems I can use $ssh->capture2(...).

Are there any issues between Net::OpenSSH and Parallel::ForkManager? Or is there a better way to do this without P::FM?

[salva]

There shouldn't be any issues combining both modules.

Check also Net::OpenSSH::Parallel.

[QM]

I've come back to this now, and tried N:O:P. It makes it very simple, here's the core of the script:

for my $host (@hosts) {
    $pssh->add_host($host, user => $user);
}

$pssh->push('*', 'command', { stderr_to_stdout => 1 }, $cmd );
$pssh->run;

My next problem is that I want to decorate the return from each host, to tell them apart. Perhaps something like this:

%) net.pl -c uptime kermit fozzy
kermit)  10:49:37 up 3 days, 21:38,  0 users,  load average: 1.00, 1.0
+1, 1.05
fozzy)   10:49:37 up 6 days, 21:08,  0 users,  load average: 1.00, 1.0
+1, 1.05

I'm not sure how I would extend N:O:P to do this. Probably have to go back into N:O.

See my OP for an update, as I had a D'oh moment, and realized it was that easy.