Re: [gentoo-server] excute remote emerge

[Ben Munat]

rdmurray@××××××××.com wrote:
> On Thu, 7 Sep 2006 at 11:48, Francisco Olarte Sanz wrote:
>> On Wednesday 06 September 2006 23:12, Ben Munat wrote:
>>> Well, I think the response is overwhelmingly clear: screen!
>>> I just wanted to add my 2 cents that I absolutely love screen... it has
>>> saved my ass countless times. The only problem is remembering to run it
>>> on login before starting the emerge. I suppose I really should look into
>>> getting bash to run it for me automatically. Anyone got a script for
>>> that?
>>
>>     I don't normally use screen for login, but as none of my servers
>> allow
>> root-sshing directly what I'm used to to is ssh normaluser@server,
>> su -c 'screen -DAR', emerge, instead of plain su.
>
> This is probably more info than most people want to hear, but some other
> sysadmin may find it useful, so what the heck.
>
> I work on around two dozen servers that are mixture of unix OSes, and
> I'm only primary sysadmin on some of them.  What I do is set myself
> up a minimum consistent environment on each machine using a little
> rsync script.  That environment includes my laptop's ssh key and some
> "helper" scripts.  On my laptop, from which I do all my work, I run the
> 'ratpoison' window manager, which is to X what screen is to the console.
> Then I use ratpoison's 'run a command in a window' function to run a
> script to connect to whatever machine it is I need to work on.  (eg:
> 'workon mail' to get to the mail server I manage.)  That script looks up
> the hostname and screen name associated with the nickname 'mail', sshes to
> the host, and runs the helper script ('workonscreen') on the target host.
> That script saves the ssh environment vars (so I can source them inside
> screen to get access to my ssh-agent connection), does a screen -wipe
> in case the server crashed since my last connect, and then connects to
> a named screen session.  I use named sessions so I can have more than
> one screen "workspace" on a given host and get back to them by name.
>
> This makes for a very efficient work environment.  The ratpoison windows
> essentially become workspaces, where the screen in a given window manages
> the windows of my workspace.  The ratpoison and screen keystroke commands
> are (by design) very parallel, so the muscle memory is quite strong and
> getting to exactly the window I need happens almost as fast as I can
> think it (I'm a fast typist, and I use named windows and use the names
> for window switching).  I can also use the screenrc file to set up a
> default workspace with various windows and running programs, though I
> haven't done that much on the hosts yet (I use that feature extensively
> on the laptop, though).
>
> Oh, yeah, and I never log in as root.  I always use sudo to run root
> commands :)  But there's no reason you couldn't do the same thing but run
> the screen as root.  Personally I always have only one window visible at
> a time, but I imagine this technique would work quite well even if you
> do like having your window split into multiple pieces.  (I do do that
> sometimes to, say, have an IRC window up and visible while I'm working
> in the other pane.)
>
> I can never figure out what all this fuss is about desktops.  I've never
> found the desktop metaphor to be particularly efficient...
>
> --David


Very nice... will put this aside to try out when I have some time... 
really like the idea of named windows which just know what machine to go 
to...

And as far as root login goes... yeah, I know... I know... I tried to 
push my brother into letting me turn off root login, but he just 
insisted and he pays for the server so... I suppose I could still always 
login as my user and then su -- and be happy that I'm being "correct" -- 
but knowing it's there and being lazy.... etc.

b

-- 
gentoo-server@g.o mailing list