Re: [Netdisco] Multiple Netdisco Front Ends

[Bill A. <bi...@an...>]

Your off the top of your head is pretty good.

I now have 2 front ends working with 2 databases with 2 configuration
files, etc.

On 12/14/2010 03:57 PM, pe...@go... wrote:
> I set up multiple frontends/databases once so it can be made to 
> work. It was at my previous employer though so the following is off 
> the top of my head - let us know what doesn't work out...
>
> On 09/12/2010 23:12, Bill Anderson wrote:
>> I created a new database for a second Netdisco instance, and can
>> successfully discover devices and populate the second database tables.
> Okay it looks like you have netdisco.conf and netdisco_dese.conf. I 
> assume the netdisco.conf and netdisco_dese.conf files are identical 
> apart from the database connection details and perhaps the variables 
> used only for backend polling (ignore_* etc).
>
> We'll start with the Apache2 configuration...
>
>
> # You do need to replicate most items for each frontend you have.
>
> Alias /netdisco      "/usr/share/netdisco/html"
> Alias /netdisco_dese "/usr/share/netdisco/html"
>
> # I implemented some of this using LocationMatch to save repetition.
>
> <LocationMatch "/netdisco(_dese)?">
>    Options +Indexes
> </LocationMatch>
>
> # Note that I've moved the PerlSetVar here inside the LocationMatch:
>
> # Turn on MASON for .html documents
> <LocationMatch "/netdisco/.*\.html$">
>    SetHandler perl-script
>    PerlSetVar site "netdisco"
>    PerlHandler netdisco::Mason
> </LocationMatch>
>
> # Turn on MASON for .html documents
> <LocationMatch "/netdisco_dese/.*\.html$">
>    SetHandler perl-script
>    PerlSetVar site "netdisco_dese"
>    PerlHandler netdisco::Mason
> </LocationMatch>
>
> # We can save space again with a change to the LocationMatch:
>
> # Decline access to mason internals
> <LocationMatch "/netdisco(_dese)?/.*(\.mc|autohandler|dhandler)$">
>    SetHandler perl-script
>    PerlInitHandler Apache::Constants::NOT_FOUND
> </LocationMatch>
>
>
> Next up the MASON conf...
>
>
> # We only need one of these stanza, so pick either config file.
> # Whichever file you pick will set things like the network map type.
>
> { package HTML::Mason::Commands;
>    use netdisco qw/:all/;
>    &netdisco::config('/etc/netdisco/netdisco.conf');
> }
>
> # Now we set up one Mason Session Handler for each frontend
> # the customized items are:
> #   the package name
> #   session_cookie_name
> #   session_data_source (i.e. db name)
> # Also you will see two variables have been added to the handler()
> #   webpath
> #   db_Pg (same as the session_data_source)
>
> # Setup Mason and Session Handler
> { package netdisco::Mason;
>    use HTML::Mason;
>    use HTML::Mason::ApacheHandler;
>    use strict;
>
>    my $ah = new HTML::Mason::ApacheHandler(
>      args_method => 'mod_perl',
>      comp_root => '/usr/share/netdisco/html',
>      data_dir => '/var/lib/netdisco/mason',
>      request_class => 'MasonX::Request::WithApacheSession',
>      session_class => 'Apache::Session::Postgres',
>      session_commit => 1,
>      session_use_cookie => 1,
>      session_cookie_expires => '+1y',
>      session_cookie_name => 'netdisco',
>
>      session_data_source => 'dbi:Pg:dbname=netdisco',
>      session_user_name => 'netdisco',
>      session_password => 'dbpassword',
>    );
>
>    sub handler {
>      my $request = shift;
>      $netdisco::CONFIG{webpath} = '/netdisco';
>      $netdisco::CONFIG{db_Pg} = 'dbi:Pg:dbname=netdisco';
>      return $ah->handle_request($request);
>    }
> }
>
> # Setup Mason and Session Handler
> { package netdisco_dese::Mason;
>    use HTML::Mason;
>    use HTML::Mason::ApacheHandler;
>    use strict;
>
>    my $ah = new HTML::Mason::ApacheHandler(
>      args_method => 'mod_perl',
>      comp_root => '/usr/share/netdisco/html',
>      data_dir => '/var/lib/netdisco/mason',
>      request_class => 'MasonX::Request::WithApacheSession',
>      session_class => 'Apache::Session::Postgres',
>      session_commit => 1,
>      session_use_cookie => 1,
>      session_cookie_expires => '+1y',
>      session_cookie_name => 'netdisco_dese',
>
>      session_data_source => 'dbi:Pg:dbname=netdisco_dese',
>      session_user_name => 'netdisco',
>      session_password => 'dbpassword',
>    );
>
>    sub handler {
>      my $request = shift;
>      $netdisco::CONFIG{webpath} = '/netdisco_dese';
>      $netdisco::CONFIG{db_Pg} = 'dbi:Pg:dbname=netdisco_dese';
>      return $ah->handle_request($request);
>    }
> }
>
>
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