[Dancer-users] deployment confusion

[Alex Kapranoff]

On Wed, Apr 14, 2010 at 18:03, Duncan Hutty <dhutty at allgoodbits.org> wrote:

> I'm looking to have nginx use Dancer to run a subsection of a website,
> but while I know how to use apache fairly well, I'm new to both nginx
> and Dancer.
>

We use nginx extensively and I would definitely recommend this scheme.

I prefer HTTP-only setup for various reasons (mostly because it's much
easier to debug than FastCGI) so
here's my very simple Starman-based configuration that runs
http://perl.worldken.org.

I run a Dancer app with this:

$ plackup -s Starman -p 6001 -E production

And the nginx config:
server {
        listen   80;
        server_name  perl.worldken.org;
        access_log  /var/log/nginx/perl.worldken.org.access.log;
        location / {
                proxy_pass   http://127.0.0.1:6001;
        }
}

Ask any questions.


> I've looked carefully at D::Deployment and nginx/PSGI/Plack docs and I
> confess to be a little confused as to where each part fits into the whole.
>
> I think I understand how to make nginx proxy for requests for the
> subsection using fastcgi:
>
> server {
>        listen *:80;
>        servername blah
>        location        / {
>                root    /var/www/html;
>                index   index.html
>        }
>
>        location /dancer {
>                include fastcgi_params;
>                fastcgi_pass    unix:/var/run/dancer.sock;
>        }
> }
>
> But that means that, unlike Apache, I need something else to create the
> socket, listen for requests, respond to the requests, etc.
>
> I think that could be a standalone plackup daemon:
> plackup -s FCGI --listen /var/run/dancer.sock --daemonize --nproc 5
> --app /path/to/Dancer_App/app.psgi
>
> that would I then write my own initscript for.
>
> Is that:
> a) correct?
> b) considered to be an admirable, efficient way to run a small
> production server or is this more for a development environment?
>
> I think that instead of the plackup command, I could use Starman to do the
> same thing.
>
> I think my confusion is coming from the fact that there are so many
> possible ways to deploy and I don't have a good understanding of how
> fastcgi/psgi/plack all fit together.
>
> Perhaps I need some explication rather than merely instructions, although
> instructions would be a good start:)
>
> Duncan Hutty
>
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