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Mojolicious_Lite_on_OpenShift

How to make Mojolicious::Lite work in a Perl 5.10 cartridge on OpenShift

##Introduction

Anyone that has tried to make Mojolicious::Lite work on OpenShift has probably ended up being very frustrated by a combination of outdated or just no information at all. Hopefully my pain will help you.

This tutorial assumes:

Some of the commands will be specific to your environment:

  • __DOMAIN__ refers to your OpenShift domain name you have defined in your settings
  • __APPNAME__ refers to the name you choose to create your application with
  • __APP_ID__ refers to your OpenShift application identifier

##Steps

Create a new OpenShift application with the Perl 5.10 Cartridge, either in the OpenShift online or using the client tools. Replace __APPNAME__ with your application name:

rhc app create __APPNAME__ perl-5.10

Change to the application directory you just created:

cd __APPNAME__

Determine your application id. This can be done using the client tools or online:

rhc ssh __APPNAME__

Copy the 24 character hexadecimal string, e.g. 551c3c605973ca4a4e00018f. This is your application id.

The application id can also be determined in OpenShift online by looking at the git clone URL on the top right:

ssh://**551c3c605973ca4a4e00018f**@__APPNAME__-__DOMAIN__.rhcloud.com/~/git/__APPNAME__.git/

Edit the .htaccess file, replacing __APP_ID__ with your application id:

SetHandler perl-script
PerlResponseHandler Plack::Handler::Apache2
PerlSetVar psgi_app /var/lib/openshift/__APP_ID__/app-root/runtime/repo/index.pl
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-l
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_URI} !-f
RewriteRule (.*) /index.pl/$1 [QSA,L]

Edit the .openshift/cpan.txt file. All perl dependencies go in here during your development:

Time::HiRes
Mojolicious::Lite
Plack::Handler::Apache2

The file index.pl is where your Mojolicious code goes. For a quick test, replace the contents with this:

    use Mojolicious::Lite;

    get '/' => sub {
       my $self = shift;
       $self->render(text => "Hello World!");
    };

    app->start;

Check in code:

git commit -am "Initial code check-in"
git push

Access your site at:

http://__APPNAME__-__DOMAIN__.rhcloud.com