{"id":459,"date":"2013-08-24T18:29:00","date_gmt":"2013-08-24T23:29:00","guid":{"rendered":"http:\/\/www.aibistin.com\/?p=459"},"modified":"2020-04-11T14:11:12","modified_gmt":"2020-04-11T18:11:12","slug":"deploying-my-perl-application-to-dotcloud","status":"publish","type":"post","link":"https:\/\/www.aibistin.com\/?p=459","title":{"rendered":"Deploying My Perl Application to dotCloud"},"content":{"rendered":"

Note<\/strong>: dotCloud has since been renamed to docker or “docker hub”<\/a><\/span><\/p>\n

dotCloud<\/a> provides an easy way for you to show your Web application to the world.<\/p>\n

This is how I deployed my Moving Company Travel Time Calculator<\/a> on dotCloud.<\/p>\n

Create the dotCloud application.<\/span><\/p>\n

\ntraveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud create traveltime\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Creating a live application named "traveltime"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Application "traveltime" created.\n        Connect the current directory to "traveltime"? [Y\/n]: Y\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connecting with the application "traveltime"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connected with default push options: --rsync\n<\/pre>\n
It looks like the application has been created. I then created a configuration file, “dotcloud.yml”.<\/p>\n
\nwww:\n  type: perl\n  approot: traveltime\n  requirements:\n    - App::cpanminus\n<\/pre>\n
Then connect..<\/p>\n
\ntraveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud connect traveltime\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connecting with the application "traveltime"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connected with default push options: --rsync\n<\/pre>\n
I need to tell “app.psgi” who my Dancer2 script is.<\/p>\n
\n\ntraveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; echo "require 'bin\/app.pl';" &amp;amp;amp;amp;amp;amp;amp;amp;gt; app.psgi\n\n<\/pre>\n
Then deploy the application<\/p>\n
\n\ntraveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud push\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Pushing code with rsync from ".\/" to application traveltime\n        building file list ... done\n        .\/\n        dotcloud.yml\n        .dotcloud\/\n        .dotcloud\/config\n        traveltime\/\n        traveltime\/Changes\n        traveltime\/MANIFEST\n        traveltime\/MANIFEST.SKIP\n        traveltime\/Makefile.PL\n        traveltime\/README.pod\n         ...\n         14:34:17.360184: [www] Successfully installed Dancer2-0.04\n         14:34:17.539632: [www] &amp;amp;amp;amp;amp;amp;amp;amp;lt;== Installed dependencies for .. Finishing.\n         14:34:17.540369: [www] 49 distributions installed\n         14:34:22.529592: [www] Build completed successfully. Compiled image size is 11MB\n         14:34:22.548716: [www] Build successful for service (www)\n         14:34:22.563869: --&amp;amp;amp;amp;amp;amp;amp;amp;gt; Application (traveltime) build is done\n         14:34:22.582326: --&amp;amp;amp;amp;amp;amp;amp;amp;gt; Provisioning services... (This may take a few minutes)\n         14:34:22.599485: [www] Using default scaling for service www (1 instance(s)).\n         14:34:22.651213: [www] Using limits for service "www": ram=64M\n         14:34:22.696068: [www.0] Provisioning service (www) instance #0\n         14:34:27.002331: --&amp;amp;amp;amp;amp;amp;amp;amp;gt; All services' instances have been provisioned. Installing code...\n         14:34:27.015045: [www.0] Installing build revision rsync-1371306712243 for service (www) instance                    #0\n         14:34:34.852233: [www.0] Running postinstall script...\n         14:34:35.582842: [www.0] Launching...\n         14:34:36.905954: [www.0] Waiting for the instance to become responsive...\n         14:34:37.910787: [www.0] Re-routing traffic to the new build...\n         14:34:38.031666: [www.0] Successfully installed build revision rsync-1371306712243 for service  (www) instance #0\n         14:34:38.039928: [www.0] Installation successful for service (www) instance #0\n         14:34:38.043176: --&amp;amp;amp;amp;amp;amp;amp;amp;gt; Application (traveltime) fully installed\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Application is live at http:\/\/traveltime-aibistin.dotcloud.com\n    [10:34 - 0.20]\n    traveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; \n\n<\/pre>\n
I then checked the URL http:\/\/traveltime-aibistin.dotcloud.com, which gave me an error.
\n
\n\"uWSGI Error
\nPerl application not found\"
\n<\/code>
\nSo off to the log files to check what went wrong.<\/p>\n
\n traveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud logs www\n[www.0] ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; \/var\/log\/supervisor\/supervisord.log &amp;amp;amp;amp;amp;amp;amp;amp;lt;==\n...\ncloud\/rsync-1371314776610\/traveltime\/config.conf: Cannot load \/home\/dotcloud\/rsync-1371314776610\/traveltime\/config.conf: required support modules are not available.\n[www.0] Please install Config::General at \/home\/dotcloud\/perl5\/lib\/perl5\/Dancer2\/Core\/Role\/Config.pm line 97\n[www.0]  at (eval 35) line 19\n[www.0] BEGIN failed--compilation aborted at bin\/app.pl line 3.\n...\n[www.0] ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; \/var\/log\/nginx\/access.log &amp;amp;amp;amp;amp;amp;amp;amp;lt;==\n<\/pre>\n
So it looks like dotCloud couldn’t find Config::General CPAN module. It looks like I didn’t do such a good job managing my modules dependencies. I could have used the Behemoth of Module creation Dist::Zilla<\/a> to do this. However as this is not an app that I wish to upload to CPAN, or install on my laptop I wanted an easier way.<\/p>\n
I came across this new “Bundle I searched the <\/a>CPAN<\/a>for another way. r for Perl” developed by the prolific and excellent Pearl developer Tatsuhiko Miyagawa<\/a>. So I figured it must be good. And it is. I won’t bore you with the details here, as you can read his documentation yourself.<\/p>\n
I now seem to have all my dependencies in order and I ran the “dotcloud push” command again. I ran into another problem. I was running Perl 5.12 on my Ubuntu laptop, and dotCloud needs at least Perl 5.14. Well I guess it was about time that I upgraded my Perl version. This took a while, as I decided to load perlbrew<\/a> to manage my Perl installations.<\/p>\n
I ran into a few glitches here and there, but I finally got it working with lots of help from KENTNL’s perlbrew blog<\/a>,and a little help from DA Golden’s blog<\/a>.
\nSo, it’s time to try again from scratch.<\/p>\n
\n\ntraveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud destroy\n    Destroy the application "traveltime"? [y\/N]: y\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Destroying "traveltime"\n\n<\/pre>\n
\n\ndotcloud create traveltime\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Creating a live application named "traveltime"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Application "traveltime" created.\n    Connect the current directory to "traveltime"? [Y\/n]: y\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connecting with the application "traveltime"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Connected with default push options: --rsync\n\n<\/pre>\n
OK, looking good so far. Now, I have my dotCloud “traveltime” application up and running. I’m not too happy with the domain name that I have been issued by dotCloud, “http:\/\/traveltime-aibistin.dotcloud.com”.
\nSo, I decided to change this to one that I already have.<\/p>\n
\n\nTravelTime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud domain add www www.carryonmoving.net\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; domain "www.carryonmoving.net" created for "www"\n    ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Now please add the following DNS record:\n        www.carryonmoving.net. IN CNAME gateway.dotcloud.com.\n\n<\/pre>\n
Then update my DNS settings on CloudFlare<\/a> and I’m done.<\/p>\n
The “finished” (well almost) App Moving Company Travel Time Calculator can be viewed here<\/a>.<\/p>\n
Useful Links<\/p>\n
This is where I got lots of helpful advice for this endeavour.<\/span><\/p>\n
    \n
  1. dotCloud Perl Tutorial<\/a><\/li>\n
  2. Dancer2 Deployment With dotCloud<\/a><\/li>\n
  3. Marco Fontani’s Dancer Deployment with dotCloud piece, on blogs.perl.org<\/a><\/li>\n
  4. Perl Mongers dotCloud Presentation (which I just found)<\/a><\/li>\n
  5. Phillip Smith’s Catalyst with dotCloud piece, on blogs.perl.org<\/a><\/li>\n<\/ol>\n
    Follow @aibistin<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    Note: dotCloud has since been renamed to docker or “docker hub” dotCloud provides an easy way for you to show your Web application to the world. This is how I deployed my Moving Company Travel Time Calculator on dotCloud. Create the dotCloud application. traveltime &amp;amp;amp;amp;amp;amp;amp;amp;gt; dotcloud create traveltime ==&amp;amp;amp;amp;amp;amp;amp;amp;gt; Creating a live application named "traveltime" […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[7,21,19,39,27,20],"class_list":["post-459","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-dancer","tag-dancer2","tag-deploy","tag-docker","tag-dotcloud","tag-perl"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/posts\/459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=459"}],"version-history":[{"count":42,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/posts\/459\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=\/wp\/v2\/posts\/459\/revisions\/1048"}],"wp:attachment":[{"href":"https:\/\/www.aibistin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aibistin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}