Update: this hybrid Yesod-Hakyll web site is now live
I currently use Yesod along with Keter for the seattlehaskell.org web site and I’m very pleased with it. The site has a very small dynamic portion, specifically the bit which queries the Meetup API to list upcoming meetings on the web site’s front page.
In order to support future static content, I really want to use a static content generator and the obvious choice for a Haskell-based and Haskell-themed web site is Hakyll. So, the problem is that I would like the dynamic portions of my web site to use Yesod, the static portions to use Hakyll and, yet, I would like to keep the two visually consistent. Over the course of a few blog posts, I will describe the various steps I have taken to make this happen. Note, that I haven’t launched the new variant of the site yet and, so, some of the approaches I will describe are still experimental.
I use Apache as the front end web server and, so, the first problem is how to serve such a “blended” web site. I have Keter serving my Yesod application on port 3000 and I would like all my static content to be presented under the virtual subdirectory
content. So, given a domain name of
mydomain.com, here are a few examples of the routing that I would like to configure:
http://mydomain.com/(dynamic portion of Yesod app)
http://mydomain.com/about(dynamic portion of Yesod app)
http://mydomain.com/static/css/bootstrap.css(static portion of Yesod app)
To achieve this, I use the following Apache configuration:
This sets up reverse proxing to
http://0.0.0.0:3000/ for all URLs whose root directory is not
content. All URLs under
content are rooted to the document root. This configuration also does nice URL rewriting so that the
.html file name extension is not needed for files that exist in the document root. Furthermore, if the request does include
.html, the server will issue an HTTP 307 redirect to the extensionless URL - thus ensuring one version of truth.
I already have this reverse proxying set up at seattlehaskell.org with the Keter-hosted Yesod application up and running. Currently, the static content consists of a single “Hello World” file. This will eventually be replaced with my Hakyll-generated static content.
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