27 November 2012
Heroku is shutting down the Aspen stack effective November 26, 2012. I have few apps still running on Aspen, but most of them are trial apps, so I never bothered to migrate to Cedar. Except, today I realized Codelovr’s site was down. It was still on Aspen!
I quickly pulled down the code. After quick check, it was a rails app during the early days. But it was serving just a single html file with one stylesheet. There’s no reason why we should continue with that. I decided to just serve static html directly. A quick search showed there are multiple ways to serve static html on Cedar stack. I chose to use Apache to serve it. I got the tutorial from http://kennethreitz.com/static-sites-on-heroku-cedar.html
First we must make sure
index.php exists. I copied my
index.php. I’ve copied my html and stylesheet to new directory.
To understand why we need
index.php, we can have a look at how heroku-buildpack-php detect it. The code is here https://github.com/heroku/heroku-buildpack-php/blob/master/bin/detect. The exact line is
Then we turn off php engine
Commit everything, create new Cedar stack and push!
If everything is cool we can delete the Aspen app and add back our custom domain to the new Cedar app.
Another thing I learned today is how to run task in background. There are places where port 5000 is blocked and running
heroku run rake db:migrate always ended up with time out connecting to process. To bypass that, we just run it in background with
You can read more here https://devcenter.heroku.com/articles/oneoff-admin-ps#running-tasks-in-background