Issue
My app requires gdal libraries installed in the OS in order to work
Resolution
The Heroku community supported buildpack, heroku-buildpack-apt adds support for installing packages from apt (such as GDAL) during build. You can add it to your project by following these steps:
Add the buildpack:
$ heroku buildpacks:add --index 1 heroku-community/apt
Create a file in your application root called Aptfile with the gdal dependency:
Aptfile
gdal-bin
Commit and deploy:
$ git add Aptfile
$ git commit -m "Add apt dependency"
$ git push heroku master
...
$ heroku run bash
Running bash on morning-plains-93483... up, run.2593 (Free)
~ $ which ogr2ogr
/app/.apt/usr/bin/ogr2ogr