Simple image management application for use on Google AppEngine with the option to use Amazon S3 as a storage back-end.
In Gareth’s words
“I like to add the odd image to a blog post now and then, but hate having to upload and resize images so they fit nicely. This simple application scratches that itch. Simply upload and resize images and then host them from AppEngine. It was also the perfect opportunity to play with the Image API.”
I modified the code to make it clever (although the code itself is not clever), to be able to switch to Amazon S3 if the S3 settings are specified. It fails gracefully to store images on Google App Engine if there are no S3 settings, but needs better handling.
For the most part it’s just a matter of deploying to AppEngine which I won’t cover here. Read the official documentation for details.
By default images are viewable by everyone but the upload panel is only available to the administration for your account. If you want to make that available to any registered user then change the following line in the app.yaml configuration file.
- url: /.* script: backend.py login: admin
To this:
- url: /.* script: backend.py login: required
To enable S3 storage, all you need to do is either modify the awskeys.py file or add your own awskeys_local.py file (this is there to prevent your keys getting committed to GitHub, which they will if you are using a Git copy and use awskeys.py to store your keys).
It currently uses keys to identify resources, which has the advantage of being very easy to implement and the disadvantage of making sharing data between instances impossible. This means if you upload images locally to test things out you’ll have to upload them again when you deploy to App Engine. I might fix that if I get bored or it I start to make extensive use of it.
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