How to backup an AppEngine site?

Question

So, you build a great shiny cloudy 2.0 website on top of AppEngine, with thousands upon thousands of images saved into the datastore and gigs of data at the blobstore. How do yo

Answer 1

I had some trouble with the suggested solution, so I had to fight with it a little. Here's what I came up with:
1. Add remote_api to app.yaml as described above or simply as
builtins:
- remote_api: on
2. Creating bulk loader as described above resulted in an authentication error for me like bug1125. The command below worked
appcfg.py create_bulkloader_config --filename=/bulkloader.yaml /
3. Change all the TODOs in bulkloader. In my case I changed all the connectors to "csv" and gave all foreign keys meaningful names.
4. I used the following (bash) command to back up all the kinds
for f in cat /bulkloader.yaml | grep "\- kind" | awk '{print $3}'
do
    appcfg.py download_data / --filename=backup/$f.csv --config_file=/bulkloader.yaml --kind=$f
done


Note: Both commands are meant to run for a folder above the app folder